How to rule out a Spark Plug as your problem

Подписаться 609 тыс.

Просмотров 2,7 млн

50% 1

Learn how to easily test a spark plug to rule it out as the cause of your engine problem. A simple and highly effective method(when done properly) that I've always used to confirm if a spark plug is/is not the cause of engine starting and/or performance problems. Why run to the store and buy a new spark plug as a gamble, which may not be inexpensive, when you can verify if the plug is the problem using your digital multimeter. Save time and money! No method is 100%, but this method has been proven to work the great majority of the time.
I decided to upload this video when I discovered that not too many people knew about this simple, effective spark plug test.
**RULE OUT SPARK PLUG WIRES with my other video:
• How To Test Spark Plug...
**For GREAT deals(Usually cheaper than EBAY) on neodymium magnets, Fidget Spinners, electronics, drones, automotive tools, household items, phone accessories, locksmith tools, & much more, please visit the link below and SAVE IT AS A BOOKMARK on your computer or smartphone to Banggood for future purchases. (Your purchase supports my channel!)
All Items: bit.ly/2cgYr14
Flash Deals: bit.ly/2cb6CZB
*Try these money saving coupon codes: affiliate6 or aff7off or f8aaf1 or 781622 or 5719ed or elec* or ask if other codes are available!
Thanks For Watching!
Support the creation of more electronicsNmore videos:
paypal.me/elect...
**If you enjoy watching my videos, please show your support by SUBSCRIBING, POSTING LINKS to my videos on other websites & blogs, rating a "THUMBS UP", and watching my video playlists. Doing so helps to ensure that many more videos will be released in the future. (Views are essential to ensure this channel remains in an active state)**

Опубликовано:

27 сен 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 892

@electronicsNmore 7 лет назад

**ATTENTION: If you have any concerns about removing a hot spark plug from an aluminum head, then you can also remove the plug when it's cool and heat it up in a toaster oven to 300 Deg F to perform the "hot" test. Never file down or sand Platinum/Iridium tipped plugs. "Hotter" spark plugs have a LONGER ceramic nose, and "Colder" spark plugs have a SHORTER ceramic nose. Using a slightly hotter plug can prevent fouling if your rings are worn and allowing excessive oil to accumulate on the spark plug's electrode. Thanks for watching! **For GREAT deals(Usually cheaper than EBAY) on AUTOMOTIVE TESTERS & TOOLS, neodymium magnets, Fidget Spinners, electronics, drones, automotive tools, household items, phone accessories, locksmith tools, & much more, please visit the link below and SAVE IT AS A BOOKMARK on your computer or smartphone to Banggood for future purchases. (Your purchase supports my channel!) All Items: bit.ly/2cgYr14 Flash Deals: bit.ly/2cb6CZB *Try these money saving coupon codes: Double12 or BFTOOL or affiliate6 or elec or elec1 or measure or HDWARE2 or WELDTOOL or ask if other codes are available!

@linusrautenstrauch9667 6 лет назад

electronicsNmore c

@NitroGuyJH 6 лет назад

Lawnmowers now use suppression plugs due to the Delphi fuel injection systems on Kohler and Vanguard. Specifically the NGK bpr4es and bprm4es as well the 5’s too. If not the 5 volt reference in the OBC will act wonky and cause problems in the injectors as well as the coils. Just a little info on the subject :)

@walterfosdike2163 6 лет назад

electronicsNmore "

@garyswartz6512 6 лет назад

electronicsNmore 988

@TRAVIS-L 6 лет назад

electronicsNmore what is the best spark plugs to use in a 98 ford explorer 4.0 sohc v.6

@anthonywilliams4638 5 лет назад

Clear and articulate, no nonsense, good old common sense, no annoying hard rock or ricky ticky music to distract. Well done. Keep up the good work.

@electronicsNmore 5 лет назад

Thanks Anthony! Be sure to rate thumbs up, share my channel with others, and look over my extensive video playlists for other great videos of interest to you.

@Donderpad 5 лет назад

Can we have an article about cable resistance/airgap resistance, the latter mainly in America.?

@johnsmith7676 Год назад

Indeed. This gentleman does commendable, thorough work and actually USES his brain... Something that, very sadly, has become very rare these days.

@nicks9104 7 лет назад

Quick Tip: For continuity testing or even resistance you should always try an initial test by touching the two leads together first. Its not unheard of to have bad leads or connection to multi meter that may make you think something is wrong with the spark plug for example. Just good practice.

@johnsmith7676 Год назад

Gee, ya think?

@asiajanse1846 3 года назад

This is seriously like the best video ever ! I was one of the "didn't know" people. Had no clue. I just switched spark plugs around and read codes. This is so much better. In my defense I'm Polish and I'm a girl so it's ok ;)

@memylastname9972 6 лет назад

When I had the pleasure of working with a great racing mechanic Mario Deliotti I showed him that a plug I had out of my Alfa Romeo sparked perfectly well out on top of the engine. He laughed at me, called me something in Italian, and told me to put it the spark plug tester. I did and it sparked ok looking through the inspection window. Now I turned up the air pressure ( the tester connected to the shop air line) and at 80 psi plus it hardly sparked at all. Put a new plug in the tester and that lit up like a Christmas tree at any pressure. As an electronics engineer I have never understood why this should be but it taught me that a low voltage meter test at atmospheric pressure is worthless. Don’t waste your time just replace the plug.

@electronicsNmore 6 лет назад

Never had the test fail. Your situation was highly uncommon.

@that_swedejd9374 6 лет назад

At a guess you sound as if you are in your twenties and dont appear to work in the motor trade. I have a vehicle in my own garage that has just this problem. I call BS on your "uncommon" statement, if only because you haven't have enough real world exposure to have encountered it.

@memylastname9972 6 лет назад

I am 67 and have worked on most vehicles in an auto electrical capacity, It was just something that I surprised me as an electronics engineer, and later help me when I was designing electronic ignition systems.

@allansmith6140 6 лет назад

Yes that is correct, the higher the air pressure, the harder a spark has to work to punch through it. However you do not need anything as elaborate as a pressure chamber to test spark plugs "under pressure". Simply open the electrode gap to one quarter inch and it will simulate it for you. If you get a good spark like that its good to go.

@memylastname9972 6 лет назад

That's a good tip but unfortunately these were Lodge 2LH plugs with the four point electrodes.

@fredbach6039 5 лет назад

I can't speak for today but years ago Champion plugs came with a "booster gap" built into the internal connection from boot to tip. So the continuity check would read open circuit. The booster gap was there to make sure the available voltage was higher when the spark energy actually hit the tip. The idea was to be able to get a fast voltage rise at the tip despite some leakage to ground on the tip of the insulator.

@jimbohnenkamp5082 2 года назад

I used the information on this video to check a spark plug on a snow blower that was not starting and had been used once or twice. The 2nd measurement on the existing plug, from tip to the body of the plug, was not showing the results that were demonstrated in the video. I sprayed the other end where the spark should be coming and got inconsistent readings. I spent $1.90 to replace the plug, and the snow blower started immediately. Thanks for the service.

@electronicsNmore 2 года назад

Glad the video helped Jim! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others. Thanks ru-vid.complaylists

@aussie2uGA 3 года назад

This was very relevent for me, precisely illustrated the issue I was having, and here it's 2020. Thanks for keeping this on RU-vid.

@electronicsNmore 3 года назад

You're very welcome! Always nice to have viewers from Down Under! Be sure to share my channel with many others. Thank you!

@jeffball6108 6 месяцев назад

First time I've seen a video that recommends testing when hot. This is super important, especially if you have a problem with missing when warm, or even just an intermittent miss.

@obfuscated3090 8 лет назад

Neat stuff. Every mechanic should have a heat gun (I've scored a few at yard sales so I can scatter them around the shop) and will try your method before and after heating up some spark plugs. A propane torch would also work and handheld thermometers are dirt cheap. To quick check plugs I shoved the end of a gas grill piezo igniter into an angled spark plug boot then ran some solid copper household ground wire around the shell so the ground contact on the igniter has a path to ground. (It normally grounds thru the gas grill body.) Wrap with electrical tape and you're done. Great for detailed arc observation without running an engine.

@crpth1 7 лет назад

+Ob Fuscated - My heat gun is always moving around the workshop. Damn useful tool. :-) Neat trick with the piezo electric, I had an ignition simulator for testing but that's much better and small.

@JasonSmith-qx3zh 4 года назад

Let me make sure U hold heat on the plug till you read 300 degrees for a hot plug correct?

@bobbailey8246 10 лет назад

I know you are dealing more with the electrical side of testing, but, don't forget to also look for signs of leaking gases around the insulator and signs of plasma staining on the insulator. Both are good indicators of ignition faults/wear and tear. I am hooked on your videos, great job.

@168444 Год назад

Ttttttttttþttttttttttttttttttt

@jeremyboyce1537 5 лет назад

Hi Mr.Electronics ,man you are from the future ,you are so knowlegable man I admire you ,just brilliant.

@electronicsNmore 5 лет назад

:-) Be sure to share my channel with many others. Thanks!

@bennyrussell5551 8 лет назад

Actually we use to check the resistance at the end of the Seal line during the manufacturing process. We also did dielectric test to ensure the bisque had no pin holes. We made millions of every brand plug on the market. No one brand was different from the others. I know some guy just crapped his pants to hear this, but Champion, Atlas, Prestolite, Autolite, Shell, Sears and others were made exactly the same with the same materials.

@ARKhan-ix8ef 7 лет назад

Genius Russell Ceramic clay is porse (having gap between Cristal) and carbon with fuet mixed oil gets penetrated during compressions created by piston , the cause of conversion to good conductor is the presence of same oil, so the Manufacturer should use cementing process of between grains gap . The easy , I obtained by soaking the center conical white clay with drops of Elfie (quick jointing liquid gum) that penetrates well in new, Un used spark plug. The life gets doubled with smooth performance. Try n see . my cont. +91 8853486995 ,

@crpth1 6 лет назад

Bear Russell - I understand what you say perfectly. I always find quite funny the passionate discussions. French/American/ German/ cars is better than... something else. LOL :-) I worked for a very well known brand that among many others components, produced ignition coils. For anything American, French, German, English and so on, even Harley (motorbikes). Sometimes even part of the production line is the same... same workers under the same roof, etc. There are differences, but not where most people think. Surely not in the "brand". ;-) BTW the retail price is the most visible side of the story. LOL :-)

@tresnotas1483 6 лет назад

@lindah7534 6 лет назад

Well yeah, most products are marketed under various brand names even though they are manufactured by the exact same process. They all test the same, and operate the same. However, the issue occurs when the "Brand Name" is applied to the spark plug. The moment that the brand name "Champion" is imprinted on a sparkplug, its reliability is adversely affected.

@jamesbullock7257 4 года назад

Benny, hey I would like to chat a little if you find time. I knew what you mentioned above. Been indexing decades. usavetone@gmail.com I am an engineer re engineer of a few internal combustion systems and try chatting with guy's like you, thanks

@raypearson4475 3 года назад

came here after watching project farm, both of you are great and ill be sharing your videos too, well done videos!

@russg1801 7 лет назад

First off, this is a valuable test. Over the years I've seen too many outboard and power equipment owners automatically throw new plugs into a motor expecting that to be the miracle cure. Ninety percent of the time, it isn't. But, I never thought of testing the electrical resistance of the center electrode, which would be the only real reason for failure outside of wear or breakage of the insulator.

@cravenmoorehead5636 2 года назад

I just now found you channel. From reading comments on a project farm video. Holy cow do I have some watching to do. Glad to find you out there. Take care bud.

@electronicsNmore 2 года назад

Great to hear! Thanks for watching

@js4512 9 лет назад

One small point to contend... I worked in auto part stores for over 15 years and have learned from reading the indexes that the reach of the ceramic on the combustion side of the plug is what controls the heat range. when the tip is recessed (protected from heat) it will be a cold plug. When the tip is projected into the combustion chamber, you will have more exposure to heat , and more ceramic material to hold the heat. Other than that your video is correct!

@electronicsNmore 9 лет назад

+john smith Hi John. This issue has already been discussed in the video comment area, and I also placed annotations in the video to clarify things I said. :-) Thanks For Watching!

@robertlengemann4947 7 лет назад

I bought the same tester today at auto zone it's not $5 anymore but $8.99. Bit after seeing yours had to have it. Thanks for the tips.

@electronicsNmore 7 лет назад

Glad you enjoyed the video Robert! Be sure to check out my automotive/mechanical video playlist, and product review video playlist. Thanks

@caliwebman 9 лет назад

Straight up and to the point, clear speech, no bullshit. One thumbs up for you!

@electronicsNmore 9 лет назад

caliwebman Thanks Cali. Please share my channel.

@budirving7007 6 лет назад

caliwebman, How would shit from a bull get into a spark plug?

@F.Krueger-cs4vk 5 лет назад

Engines usually miss at idle or under acceleration/under load. Can either be a faulty spark plug/high tension lead & or coil pack. Some engines dont have high tension leads, but a coil pack for each spark plug. When you accelerate/more power, throttle butterfly opens increasing air supply into motor. Fuel injectors stay open longer allowing more fuel into motor. Therefore the ignition coil increases voltage for stronger spark under more demanding internal engine conditions. You can also test each individual high tension lead using ohms/resistance scale on your multi meter for either open circuit or very high resistance reading. As a rule of thumb, high tension leads should have anywhere between 7000 to 12000 ohms "per foot lenght" of high tension lead, (7K to 12 K scale). You can also test your ignition coil pack in a rather crude way, like a bush mechanic without any tools. Start your engine, let the motor reach normal operating temperature. Remove nut or bolt that secures each coil pack to the engine. With the motor idling, gently lift the coil pack slightly off one spark plug at a time so you can hear the sound of the spark jumping from the coil pack to the spark plug. Dont lift the coil pack too high off the spark plug. You will hear a specific normal spark rhythum. Your listening for an an irregular/abnormal spark sounding rythum. That will indicate a faulty coil pack. This test is limited to engines you can access the coil packs individually whilst motor is operational. Unfortunately some engines, wont permit this limited test. Be sure to wear rubber gloves & tools that are insulated. Cheers from 🇦🇺

@breannachron392 8 лет назад

Think about this? If the ohm reading is 1.5 ohms or more, I believe the spark plug is going bad. This is especially true when it comes to ohming out electronic fuel injector solenoids for Cummins Diesel Electronic Engines. Thanks for the tip on spark plugs. I never thought of your testing method on spark plugs. Please keep those videos coming!

@garyscottfischer1846 9 лет назад

Wonderful video. I put brand new plugs in my Ford Taurus, and it was missing really bad. Broke out my Meter, and two of the plugs were bad straight out of the box...Thank you, you saved my sanity !!

@electronicsNmore 9 лет назад

Gary Scott Fischer You're welcome. Be sure to check out my other videos, share, and rate Thumbs Up. Thank You!

@dh.mowersblowersservicesll4061 6 лет назад

In my opinion it's up to u or whoever is performing that task . Most mechanics should know how to test plugs . If u don't have time to test the plug then replace it . Or if don't have money to burn then test it. Do whatever works best for u .

@10laws2liveby 5 лет назад

The best video on the subject I've seen. Been working on bikes all my life and learned something new. Thanks

@electronicsNmore 5 лет назад

Thanks Tom! I have many videos on my channel that cover a wide range of subjects, so be sure to look over my video playlists below for other videos of interest to you, and most importantly share. You'll definitely enjoy my "Automotive" video playlist. ru-vid.complaylists

@grahamturner6119 3 года назад

Better off to use an insulation tester as used for electrical installation work set at 1000volt scale /me Retired elecrician

@Roger-eh7ez 6 лет назад

When I change plugs on a motor (about 3 times a week) I will test 1 of them on a pressurized spark plug tester. It will blow your mind what passes and what fails. You can't tell by looking at or ohming out a plug. Under load a spark would rather jump a 1" gap in free air than a 0.040" gap at the electrode under 100 psi. pressure. Also, a loose boot on a plug will allow the spark to run down the side of the porcelain to ground.

@electronicsNmore 6 лет назад

That may be true, but the test does work and never failed me.

@521CID 6 лет назад

I see you talk about the resistor in this video as well. The resistor is to stop capacitance after firing of the spark plug. As the ignition system operates, the shielding in the plug wires builds up an electrical capacitance, ( just like a capacitor does). Once this capacitance is so strong, it'll jump the spark plug gap, this isn't good, so they build a resistor into the plug to bleed this stored electrical charge of slowly so that it does not jump the plug gap, and ware out the electrode tip prematurely. It can also lead to pre ignition. The electrically induced noise that you hear over your cars speakers is caused by the alternator frequency change when the capacitor goes bad in the alternator. The capacitor is an electric filter in the alternator, it performs the same job that the capacitor performs in an aircraft magneto p lead, it acts as a filter to filter out electrically induced radio noise. I'm not arguing, I'm just setting the info straight.

@jamesbullock7257 4 года назад

Great comment,

@jamesbullock7257 4 года назад

wanna chat let me know thanks

@hoodwinkedbyanangelmichaelfazi 10 лет назад

As a Jet Mechanic I am glad you pointed out that the electrode could have cracks that and I might add that sometimes the cracks are not noticeable when the plug is cold but when the plug heats up the electrodes expand and causes a lack of Spark. It's funny watching this video I just went out and bought a tester this afternoon to test my Spark plugs in my new jet ski that I purchased that is not running and three mechanics have worked on and can't figure out why it wasn't running so I picked it up for 15,000 pesos in the Philippines with a trailer that's worth 25,000 pesos LOL because they couldn't get it running The motor itself according to the Spark plugs and lack of oil runs properly or did when it shut down so it hasto be a spark issue or electronics issue. Either way in a short period of time I will have ruled out any breaks in the electronic harness with the tester I purchased this afternoon and from there it can only be power pack which is as you note a sealed unit and must be replaced as a unit as a last resort. Absolutely ridiculous price of the electronic power pack in a jet ski GSX limited-edition SEA DO,,, $1000 plus shipping but it will be cheap if that corrects the problem considering I just purchased a jet ski worth 4000 American dollars for about $350 with a trailer that's worth more than what I paid for the unit and the trailer itself. Good upload and I will share it to Facebook.... not that any of the dweebs on my Facebook account would understand what you said LOL And I subbed your channel

@hoodwinkedbyanangelmichaelfazi 10 лет назад

my friend I have been living in the Philippines for five months now and have in a beautiful Apartment with a view of an ocean which is about 50 yards from my apartment and deck which makes my view in Florida look like a Manhattan tenement LOL I have a white sand beach and Miles beautiful coral right behind the house and I just purchase a jet ski that I am working on in order to travel around the Philippines via the ocean traveling method... go to my channel then look at all the videos of over 100 I have made of the Philippines is a beautiful place... once you get past the fact that the people are basically not very well educated but are pretty much friendly to the American dollar and to the people and have them so I am enjoying the lifestyle here immensely. To see where I live you can Google Wish You Were Here in ALONA BEACH and thanks for stopping by

@electronicsNmore 10 лет назад

Thanks for watching and subscribing! $1000 for the CDI/power pack.....what a bunch of criminals. I would try and remove all the potting material and swap out some components before I bought one. LOL . I would do a continuity test on every wire from point A to point B. My jet ski had one wire that corroded inside the insulation. Luckily I found it.

@hoodwinkedbyanangelmichaelfazi 10 лет назад

electronicsNmore that is precisely why I bought the meter a.k.a. to test each and every individual wire in every part of the harness From A to B. All it takes is a small crack in the insulation in a little bit of salt water and it will corrode internally as you well know. Plus if I showed you the video I made of the harness you would see that the three so-called mechanics peeled off some insulation about 3/8 of an inch long and twisted the wires together without cleaning the wire itself prior to twisting it which means it may not have any continuity whatsoever because they twisted oxidized wires together not knowing anything about oxidation because they are not mechanics in the true sense of the word. I however went out and purchased a nice little wire brush some flux 40/60 solder which is still legal in the Philippines I'm the properly spliced them together laterally like this supposed to be. Went to 12 stores in the last week looking for some heat shrink... and no one even knows what it is here in the Philippines so I purchased some 1/8 inch diameter clear hose used fish tank filters and after the joints are soldered I will put some black high heat silicone over the wire and slipped the tubing over that which I'm sure will be sufficient to keep it from getting wet... The machine ran perfectly until it was left unattended for a few months and when the man went to start it again it just didn't start so probably the electronics is not the issue and probably more like one of the three fuses I found that were blown?? Do you think? LOL We shall see,,, it's the 1494 in. cubic centimeter engine and if you look at it in the video I make this week you will say it looks like it just came out of the factory however when you look at all the cannon plugs you can see that the high-quality brass male and females are completely oxidized. So I will take my little files and drill bits and polish them up in an out. Between that and a proper soldering job and testing the wires themselves I should have ignition when I'm done with that. There are some heat sensors on the top of each head and also in the exhaust loop and I'm not sure if they will shut the motor down what I will check those as well and the tubing that goes to the sensors. This is my first jet ski and it didn't come with a service manual so I will look online I'm sure it's there but only purchase this machine three days ago and this is not my livelihood is now my hobby which I devote 10 hours a day to anyway LOL If I have any questions I will be sure to bring them up on one of your pages after I do some research on your videos if it is not covered somewhere that I can find? If I don't I still believe it is something a lot simpler than the power pack and that is my last resort and you are right it's highway robbery. Okay my friend thank you for returning my comment and best wishes to you from one mechanic to another. Michael

@nrmdm 6 лет назад

Where do you work at? Pratt & Whitney?

@FourSeasonsNorth4x4 6 лет назад

HoodwinkedbyanAngel Michael Fazio I am so glad I came across this video and y’alls ‘troubles’ after acquiring these sea-doos. I myself have been given one and it too was a ‘it ran perfectly when I shut it off but will no longer start’ scenario. 👍👍 I say “perfect!” as it too does not have any spark. Seeing as I love electronic/electrical type work I welcome the challenge...and hey, for the price?(free) I am ahead of the game already if it actually does need a part or two. Any recommendations where I should look first on one of these beasts? I have done two stroke ski-doos of all types so that part is pretty familiar, just not their watercraft. You say the ‘power block’ can/may be an issue?..I’m guessing it’s to do with leaking water internally causing it’s many quirks. Let me leave y’all with one recommendation when cleaning up corroded wires....you will thank me for this later..trust me. Whenever/where ever you have corroded wires needing to be reconnected and you find ‘sanding’ them or ‘scraping’ them with a blade don’t quite do it, try dipping them in muriatic acid from the hardware store. This product is used for cleaning and etching concrete in pools etc. NOW BE BERY CAREFUL WITH THIS STUFF!!! IT IS HIGHLY CORROSIVE AND EXTREMELY TOXIC!! USE IT WHERE THERE IS EXCELLENT VENTILATION AND KEEP CLEAN CLEAR WATER NEARBY TO NEUTRALIZE IT WHEN DONE. It takes only 10-20 seconds of dunking this in the acid and it’s done..clean. Quickly rinse it off with the clean water and dry it off completely. Do give it a few passes with the emery cloth or sand paper to get that brilliant copper shine back which makes it the easiest to solder. I know the good heat shrink is the best but I see not always available. Check for a product called ‘liquid tape’. It’s black in colour and smells a lot like contact cement. (😮 💡 😮☝️👍...did the lightbulb just come on? 👍😉) ...I believe if there is no liquid tape available, you may be able to improvise with the contact cement...I’ll leave that up to y’all to figure out 💡😉🤞👍 Spread this liberally on and over the newly soldered connection right onto the wire’s insulation so no water/moisture can penetrate it. Cover that with electrical tape to help stop any possible abrasions that may occur. Thank you kindly for any tips you may have for me and I hope mine will come in handy for you. With any luck it won’t take me long to repair it as up here in northern Canada, our ‘Sea-doo season’ is already awfully short as it is..from October to June the ice makes for some powerfully rough and cold boating on a sea-doo anyway. 😆😆😁😄🤣 All the best from a fellow mech. and watercraft enthusiast. 👋👋👋

@122martin122 6 лет назад

Sometime a plug can make a spark on the chassis and not in the cylinder head, its caused by the pressure, its a big factor in plug spark capability, and fooled plug can some time be recovered by burning the tips after cleaning it out with gas

@aodhmacraynall8932 6 лет назад

great video. good info and you are not talking about yourself like a lot of youtubers do.

@electronicsNmore 6 лет назад

Glad you enjoyed the video! Be sure to check out my extensive video playlists as well as my recent bicycle generator video, rate thumbs up, and share my channel with others. Thanks

@PhattyMo 10 лет назад

The type/brand of plug can indeed matter. I (and some friends) have only ever had good luck with NGK "V-power" plugs in our older cars (mostly V-8's). They last longer/run better,in my (our) experience. Some newer engines can be picky about the brand of plug as well. (I've even had good success using the NGK's in place of platinum plugs,in some newer engines.)

@electronicsNmore 10 лет назад

Hi, I never stated different types/brands of plugs did not matter, what I did say is the procedure outlined in this video works on all plugs. In my experience, using split fire / bosch platinum / NGK / autolite, I noticed no difference of performance with my personal water craft, cars, mowers, etc. I can probably switch out a plug that someone insists works better(without them knowing), and they would likely notice nothing. Thanks For Watching!

@Silverline2572 4 года назад

Excellent info! Had no idea all these years how to test plugs. Thank you👍

@electronicsNmore 4 года назад

Nothing is 100%, but it does work very well.

@StormieinFlorida 10 лет назад

Thanks! I have an older Ford truck and it's starting to get bad gas mileage, nothing else wrong, I keep up with it really well, clean air filters, the oil changes, anything it's needed gets done. She does have high mileage but it's never sucked gas like this in the 8 years I've had her.

@electronicsNmore 10 лет назад

You're Welcome! Be sure to rate "Thumbs Up" and share. Also check out my other videos as well. Could be a loss of compression. Do a compression test. Any smoke in the exhaust? If not, could be dirty valves, or a fuel system problem. Spark plug wires/plugs can also contribute to a loss.

@crpth1 9 лет назад

StormieinFlorida You might want to check the lambda sensor if your truck as one (or two). They tend to be forgotten and performance degrades with time.There's enough videos around to give you some insight on how to check it with a multimeter. Good luck ;-)

@El-Buddah 7 лет назад

To locate a bad plug just remove the plug coils one at a time while the engine is running. If the engine idlization doesn't become rougher and stays the same that means that plug is not contributing to the performance. You can try cleaning the plug if it's dirty, regapping and blowing out the socket port in the engine for debri.

@RussellBooth1977 8 лет назад

Well , I have fully rebuilt a Stihl hedge trimmer due to low compression & fitted a new carby due to having a leaking main nozzle check valve, the ignition coil was also replaced due to having no spark. The spark plug isn't NGK but their electrode resistance is 5 K ohms for their resistor type spark plugs,the plug I have measures 9 K ohms which I am told is too higher resistance which can cause hard starting & rough running , in my case I have a no start issue meaning that despite the spark plug having spark when removed from the spark plug hole there may not be enough voltage at the electrode to fire the air/fuel mixture in the engine. While the spark plug ran a Briggs & Stratton 4 stroke lawn mower I noticed the motor was harder to start & didn't run as smooth (surged) at medium to low speed (idle) ,actually it stalled at idle with that spark plug. NGK suggests a maximum of 5 K ohms from the spark plug terminal to the centre electrode,I am off to the auto parts store tomorrow to see if they can supply me with a suitable spark plug.

@Airon79 5 лет назад

In the past I measured the resistance of the new plug compared to the resistance of the old plug and gave the plugs a tolerance of 20% . That is how electronic resistors are ; with silver standard being 10% and gold standard being 20% . The plugs I use are cheap and when my cars computer starts tripping codes for bad plugs they are usually around 20% .

@electronicsNmore 5 лет назад

Thanks for watching Airon! Be sure to watch my "Auto & Mechanical" video playlist below, and most importantly share my channel with many others. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hnd7P7O_vEQ.html

@pigfigjig 4 года назад

Hey good vid ..I once had a issue with a plug that was fine, sparked fine ,but when under compression would not function at all..it just about wrecked me.

@electronicsNmore 4 года назад

Luckily I never had that problem. It doesn't happen too often.

@danfortin8429 6 лет назад

You offer good info for the info you have learned and it is kind of you to share this info with the public. I am searching for remedy for a small engine's ignition deficiencies that brought me to your video. However- please do let me point out that during this video you explain the "heat range" of spark plugs can be determined by the length of the ceramic insulator that remains outside of the combustion chamber during a plug's operation when in fact the exact opposite is the truth. It is the plug's business end that is within the combustion chamber that has a longer or shorter measure of exposed insulation or not that determines the " heat range" of that plug. A small bit of misinformation may have consequence of temporary or possibly immeasurable value. Such value compounds when the misinformed do indeed spread to others what they believed to be the facts. You have had over 1.6 MILLION views of this video, it is that fact which motivated me to point out one important fact of operation.

@electronicsNmore 6 лет назад

The "Heat Range" issue was clarified in the video comment section a long time ago. Read my "Pinned" comment. Thank you!

@captainboggles 7 лет назад

yep the insulater is the bit at the electrode end of the plug, look under the electrodes, if the porcelain goes deep , it is a "hot" plug ie: there is a longer path hor the heat to escape to the metal body, if the central insulator is short and stubby, the heat escape path is short and effective, ie: plug runs 'cooler' ( a old plug) Cool plugs will oil up , hotter plugs will burn it off. ie: a champion n3 has a short insulator and a L7 has a long insulator

@electronicsNmore 7 лет назад

Correct. My "Pinned" comment clarified all that.

@briant3403 7 лет назад

i understand some plugs r cheap, but, we had a problem one year going thur champion plugs anywhere from two day to two an hour it was bad, anyway its nice to know how to be able to ck out if a plug is actually done, great video

@electronicsNmore 7 лет назад

Thanks for watching! Be sure to rate thumbs up, check out my video playlists, share with others, and subscribe.

@munsif55 8 лет назад

very good gentleman, I am driving 1000 cc suzuki cultus, four cyclinders, It is 2012 model, EFI. The engine started to miss on CNG and a repairman changed a sensor on carbeurator. but later I started to feel misfire or sometimes light blasts in left cylinder. I removed that plug and put it into right side cyclinder, but then I felt misfires in right side cylinder. I removed it and purchased a new one, however your tutorial was realy very informative, now I will check the removed plug, wether it was out of order, however it was newly installed. There was a loose connection which not only damaged the wire but also damaged the plug.

@mohammednurgat7140 7 лет назад

JACK

@TheNoah117 7 лет назад

Kishan Patel you're an asshat, kishen. I for one enjoyed JACK's story, so there.

@doughunter3967 4 года назад

good vid and info, I am old and have done many types of mechanics my whole life , I wasn't aware of this...thanks for taking the trouble to share friend...God bless...doug

@electronicsNmore 4 года назад

Nice name. :-) Thanks for watching! Be sure to check out my extensive video playlists below for many other videos of interest to you, and most importantly share my YT channel on social networking sites. ru-vid.comc/playlists

@somerandomguy3868 7 лет назад

great video very informative I've known about the lean rich hot cold what the pulg is telling you about the engine and fuel delivery thanks for taking the time to share your method of testing

@electronicsNmore 7 лет назад

Be sure to check out my video playlists and share. Thanks!

@ben3318 2 года назад

Much easier to remove the plug , ground it and check for spark while cranking engine, coil is easy to test and doing it this way can diagnose improper gap issues

@reubenlopez3885 8 лет назад

Muy bien ilustrado,teniendo en cuenta que los manufactureros NO recomiendan quitar las bujías hasta que el motor se enfrie pero, entiendo que al hacer las .pruebas en frió al conectarlas otra vez para probarlas calientes, las podría dejar menos apretadas para que no vaya a ajustarse mucho da~ando así la rosca estando el motor caliente y así hacer ambas pruebas, Thank's.

@mypropoganda 10 лет назад

Very good video..Easy to understand for even a novice like me and your explanations are very thorough.

@electronicsNmore 10 лет назад

Thank You! Be sure to share, rate "Thumbs Up", and check out my other videos as well.

@ScottTurnerformeindustrious 10 лет назад

Really good educational video thank you.

@electronicsNmore 10 лет назад

Your welcome Scott! Be sure to share my channel with others, and check out my other videos as well. Thanks

@Chuffin_ell 6 лет назад

Had to learn this the hard way. Wish I had seen this video first....

@electronicsNmore 6 лет назад

Thanks for watching! Be sure to rate thumbs up, check out my extensive video playlists, and share my channel with others.

@CSSIandAssociate 10 лет назад

I put plugs in my acuara I believe they were E3 the tip screws on and off. Do not know why. However if get plugs like this put lock tite on them. The tips got loose and the code was no help in tracking it down. I should have checked the plugs. But I did not. $100 later from the dealer felt like an idiot. I am sharing so you can be aware of it. Other than that I did not have any problem with the plugs. Thanks for sharing this video learned alot.

@jimbos1567 3 года назад

Very well done. Easy to listen to and follow. thank youl

@electronicsNmore 3 года назад

Glad you enjoyed it Jim! Be sure to rate thumbs up, subscribe, and look over my extensive video playlists below for many other videos of interest to you. Taking one minute to share a link to my channel with others on social networking sites would be greatly appreciated. Thank you ru-vid.complaylists

@ranahamayun9919 4 года назад

Very good job 👍👍👍👍 Nice video 👌👌👌👌 Very good teaching 👍👍👍👍

@electronicsNmore 4 года назад

Glad you liked my video! Be sure to look over my extensive video playlists below for many other videos of interest to you, use supplied Amazon links to support my channel when making purchases(No added cost to you), and share links to my videos with many others on social networking sites. Thank you, and stay safe! ru-vid.complaylists

@stinkycheese804 7 лет назад

Most people don't know this because you don't need to do this. All you have to do is hold the threaded end against chassis ground to see if it sparks when cranking or running the engine. This will also indicate that power is getting TO the plug. If no spark you can repeat the test with a piece of bolt in the plug wire instead of the plug. You pointed to the wrong end when you indicated longer insulator means runs hotter. How far and thick it comes up at the spark end determines that. FYI, spark plugs practically never break apart in the middle, except possibly if you have trouble removing it and damage it doing so. Far more likely would be the tip has eroded away or is fouled too much, which might not be reflected at all in your direct contact meter ohm test. However this is all fairly silly. Once you've gone to the trouble of removing all the plugs (unless you have a specific cylinder misfire code), you might as well replace them. Spark plugs are not expensive in the grand scheme of vehicle repairs and far more often it's the hassle removing them in modern tight engine bays, not the expense that deters people from replacement, especially if it's a "V" engine instead of inline that has plug access at the top. As far as people claiming a plug is bad, that is very rare unless the plugs have so many miles on them that the owner already expected that it was time to replace them. I've been on multiple car forums for over a decade and am quite sure that spark plug paranoia is rare, except with specific engines known to, or evidence of excessive oil consumption which is noted by a drop in oil pan level.

@electronicsNmore 7 лет назад

Your method is not a sure way to test the plug. I outlined all tests in this video which have been proven to rule out the spark plug as the cause of engine trouble. You must learn to read PINNED comments before posting comments. Lastly, do it your way if you don't like my method. I never force anyone to do anything on this channel.

@chrisc6874 7 лет назад

Some might remove 4 ngk plugs on a motorcycle (which are easier to do depending on the setup) and pay $10 or more to replace them. Thats at least a 6pack ! Y not clean them and reinstall if they are good?

@521CID 6 лет назад

Stinky Cheese. I just replaced 18 spark plugs on a lycomin R 680 radial. Most the plugs had a resistance of 9.68 m ohms, that's 968,000 ohms of resistance, 5,000 is the point of replacement. Huge difference, these plugs still fired at low pressure in the plug spark tester, but when the pressure is increased in the tester to simulate the high cylinder pressures, the plugs stop firing, those are bad plugs. You can test your plugs all you want like you have explained, but it means nothing if they spark. Because there are no cylinder pressures acting on them to reviel that there faulty. That's why an engine alot of time will idle fine, but when you accelerate and open the throttle valve, the pressure in the cylinders increase and the plugs start to miss fire, creating a loss of power. You need your multi meter set to ohms, 1000 to under 5000 ohms is good, and the SPCT spark plug tester to simulate cylinder pressures while sparking the plug. That's how you test plugs. That will reveal bad plugs.

@cheriannsv 6 лет назад

I agree. Been working on vehicles for 35 years and what you're saying is true. Aircraft plugs are worth this test because they cost about $40 each, low end. Thanks for sharing.

@kr4mo 8 лет назад

According to NGK's web site, the heat range is determined by the length of the ceramic in the nose of the plug, not back at the wire connection.

@electronicsNmore 8 лет назад

+kr4mo Hi there. I guess you had annotations turned off. Very bad when watching my videos. :-)

@greggscats 5 лет назад

Thanks for the clear explanation.

@electronicsNmore 5 лет назад

You're welcome! Be sure to watch my "Auto & Mechanical" video playlist below, and most importantly share my channel with many others. Thanks ru-vid.com/group/PLQ6IOhUBblU3mBem9ImEgGzmqToW6SCJD

@philliphall5198 Год назад

I use a 1950 champion spark plug tester with air pressure It’s correct every time Then it cleans them to

@supersevenn 9 лет назад

the difference in insulator length on a hotter or colder plug is at the other end of the spark plug.....not where the boot goes but where the electrode is. cheers

@electronicsNmore 9 лет назад

supersevenn That is true, as I stated in the video with the use of an annotation, but usually in my experience, the nose length has a correlation to the insulator length. Shorter nose > Shorter insulator as well. I agree I could have stated it differently. Thanks For Watching

@gregwheaten8724 10 лет назад

Great video, concise and thorough and not boring as some of the educational vids on youtube are, these are important facts that anyone mechanically minded should know and in case they forget its good to come back and have this as a reference. Thanks! Big thumbs up :)

@electronicsNmore 10 лет назад

Thank You Greg. Be sure to share my channel/videos with others, and rate Thumbs Up.

@Manuel_Z_Kayaks 9 лет назад

WOW, you read my mind! I was just about to comment asking if I can just heat it up with a heat gun to test it warm. I have a 15 hp evinrude that will not fire, I was told it had good compression and spark but the seller was kind of a BUTT so, I'm going to get a spark tester to be sure. I put fuel in the carb, nope, put fuel in the spark plug hole, Nope!. If I pull it around 20 time it will POP!

@crpth1 9 лет назад

phartattack If the plug test is positive, next would be to check coil. If that also returns positive go for the fuel. Carburetor on marine applications tend to clog mostly due to lack of regular use. Either case make sure you have new clean fuel. Clogged gicleurs is very common also.

@scottcameron1476 4 года назад

Allow the engine to cool down to a room/shop temperature. (most applications). Attempting to remove the spark plugs from a HOT engine may cause the spark plug threads to seize, causing damage to the cylinder head threads. ... Also contaminated threads may prevent the proper seating of the new spark plug.

@MitzvosGolem1 6 лет назад

Look up Little fuse voltage drop table to find parasitic draw on battery. Many are unaware of this new method.

@rexanderson5458 6 лет назад

A spark plug can test fine with a tester but yet misfire under load. Best thing to do is to replace it.

@electronicsNmore 6 лет назад

Never had that problem, and if it does happen, it's EXTREMELY infrequent. Thanks for watching

@rexanderson5458 6 лет назад

electronicsNmore Cars do that. They misfire under load. Changing the plugs with new plugs fixes it. Testing with an ohmmeter isn't accurate. You're checking continuity. With a scope you see it breaks down under load. The electrode gets worn down and voltage requirements go up. Your method isn't accurate.

@electronicsNmore 6 лет назад

@@rexanderson5458 No method is 100%, but the method I've used over the past 25yrs has always worked great for me. What you describe happens INFREQUENTLY.

@rexanderson5458 6 лет назад

electronicsNmore A REAL mechanic knows plugs misfire under load. I took auto-mechanics. Backyard mechanic methods don't see what's really going on. I had a scope and I could see plugs misfire under load. Continuity tests isn't accurate. Ask a mechanic.f

@electronicsNmore 6 лет назад

OK know-it-all, whatever you say. LOL Clearly you know better, and all the times I used this test successfully over the years, must've been a Fluke! :-)

@luiscondori743 5 лет назад

Muy buena explicación ,

@electronicsNmore 5 лет назад

Tengo un montón de excelentes videos en mi canal que cubren a muchos temas diferentes, así que revisa mis listas de reproducción extensa video para otros vídeos de interés, tasa de pulgares para arriba y compartir mi canal con otros. Gracias

@noorhabib3855 3 года назад

Very prolonged pls make it short

@scuderiapraga6815 3 года назад

Thank you

@Wildcat5181 5 лет назад

Using a wire brush to clean the electrode and the anode creates a conductive coating that will short the current path. It is fool proof to use a spark plug sandblaster and they do not cost much at Harbor Freight if you have a decent output compressor but if you use a pancake compressor it might not work so well. Wire brushes do not like park plugs.

@xodrinker 6 лет назад

Thx for this video. What you are saying from 07:10 made me check and clean my spark plug thoroughly and now my scooter starts no problem! Great video. Thx again

@dane-my1qo Год назад

Thank you I never did that or knew how 🎉❤ 8:49

@dc112675 9 лет назад

Doug, thank you for your concise and informational video. A couple of questions...is it possible to test plug for spark while it is still in? Also, my specific application involves a non-working leaf blower, therfore i cannot test a "hot" plug; does that matter? My guess is that there are lots of people who are testing their plug because it can't "get" hot! Thanks again. dc

@BrucesShop 10 лет назад

Very well done video. You explained it better than I did. (I did a short rant on replacing plugs)

@electronicsNmore 10 лет назад

Thanks Bruce.

@malcolmhenry381 8 лет назад

Thanks you have just taught a old dog a new trick

@electronicsNmore 8 лет назад

+Malcolm Henry Glad you enjoyed my video. Be sure to check out my other videos as well, rate thumbs up, and share. Thank You

@RussellBooth1977 6 лет назад

I have found out that the test was inconclusive with a spark plug in my Dads Honda GX35 line trimmer. While the centre electrode tested at 10K ohms & the outer to centre electrode tested at 130 K ohms indicating a short circuit,I burnt the carbon off with a propane torch,the resistance checked at infinity ohms so it tested o.k. The motor still ran like crap so I swapped it for the spark plug out of his Honda hedge trimmer then it ran like a beauty. The problem was it was apparently cutting out with 1/2 a tank of fuel in it so I checked & replaced the fuel filter with a new one,I cleaned the fuel tank out because it was dirty. I also pulled the carby apart & blew it out but it would idle for a minute or so then stall which would throw anyone off as being a fuel problem. The problem was the spark plug !!!!

@electronicsNmore 6 лет назад

Never had it fail for me. I'd be willing to bet you cracked the electrode using a torch! Never use a torch. You clean the plug with a mini sandblaster or use carb/brake cleaner.

@RussellBooth1977 6 лет назад

Spark plugs get red hot in an engine anyway & the resistance went up when the carbon was burned off. For the sake of a $2 spark plug I would be better off replacing it, the electrode itself may be faulty as the spark plug fails particularly once the engine warms up,maybe the electrode insulator is cracked ? I don't know !!!! I had trouble in 1994 with an old Honda motorbike which had worn rings where I'd take it to tech to use their sandblaster to clean the carbon off the spark plugs,it got to the point that a hotter spark plug became the band aid solution to the problem for a while at least,they also had a vacuum chamber at tech which simulated the spark plug condition when under load inside the engine meaning that the spark can be checked under vacuum, I don't have anything like that at home. My Dads Honda lawnmower has seen a fair bit of use in its 15 years of use since new,the spark plug is original in the lawnmower & I just clean & adjust it every 6 months for him when I do the service on it,it is getting a bit worn out now & eventually will need replacing.

@brenthill5596 9 лет назад

great tutorial but the price of brake cleaner is the same price as a new plug where I live.

@electronicsNmore 9 лет назад

Brent Hill You can use carburetor or brake cleaner "IF' you have it laying around, otherwise you will have to buy a new plug. Many people that work on engines have these cleaners. Thanks

@Necrodoxious 8 лет назад

+Brent Hill that one can of brake clean will likely serve you multiple cleans. As mentioned, I think it is more of an option IF available. Not necessarily to go out of your way to buy brake clean vs a new plug.

@amandaskinner4247 8 лет назад

+Necrodox ,

@electronicsNmore 8 лет назад

***** Long Island. :-)

@ThamMalaysia 7 лет назад

I do use carburettor cleaner for my spark plugs. However, it doesn't really whiten back the ceramic insulator around the electrode, which has been darkened by oil and carbon. How about those sand blasting devices ?

@joepkortekaas8813 6 лет назад

I don't understand those comments about not pulling a plug from a hot alu head. I have been a tuner and motorcycle racer, and we started the bikes on hot plugs, and when warmed-up, changed to the cold racing type plugs. Never had a problem with the screw threads!

@electronicsNmore 6 лет назад

Agree 100%. I've taken hot plugs out of heads and never once damaged the threads. If you install by hand first, then tighten, everything should be fine. I have a lot of excellent videos on my channel that cover many different subjects, so be sure to check out my extensive video playlists for other videos of interest to you, rate thumbs up, and share my channel with others. Thank You

@billr111 8 лет назад

Great information! Thanks for taking the time to do this fine video!

@electronicsNmore 8 лет назад

You're welcome! Be sure to share my channel with others and rate thumbs up. Thanks.

@rajafayyazalhassan7956 Год назад

Good . Informative video

@ZombieJesus-e9t Год назад

Or you could just replace your spark plugs every couple of years, they're not that costly even in todays market.

@TingTingalingy 5 месяцев назад

It's fun to learn how to rule things out. You scorf at this, speaks volume of your character and general outlook on others.

@williampinson1125 4 года назад

Great video, very informative. Thanks!

@electronicsNmore 4 года назад

Glad it was helpful William! Be sure to look over my extensive video playlists below for many other videos of interest to you, and share links to my videos with many others on social networking sites. Thanks ru-vid.complaylists

@husseinkarakara1210 10 лет назад

spark plug has a life like everything else

@electronicsNmore 10 лет назад

They sure do, but why replace one that does not need to be replaced? Thanks for watching!

@vodonnell1 4 года назад

Very informative video, thank you from Dublin, Ireland.

@electronicsNmore 4 года назад

Glad you enjoyed it Vinny! Be sure to look over my extensive video playlists below for many other videos of interest to you, use supplied Amazon links to support my channel when making purchases(No added cost to you), and share links to my videos with many others on social networking sites. Thanks! ru-vid.complaylists

@ourlegacy 9 лет назад

Love you clear concise no nonsense delivery and relevant annotations. Do you only do the cold and hot tests to rule out starting/performance problems that are happening within the maintenance schedule or to also extend the maintenance schedule of spark plugs. Would you then oppose the recommendation of replacing all your spark plugs at the same time? Thanks.

@electronicsNmore 9 лет назад

ourlegacy The cold test is usually good enough(At least for me), but to be 100%, you should do the hot test. Replacing one faulty spark plug can make the engine run great again, but usually you would replace all the plugs at the same time. Thanks For Watching!

@harristhiru2495 9 лет назад

very good explanation

@electronicsNmore 9 лет назад

+Harris Thiru Thank You! Please share my channel with others and rate thumbs up.

@geraldmatuszewski2830 8 лет назад

New to. Your site. I like small engines to know some basic things on small engines. Watch zippo. And others learning. Have a weed eater one rear rider runs well for a problem rider

@ZJIGGA 8 лет назад

Excellent video! Thanks for posting!

@electronicsNmore 8 лет назад

You're welcome! Be sure to rate thumbs up, check out my other videos, and share.

@singleshot54 10 лет назад

I think u would be better off using a Megger to check the insulation between the center electrode and the body. The Megger uses very high voltage (a round 35 kv) with very low current around .1 micro Amp (.0000001). But all in all a very informative video.

@electronicsNmore 10 лет назад

Using a Megger would be the ultimate way to check for breakdown, but I have never had any problems using the DMM to rule out a spark plug as a problem. Thanks For Watching!

@PlayNRip 9 лет назад

Excellent and professional video. Thanks.

@Ray-ye1rj 7 лет назад

It would have been nice to see an example of a bad plug. I had a 74 Volkswagen Beetle for many years and at first I changed out plugs all the time but then I learned how to test and recap them and never found a bad plug. I forget how I tested them but it was with a multi meeter.

@electronicsNmore 7 лет назад

Thanks for watching Ray! Be sure to check out my automotive and other video playlists.

@georgekhaziran 8 лет назад

Nice job explaining all details, THANK YOU !

@electronicsNmore 8 лет назад

You're welcome. Be sure to share my channel with others, rate thumbs up, check out my other videos, and subscribe. Thank you!

@mrjohhhnnnyyy5797 10 лет назад

Nice tip. Thanks for uploading

@electronicsNmore 10 лет назад

Your Welcome.

@RaysLaughsAndLyrics 4 года назад

After checking resistance... if all is to spec. then : Clean plugs in ultrasonic cleaner.. gets buildup out of the insolator tunnel as well as the external surfaces.

@electronicsNmore 4 года назад

Yes, that's what I use. Thanks for watching Ray! Be sure to look over my extensive video playlists below for many other videos of interest to you, use supplied Amazon links to support my channel when making purchases(No added cost to you), and share links to my videos with many others on social networking sites. Stay safe ru-vid.complaylists

@jemar2121 7 лет назад

Very good explanation thanks.

@electronicsNmore 7 лет назад

Thanks for watching Jorge! Be sure to rate thumbs up, check out my video playlists, and share.

@munsif55 7 лет назад

well , the test meter , whikle checking ohms of center electrode, might not tell you about any crack in ceramic, with which centeral electrode is coated. But, when such a plug is installed, the powerfull current might jump through crack, and engine might misfire, or malfunction due to increasing heat.

@electronicsNmore 7 лет назад

Like I said many time before in this comment area, I've never had this method fail. You need to read my pinned comment too. :-)

@Mentorcase 10 лет назад

The temperature range is variable by the length of the insulation around the electrode tip to where it connects to the body and not the length of the top of the plug, the shorter the insulation the colder it will run also insulation break down is a common failure, tiny tracts of carbon impregnate the crack and will earth down to where the insulator connects to the plug body.

@electronicsNmore 10 лет назад

In the video I stated that a longer plug(longer ceramic insulator) is hotter, which is accurate. The rest you mentioned is accurate as well, which is why the high resistance 20 meg test is used. Thank For Watching.

@Approtechie 10 лет назад

electronicsNmore No, I think Mentorcase is right - you were pointing to the UPPER part of the ceramic insulator being longer, he's saying it's specifically the LOWER tip part having a longer exposed part that makes it a hotter plug. This latter part is the where the heat of combustion is concentrated and a longer exposed ceramic tip gets hotter and burns off the carbon better. The length of the upper ceramic part has nothing to do with it since it's above the metal heat sink part of the plug. See www.ngksparkplugs.com/tech_support/spark_plugs/p2.asp for example.

@electronicsNmore 10 лет назад

That is true, but the longer or shorter nose, usually corresponds to a longer/shorter insulator as well. :-). At least the plugs I have seen.

@kd5dvmkatdaddie114 6 лет назад

Thank you for the info.

@vermontjeff2535 6 лет назад

Great video. I learned a lot. Thanks

@electronicsNmore 6 лет назад

Glad you enjoyed the video! I have a lot of excellent videos on my channel that cover many different subjects, so be sure to check out my extensive video playlists for other videos of interest to you, rate thumbs up, and share my channel with others. Thank You

@txboyz241 9 лет назад

Awesome! Learn something new everyday. Thank you

@electronicsNmore 9 лет назад

Mike D You're welcome Mike. Nothing is 100%, but it sure does work well. Please share and rate Thumbs up. Thank You!

@ishtyaqali5164 5 лет назад

Excellent work buddy.

@electronicsNmore 5 лет назад

Thanks! Please share.

@thomasgronek6469 2 года назад

Many thanks for the presentation. More, and more frequently, resistor plugs are being used in small engines, Does that resistor further increase the spark's voltage across the terminals ?

@screwsnutsandbolts 6 лет назад

Excellent

@Ratlins9 5 лет назад

Thanks, learned something new.

@electronicsNmore 5 лет назад

You're welcome Ken! Be sure to rate thumbs up, look over my extensive video playlists for other great videos of interest to you, and most importantly SHARE my channel with others. Thank you

@nancyperryman419 5 лет назад

Indelible cajustment fix B.

@lilman1796 4 года назад

Thanks for the info on this ,very good ,great job ,keep up the great ☆☆☆☆☆ .

@electronicsNmore 4 года назад

Glad you enjoyed the video. Be sure to look over my extensive video playlists below for many other videos of interest to you, use supplied Amazon links to support my channel when making purchases(No added cost to you), and share links to my videos with many others on social networking sites. Thank you! ru-vid.complaylists