What Causes Diesel Engine Ticking, Clicking, Tapping, and Knocking?

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If your engine is ticking, tapping, clicking, or knocking, it might mean serious engine damage, but it could also be something small that can be repaired before serious damage occurs. This video talks about the normal causes of ticking, tapping, clicking, and knocking in Diesel Engines.

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20 ноя 2016

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Комментарии : 460

@DowntownDeuce2 6 лет назад

This guy's sharp- not your average parts changer but a true craftsman with real diagnostic skills

@skunkhollow1 7 лет назад

Thanks for the quality video! Its great to see smaller channels stepping up and creating high quality content! I hope your channel grows big and you can inform a lot of people!

@AdeptApe 7 лет назад

+TR7 TRIUMPH Thank you, the quality of my videos has improved over time compared to my older ones. I hope the channel grows too, thanks for commenting.

@bdzelda5849 6 лет назад

Great vid, Mate. Been watching engines clips all day today b4 I start my new job as a Engine Builder tomorrow. Subscribed. Greetings from Australia.

@mohabatkhanmalak1161 5 лет назад

As a young man back in the early 80's I did a diploma level course in Auto Mechanics, and although I did not work as a mechanic as a career the knowledge I garnered has come in handy. Watching your video helps in understanding diesels, especially the current engines. Thank you and thumbs up!

@matteo_syd7271 Год назад

Nobody cares.. We're hear for answers

@christianeidsmoe4772 6 лет назад

So that's why the crank case pressure was high, leaking exhaust into the engine... thanks for the vid, bro

@zshredclh10 7 лет назад

Adept Ape While I am not a big fan of poetry, Poe's "The Raven" is one of the best poems I have ever read. Good reference to it.

@AdeptApe 7 лет назад

+Chase Hewett Thank you.

@codythomas247 7 лет назад

Awesome videos. Learning so much can't wait to start my career as mechanic !

@devodar2579 6 лет назад

Thanks for the amazing overview. Very professional. you really know your stuff! Thank you.

@jeffryblackmon4846 7 лет назад

VERY WELL PRESENTED. THANKS.

@austinr09 7 лет назад

Been around diesels my whole life. They make lots of noises and 9 out of 10 people would never think they had an issue for slight knocks and ticks. If you tear into a diesel that's been used odds are you will always find something wrong with it. Doesn't mean it won't last another 10 years that way.

@michaelmedina8304 5 лет назад

austinr09 people like you keep me afloat i always get bummed when people say somethings wrong with my international but ive had the motherfucker for a year and everythings been good just regular maintenance and wear and tear thank you for your words of inspiration

@jmh4ggg 5 лет назад

Michael Medina Same here...my cat sounds good but theres a tapping sound...you get paranoid from every little sound when it's your truck...nonetheless i'm still saving for a full rebuild...just in case

@trollstar5418 2 года назад

Go get a tune up or valve adjustment fixed mine

@TheNakedQuack Год назад

@@jmh4ggg wise move. Doing the same. 3 years later did the rebuild come to fruition or were your worries for nothing?

@jmh4ggg Год назад

@@TheNakedQuack Lol it's crazy that i wrote that 3 years ago. Yeah i did get it rebuilt, it started pushing coolant out of the reservoir, the head gasket was compromised, but the tapping was nothing to be concerned about. Its been about 2 years since the rebuild, i'll never go to a 3rd party for expensive work like this again. The front main seal has been leaking oil, and I forgot what its called, but my cold air intake module needs to be replaced. This has been a problem since right after the rebuild, they messed it up. However since i still have all new parts in my engine, im just gonna have them replace those air intake modules, replace the front main seal, and replace the head gasket and spacer plate and be done with it. I'm hoping to get all that done by march.

@omchunter6988 7 лет назад

Hey Adept Ape I love your videos. I'm a cat large engine technician and have only been doing this a few years now. I find your videos educational and interesting. Thanks for putting them up!

@omchunter6988 7 лет назад

Adept Ape It's large construction and mining. We get everything from 3406 up to 3516.

@arnoldw9112 7 лет назад

im from holland and im learning on school for diesel engines, i work at a cat dealer. and i got to say i find you videos very helpfull to understand the engines better and to do my job better. I want to thank you alot, ive subbed to you. please make more interesting vids! greatings from holland

@AdeptApe 7 лет назад

+Arnold W Thank you for subscribing.

@carlosricart931 Год назад

POE The Raven, was a great introduction to the subject of discussion. Thank you. Not only did you educated me on Diesel but you quoted my favorite Poet.

@Therepubliclimited 3 года назад

You know your stuff. Thank you for being a diesel tradesman.

@joellagpacan9340 7 лет назад

Another good topic on this video. A good diesel mechanic can distinguish what noise is normal and what noise is not. I think the older mechanical engines were a lot noisier because of the injector pump, First time I heard of a leak outa exhaust valve seal like on your video, nice to see it. Keep up the work and Happy Thanksgiving.

@AdeptApe 7 лет назад

+Joel Lagpacan Thank you Joel. It takes awhile to hear what a "weird noise" is sometimes on a Diesel and every model sounds different. Happy Thanksgiving yourself.

@IntradeMotors 7 лет назад

Joel Lagpacan older Diesel are more noisy because of less controlled combustion . A old Diesel had 1 injection a modern car Diesel up to 12 for better burn more power and loads less noise . there is a upside and downside to electronics.

@ColinQuinnuniverse 6 лет назад

nice opener and great delivery. two thumbs up.

@emildekoven4872 6 лет назад

Great analysis.....with examples; your choice of categories was esp. helpful....!

@nb117 7 лет назад

The Raven..Good to know other mechanics read old stuff too...

@jorgefonseca9225 6 лет назад

on last generation of the truck-drivers no one care about the noise come from engine!! hi rpm music loud inside cabin and full gas when the engine stopped YES they discover something is happened!! great vedeo mate good explain i apreciate cheers from a portugues truck driver

@briansmobile1 7 лет назад

I don't get to work on Cat's much- thanks for the insights and great visuals!

@AdeptApe 7 лет назад

+briansmobile1 Thanks for saying so, hey 183,000 subscribers! I'm jealous, I'm going for 10,000.

@helidodge 7 лет назад

+Adept Ape Wow you had Brian watch and comment on one of your videos!! You must be doing something right. Thanks for posting this video.

@briansmobile1 6 лет назад

Hey, you passed it! Congratulations!

@tfrench125 3 года назад

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@timmensch3601 7 лет назад

great video man i really like your videos i just got a job as a truck mechanic and i went to school (wyotech) for hd diesel but it was 5 years ago and your videos really help with me remebering all the stuff i learned in school please keep the bad ass content coming

@AdeptApe 7 лет назад

+timmensch Thank you for saying so. I'll keep making if people keep watching them.

@grigorirasputin996 7 лет назад

You're a good teacher, I really enjoyed the video. Thanks for posting it.

@AdeptApe 7 лет назад

+Boomer Valley Thanks for watching.

@frankswain9483 7 лет назад

Just love Buddy and Piper! And, yes, the vid information, too! Thanks much!

@AdeptApe 7 лет назад

+Frank Swain Thanks.

@freesaxon6835 7 лет назад

Great informative video

@AdeptApe 7 лет назад

+Free Saxon Thank you.

@michaelwsudziarski6929 7 лет назад

I Really enjoy your videos awesome tips ! Thanks

@segarza 7 лет назад

Top notch video Mr Ape! Top notch!

@AdeptApe 7 лет назад

+segarza Thank you.

@timsharpe3498 7 лет назад

I used to work on Diesels but I always considered myself to be a bit tone deaf when it came to their engine noises. We had a huge fleet of crappy Ford CT 8000s with 3208 Cat power and they kept us all pretty busy. My favorite sounding Cat engine was the 3116. They were gutless but they sounded like a sewing machine compared to most diesels.

@kutunuikunikuni1301 7 лет назад

Tim Sharpe

@StickNclutch 6 лет назад

Took me a while to find it but this video answers my questions

@MrHeadshot1982 7 лет назад

Thanks for the post keep up the good work.

@dean-gm1lg 5 лет назад

One way to check for fuel detonation noises as opposed to mechanical noises is to run the vehicle down a long decent and turn fuel / ignition off then listen if noise stays or diapears obviously be careful with power steering and stearing lock etc

@islamraouf1856 6 лет назад

Thanks for sharing the information buddy, 2 thumbs up...

@Tinfoilhelmets 7 лет назад

A mechanic versed in Edgar Allan Poe. Impressive!

@AdeptApe 7 лет назад

+Tinfoil Helmet All those books I read finally paid off!

@gelotilza3788 7 лет назад

Adept Ape I'm looking to become a diesel mechanic here in illinois any suggestions on good schools here....thx

@jamescooper1030 7 лет назад

do you work on Detroit diesels & Cummins?

@captainchaos3053 6 лет назад

Gelo Tilza Don't do it, get a good job.

@glennso47 6 лет назад

Tinfoil Helmet Maybe he was working between The Pit And The Pendulum!😲

@MrTheHillfolk 7 лет назад

To find the ticking noise, just brick the pedal and go get a cuppa cawfee and check out the hot receptionist on the way back, and see what ya got. Rinse and repeat until it stops running and look for the hole in the engine.

@TheBlabla1996 7 лет назад

Or turn up the radio volume :)

@farerse 7 лет назад

that sucks

@dragracefanatic660m9 7 лет назад

MrTheHillfolk Awesome man!

@delroymcfarlane5957 5 лет назад

+aww

@josevillegas9029 4 года назад

Great technique man!

@johnjohnt1989 7 лет назад

I gotta say I really enjoy your videos and they have helped me a lot , I go to school at uti for diesel right now I have only 4 more months left and I've talked to Quinn cat and they want to go to their school and hopefully one day I can work with you

@AdeptApe 7 лет назад

+Johnathen Thompson Thanks for watching them. If you work for a Cat dealer perhaps one day out paths will cross. I get a lot of comments from people in Diesel school and it's great to hear I'm watched by the younger guys.

@jimmyb611 6 лет назад

Thank you for the info bro great content

@emmanuelestopin7136 5 лет назад

This vidio help me a lot i just rebuilt my engine and have taping sounds dont know what went wrong. now i know its the injector black smoke and taping sounds my be I had it advance to much thank you so much love the vidio

@missFindlesticks 4 года назад

Wow thank you, I have black soot around one of the pipes leading from the engine at the back, I can smell exhaust fumes directly from the engine and it’s noisy with ticking, at least I have a better idea of what it could be

@Thetrucky69 6 лет назад

Excellent information.

@OscarFlores-gl8gn 2 года назад

Awesome awesome video and information on what to look for.

@eatmyskids 7 лет назад

Well, as you pointed out, there is a huge difference between rocker arm or lifter noise, and bearing noise. Surprising people do not get on these as soon in passenger car engines as they do in commercial engines. My friend ask me, I told her, your engine is off time, you need to replace the timing belt now. It was a 4 vlve per cylinder OHC Ford inline 4. I told her that is an interference engine, that car is not worth more than a couple thousand running. If that belt goes full bad, your valves will hit the pistons, and that's a full overhaul, more than you car is worth. Two weeks later, she got an estimate for $3400. The original estimate to replace the belt, $200. She had the 2 bucks, didn't want t spend it.

@glennso47 7 лет назад

If the ticking sound comes from the dashboard you may have misplaced your watch.

@morganrussman 6 лет назад

Glenn Lego XD

@glennso47 6 лет назад

morgan russman The sounds Diesel engines make reminded me of the government program DACA DACA DACA DACA.

@johngritman4840 6 лет назад

Thanks again. Nice looking dogs.

@cesarvelasquez9436 4 года назад

I just had an overhead done on my truck and I started hearing a ticking sound, any idea why? Thank any suggestions will be well appreciated.

@111Omalley 7 лет назад

Good info! Thanks

@alastairnanu549 3 месяца назад

😊 great work out

@don7406 6 лет назад

Edgar Allen Poe The Raven. Adept Ape reciting poetry. Respect.

@mariothemechanic 6 лет назад

Great video brother

@TheDepreys 7 лет назад

i have some blow by on my 1996 m11 cummings Volvo.. is there anything i can put in the oil to help it? i only put 3k miles a year on this truck as its for my rv.. rv hauler any help would be great thanks love your videos

@AdeptApe 7 лет назад

+The Deprey's Not really anything that'll stop blowby by putting it in the oil. If you are running thinner oil than recommended that can increase the blowby. If you are concerned about just the blowby, but the engine runs fine there are aftermarket blowby filters that you can add on that will vent the oil back to the engine and keep most of the oil mist off your RV or tow vehicle.

@dennisdecosta4480 5 лет назад

In joy this video thanks the info

@llamafun5 4 года назад

"Long time listener, first time caller" ignore the old user name from eons ago. Just did injector sleeves, injectors, and overhead on a 3126B. When I first started it I had a valve train noise that seemed odd, ran with the cover off and noticed what seems like excessive side to side movement on the cylinder two rocker arms. During a road test I heard some "clackity" that's more than normal from all of the other 3126's I've worked on and driven. I have some videos of the arms with the engine running and movement of the arms with the engine off. If possible I'd email them to you just to get your opinion of what my problem may be. I'd greatly appreciate it! Let me know your thoughts if you can. Thanks for the awesome content!

@markparker1391 7 лет назад

I am your 6001 subscriber!

@AdeptApe 7 лет назад

+MaxMerc11 one second sooner and you would have been 6,000! My goal was to get to 10,000 I'll be there soon, thanks for subscribing!

@markparker1391 7 лет назад

No problem keep up the content!

@gmeast 7 лет назад

You are really good!

@dwes8098 7 лет назад

remember too that piston slap is normal to some extent upon cold start. that will cause knocking. this is just due to an out of round condition until all the components warm up. this is especially prevalent on older all-mechanical engines.

@kutunuikunikuni1301 7 лет назад

d wes

@PatrickBaptist 6 лет назад

And when that happens you just need to rev it to the redline and roll coal till warmed up.... LOL, yeah I love how mad my 7.3 sounds in the cold.

@MechRider89 7 лет назад

Man I miss working on the C-series Cats C14's were my favourite to work on. Turbo's and oil coolers were my forte.

@AdeptApe 7 лет назад

+MechRider89 A C14?

@DonDimi0413 6 лет назад

Hi! Great vids man. I have a 3.0 turbodiesel light duty pickup truck that has what sounds like the timing chain rubbing against something. The strange thing is that 1: it happens once the engine is under « heavy » load ( going uphill)and 2: this truck only has 30k kilometers on it. Any ideas? I’m thinking the chain tensioner is shot.

@gogogeedus 4 года назад

you need to determine weather you have a diesel knock or something more serious, if it is a knock disassemble the engine and take measurements of all the bearing journals after finding the damage it is very critical to determine what caused it or you will be repeating the process more than once. diesel knock will not damage an engine unless a bad injector creates a hydraulic lock between the piston and head, this can cause bent crankshafts and con rods.

@CampervanAdventures 5 лет назад

My diesel was over fueling for the best part of 12 months due to a bad map.....that’s sorted now but it still smoking how long will it take to stop do you think in a Vw T5 Transporter Cheers Keep the video’s coming mate very informative

@snoopy81 4 года назад

Great video, thx

@kudamuyun3173 4 года назад

Mine 2.5 Toyota D4D engine excessive tapping sound. I found thats engine oil also slowly reduced the volume. I found a bit oily on EGR assembly and also at the intake manifold. Power doesnt affected and still running powerful during uphill. Tks for you info

@MrT9822 5 лет назад

Would a fuel knock be considered detonation? I know in gas engines when 2 flame fronts meet in the combustion chamber it can make a knocking sound as well as being able to cause catastrophic engine failure....so would an injector be causing a "fuel knock" because of this effect?

@fearofchicke 4 года назад

Tristan Rodriguez I often wondered this too, but I’ve discerned that fuel knock is the proper function of a diesel.

@MrT9822 4 года назад

@@fearofchicke well detention is not proper function of any engine lol but diesels do tend to have a different combustion sound

@JohnmillerPowerlifting 7 лет назад

great info man

@AdeptApe 7 лет назад

+John Miller (John Miller Lifting) Thank you.

@truckin3799 6 лет назад

Hello adept ape, love the videos very good information!What do you think a rattle/knock would be in the cylinder 6 area? (2004 cat c15 mbn)It only does it at idle n light throttle, not a speck of metal in oil filter and it changes pitch with the throttle but when cruising on the highway it doesn’t do it and no smoke at all just a bit of black when up shifting. I had valve cover off and nothing is broken or loose. The noise sounds like it’s coming from the combustion chamber area

@jmh4ggg 5 лет назад

Chris Eee Same exact thing with my mxs accert...no smoke, except light black smoke when pulling, only at idle and light throttle, goes away at highway speed...does yours still do it? Or did you find out the problem? (If there is one)

@kcornett 5 лет назад

Now in know mechanic but my bxs does the same thing......I was told it's a fuel knock and it's no big deal..... mine has done it for 800000 miles

@FixItStupid 6 лет назад

Thank YOU !

@CheddarCheeseBandit 3 года назад

Thanks for the good video

@Peteraddavideo Год назад

I like your intro of " The Raven" appropriate for the topic.

@AdeptApe Год назад

Thank you.

@jhsevs 2 года назад

I have blowby at idle, only at idle, could this also be due to valve seals leaking? There's lots of sounds too but it's hard for me to identify the sounds

@jonathanschomer6853 5 лет назад

I was wondering if you do transmission rebuilds? I am guessing for big trucks most commonly they are Allison transmissions? I am curious.

@JoshKilen 7 лет назад

thanks for the info

@oldbones3092 6 лет назад

Great channel! I just discovered it. The C12 in the truck I drive at my day job developed a click, then clack, then knock, then bang. All within 1/2 mile. Ended up being the wrist pin in number 2. The teflon keeper for the wrist pin decided it didn't like being there any longer. Took out the piston (obviously), sleeve/liner, and took a hunk out of the block where the liner seals up. Block is junk. Employer is going the Platinum rebuild route. Cat dealership said they don't use the teflon keepers now?

@AdeptApe 6 лет назад

+oldbones I know the little pucks you are taking about. I haven't disassembled a new C12 piston yet to check, because they get installed with the liner. I thought those puck designs were kinda weird.

@banditftw4q2 6 лет назад

S&S pistons(high performance) for Harleys have those "buttons" as an alternative to the circlips that have worked so well. I've taken apart a few top-ends that others have used the buttons in to find scoring (sometimes severe) from debris trapped and embedded between the buttons & cyl liner. Somebody's idea for a "floating" wrist pin didn't work out to well no matter what motor it was in...

@pinoymovieshub9185 5 лет назад

How about when i load my excavator and my engine rpm was going down and the sound of my muffler is like a bubbles then i stop to load the hydraulic and after 10sec. May engine rpm going normal.

@mladenlakovic6272 5 лет назад

I have a 2014 D13 volvo and its ticking just like the first example but when I use my engine brake it goes away completely. Do you have any idea what that might be? Thanks. Very good content btw you got a sub.

@dewaynemiguel5695 5 лет назад

Great video's

@bretterry1347 6 лет назад

Thank you.

@collincondrey4444 6 лет назад

Hello! I need your plethora of knowledge lol, if you are willing of course. Was curious if Cat 3126s are prone to broken piston rings??? 8000+ hours 176k miles in a school bus? White smoke for 10 min from cyl 4 exhaust port was wet replaced #4 injector with same results

@forestMog 6 лет назад

My '73 Unimog 406 has a Mercedes OM352 which had 6700 hours when I bought it several years ago. It now has 7200 hours. For the past 50 hours the engine would not start after sitting for more than a day without bleeding and priming. I recently added an electric pump which solved the starting problem but it gradually developed a knock. Today after an hours work, it was sitting at idle, the knock then got louder and I saw a huge billow of white smoke from the exhaust for a minute or two and it died. I waited a few minutes and it started right up with electric pump off and I got no smoke. It is a fair amount of work to remove the valve cover because I have to lift front of the cab. How would I check the injectors?

@aminedest9929 5 лет назад

thank you !

@adrianjos04 3 года назад

Great video..... I recently cracked the head on a overhead cam toyota ln106 3L Diesel engine. I bought a brand new complete head ( shimmed valves already set to correct clearence ) and fitted it. I lined all timing marks properly when fitting yhe new timing belt and rolled the engine over 4 times by hand to check everything was correct. From the first moment I started the motor after fitting the new head ( with new head gasket and seal kit ).....there is a ticking sound that was never in the in the engine before the new head. What could this be ? It seems to be more noticible some days and not others. It seems also to go away at higher revs.

@Ryan-po6xi 5 лет назад

My c13 is frustrating me at the moment. Got a check engine light that just started it only shows under load once I shut down and restart it goes away. That I assume is oil pressure sensor for dpf.

@mikekahl5609 4 года назад

I guess that's why I've heard them called Clackapiller engines.

@stefanwosinsky1935 Год назад

My 1961 fordson dexta has a little knock to her, but the valves do need some adjusting. Crankcase pressure is also present, but so far isn’t causing issues. I’m hoping that’ll fix it, if not i have a problem

@johum187 5 лет назад

Im about to do an inframe on my acert mxs engine. What is needed to convert it to a 6nz have you done one? Mechanic said all its needed is change manifold and turbo what do you think?

@flubyux2 6 лет назад

Great insight. I have an 06 Cummins 5.9 with a tap or clack at idle. It's not heavy like a rod knock and I've got virtually no blow by. I've already replaced the injectors, lashed the valves, torqued the crossover tubes, rail pressure is in spec, fass 150 but still makes a light tapping. I can't detect an exhaust leak. It almost sounds like two cyl in sequence. It's more of a *kachack kachack* as if it's two events. Oil "appears" metal free. Hasn't developed a rod knock. I'm not sure where to look next. Ideas?

@WildBill541 Год назад

I have the same issue, did you ever figure it out?

@kjay9496 3 года назад

bless you man

@dirtmerc8511 4 года назад

I have a 3406B CAT motor that has a slapping noise coming from the front drivers side in the timing cover. Good oil pressure and eliminated all outer accessories. Valves looked fine. Any ideas?

@alicestoneking2559 6 лет назад

Is there an alignment between the oilers and the bolts that hold them in place. 3406e.

@GustavoMartinez-sm6iv 3 года назад

Very instructed

@jacobramirez4586 6 лет назад

Ok Edgar Allen NO.... Good video, thanks.

@StratmanJerry 6 лет назад

Hey man Poe is the shit. If he were around today he'd own a diesel

@AdeptApe 6 лет назад

+jasalmon21 Lol, I'm not sure if most artsy poets would be driving a 5.9 Cummins and rolling coal at stoplights, but it is a funny image.

@MrGGPRI 7 лет назад

"pull your oil filter, cut it open and look for metal" Don't forget to use the special filter cutting tool; if a hacksaw is used, you WILL find lots of metal particles...

@AdeptApe 6 лет назад

+MrGGPRI Yes, a valid point, if you cut it with a cut off wheel or a hack saw you'll have small metal pieces in the filter.

@chanklychankly8857 6 лет назад

Hello Im new to the channel. I dont know about diesel engines alot. Just purchased a tow truck with a 3126 engine. The temperature is going up. It was running fine. My question is. Can I run the engine with the termostats removed? Thanks for your help.

@jimflynn7551 7 лет назад

thank you

@JaykAnderson 6 лет назад

very informative and interesting video.

@brentsmith5647 Год назад

Brilliant video thank u 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

@dr.thumbtzen6464 4 года назад

Good stuff

@fm1224 7 лет назад

Diesel engine noises are like the sands of the sea and a lot of times very hard to put your finger on...fuel / injector knock is a tough one to figure out. I believe even the fuel it's self with any additives is gonna make it fire differently, thus some kind of noise. Think of a guitar string out of tune, what made it go out, the string stretching or maybe humidity is making the whole instrument swell and contract. Don't know if this is a good explanation, but the point is, very hard to diagnose.

@asanoen1777 6 лет назад

HI so if there is black smoke soot on the flange of the turbo on the exit flange is that an easy fix by tighting the flange ?

@SepticSystem 2 года назад

thanks. we just did a head gasket and cylinder head on our 304cr with S4L2 mitsubishi diesel in it. well put new injectors tomorrow. tons of white smoke