Cracking Heads! Our Subaru EJ-205 Heads To The Machine Shop

Подписаться 3,2 млн

Просмотров 147 тыс.

50% 1

We've finally managed to get into the machine shop with our 2002 Subaru WRX engine. The guys over at Thirlby's have been busy this summer, but a a little patience and a bag full of bagels have opened the door for us. Everything was smooth sailing with our block halves, but our heads gave us a little scare.
Thanks to our sponsor RockAuto.com. RockAuto.com is an auto parts retailer founded in 1999 by automotive engineers with two goals: Liberate information hidden behind the auto parts store counter (by listing all available parts, not just what one store stocks or one counter-person knows), and make auto parts affordable so vehicles of all ages can be kept reliable and fun to drive. Visit www.rockauto.com/?a=HG-YT-21Q3 to order auto parts online 24 hours a day, 7 days a week, and have them conveniently delivered to your door. Need help finding parts or placing an order? Visit our Help pages for further assistance!
Subscribe to our RU-vid channel for new videos every day! bit.ly/HagertyRU-vid
Visit our website for daily automotive news, cars stories, reviews, and opinion: www.hagerty.com/media
Stay up to date by signing up for our email newsletters here: www.hagerty.com/media/newslet...
Follow us on social media:
Facebook | / hagerty
Instagram | / hagerty
Twitter | / hagerty
If you love cars, you belong with us. Hagerty Drivers Club is the world’s largest community for automotive enthusiasts. Members enjoy valuable automotive discounts, exclusive events and experiences, roadside service created specifically for collector vehicles, and a subscription to the bimonthly Hagerty Drivers Club magazine. Join Hagerty Drivers Club here: www.hagerty.com/drivers-club
Like what you see? Watch our other series including:
Redline Rebuilds | Time-lapse engine rebuilds from start to finish bit.ly/RedlineRebuild
Barn Find Hunter | Tom Cotter searches the country for abandoned cars bit.ly/BarnFIndHunter
Jason Cammisa on the Icons | The definitive car review
bit.ly/JasonCammisaICONS
Revelations | Untold Stories About Automotive Legends with Jason Cammisa
bit.ly/JasonCammisaRevelations
Contact us:
Suggestions and feedback - videoquestions@hagerty.com
Press inquiries - press@hagerty.com
Partnership requests - partnerships@hagerty.com

Авто/Мото

Опубликовано:

21 авг 2022

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 284

@waynep343 Год назад

Driving on valve seals with a six or 12 point socket when I ran a cylinder head rebuilding department in the 90s. Was a nono. The flats can cut the edges of the seal boot. Causing excessive oil consumption later. I also lube my valve stems with staylube moly graphite assembly lube. With a pocket of that lube under the valve stem seal as a reservoir. Oil leaks out leaving a dry stem. I used to hot glue 3/8-16 nuts to the valve head to work with my old lapping spindle with a worn 9/16 socket wedged on instead of a vacuum cup. A magnet hot glued in the socket allowed me to lift the valve. I miss that job.

@izzmus Год назад

They all crack. I have a 200k mile EJ205 with four radial cracks at every spark plug hole, they are fine. Subaru has a raised area at the plug for combustion chamber shape reasons and this area runs a lot hotter because it is so far away from the water jackets, which is also why it is generally a non issue. It does look really scary though!

@TheGCJourney Год назад

I know this video is already 3 months old and so this comment won't be relevant to this specific build but could be for other viewers who want to do the same process: It's a real shame in my opinion going through ALL that hard work of disassembly, machining, honing, measuring and then reusing factory\worn parts. The minimum would be to upgrade to STI rods and pistons. I know a lot of Subaru owners who are actually waiting for an excuse to rebuild their engines and once the engine is opened for a refresh, it's the perfect time! In any case, I think the job you're doing is amazing and it's always inspiring to see someone walk into a project and learn new things as they go. Wonderful to see the attention to detail!

@davidkinasevych8439 Год назад

Never seen Davin less enthusiastic about a rebuild...

@joujimiichi1 Год назад

Brilliant idea using the drill press to press the valve springs in to assemble!

@georgepsilos7763 Год назад

For these cylinder blocks it is wise to use a torque plate because due to their small dimensions they ''flex''. Cylinder dimensions are different when cylinder head is torqued in place and when is taken off. Greetings from Greece

@pianopaul4069 Год назад

Greetings from Scotland. This machine shop is like the one local to me, in the respect they can literally fix anything that looks beyond its best. Incredible skill and machines. Nice to see another Subaru engine saved

@vettekid3326 Год назад

I had a 1986 Ford Taurus XL that I bought new with a 2.5 four cylinder. It started running bad and overheating at around 8K and the dealer determined it had a bad cylinder head and replaced it under warranty and again at about 15K and again at 20K. all had cracked across the valve seats thru to the water jacket. After the third head I traded it in on a new one with the 3.0 V6 and never had a problem with that engine in the next two Taurus's or a Ranger that had the same engine.

@user-cs1ne8gx9u Год назад

It wouldn't be a big deal for a good welder to fix the heads up. Problem is it's often cheaper to replace them than pay a skilled welder to fix up common parts.

@beachboardfan9544 Год назад

AFIK that block is going to be trash. Subi engines require torque plates for bore and hone operations.

@legacy2.5gx55 Год назад

Jup. They definetly need those!

@wingman358 Год назад

Built my ej205 with 3 or 4 cracks just like that in every spark plug hole. No issues 80k miles later

@Levibetz Год назад

I'm sure it'll be fine as in, it'll run and whatnot. But this is a demonstration in how not to machine a Subaru. These blocks are very light and thin, they distort with the head torque. So you need to bore and hone them with a torque plate on the head surface. This will have significant bore distortion once the heads are on and torqued up.

@user-BenDiab Год назад

You are very good in this field so don't be too late to share these videos we appreciate you so much man..

@dgc940 Год назад

Japanese bikes have used shimmed ohv for years and years the expensive part for a home shop is buying a shim assortment kit.

@iworkalone6140 Год назад

Thanks 👍 Real team of engineers. Scrupulosity, honestly and good explanation all the time. All the best to you!

@marlobreding7402 Год назад

You reminded me of the first Subaru engine that I rebuilt it was a 1970 FF1 4 cyl. It had plugs at the front and rear of the block to access the wrist pins. 40 years later I still have the tool I made from a bearing race puller.

@802Garage Год назад

Hope I get to drive an FF1 someday. Cool cars.

@rwp248 Год назад

Big tip. The 2jz has shim over bucket and most cams need to be re shimmed. The best and i mean BEST way i did this was spreadsheet. Measure what i pulled out and tickenes of the bucket to valve spot. tada excell does the math for you.

@Page404notfound Год назад

- Knock -knock! - Who's there? - 4th cylinder **Subaru's classics**

@mattgraham1983 Год назад

🤣😂🤣😂🤣😂 or Tick tick tick tick *I'm a time bomb*

@billabernathy1541 Год назад

What a labor intensive drill!! I guess it's a labor of love. Makes the US engines look somewhat simple. Thanks for sharing, and good luck!!

@michaelmathews295 Год назад

The valve adjustment system is similar to many motorcycle engines. As the valves seat the clearance will decrease, set the valves to the high end of the spec. Remember that a slappy valve is a happy valve.

@crxtodd16 Год назад

Outstanding work, as usual! Thanks for the video.

@bobcoats2708 Год назад

I admit, I know nothing about rebuilding engines. But it’s crazy to me that cracked heads are acceptable. I’d be less worried about whether it’s a problem now, and more concerned whether it would lead to a future problem. 🤷🏻‍♂️

@rickharper1497 Год назад

Those heads would not get used by me, good used heads or new correct rebuild practice, been do this stuff to long to start cutting corners! Davin you know better!!

@mattgraham1983 Год назад

Tracking down a set of new or uncracked STI heads will lead you down a very expencive and time consuming path.... as Davin said make do with what you have

@sooperman12 Год назад

It's not a passion project for them obviously. This is a click/view count project.

@tilenlini Год назад

I had a 50cc 2 stroke air cooled dirtbike, one time, just after a rebuild it blew the head gasket and me not knowing better removed the head without waiting for the engine to cool down, so I burned my fingers and dropped the head, it cracked in 2 straight down the middle, only the spark plug held the 2 halves together, replaced the new blown gasket with the old one it had before the rebuild and it ran as if that crack was never there.

@kentremendous5112 Год назад

I mean hey at the end of the day it’s a Subaru anyways, the heads, let alone the whole engine will be out in a month for new head gaskets, regardless of mileage, like clockwork, until the end of time.

@5tr41ghtGuy Год назад

With bucket shims you can compute what the ideal shim thickness should be based on the first feeler gauge measurement. In my experience, this works pretty much every time, unless you make a mistake with the math, or location of the shims..

@hoonaticbloggs5402 Год назад

Or the clearance is closed completely

@mostlyhondas7256 Год назад

I wish you guys or Thirlbys had a weekend crash course in this stuff. I could learn a lot from you guys. Ive never measured spring strength or used blue when lapping valves. Thanks for posting your work Davin!

@Peanutdenver Год назад

A Master Class on all variety of engines would be cool. You could download and refer back to it before you start a rebuild...always have it on tap to use on your computer.

@florianpiveteau2100 Год назад

Hello Davin, the cracks are also there on most audi 2.2 20v heads, greets from France.

@d-d-i Год назад

Now there's another car they could tackle at some point, late 80's Audi with 5-cyl engine.

@greasemonkeychris4128 Год назад

Ah yes the old bucket and shim lash adjustment.... that absolutely gets done in service by the book..... can you sense my sarcasm?

@stevemartegani Год назад

Did I not see a torque plate?

@PedroFTeixeira Год назад

Honing should be done with the block halfs torqued. Subaru specialists do the rebuild process a bit different from what you did, I hope you won't run into trouble.

@vilbenasvienuolis Год назад

How come honing has something to do with block tightening? Honing tool is free hand on a few universal joints, so it basicaly ads sufrace finish for oil film to hold on. And andy from subieperformace also does not join block halves for honing

@PedroFTeixeira Год назад

@@vilbenasvienuolis I'm not saying joining the two halves, torque plate is something to simulate the head.

@vilbenasvienuolis Год назад

@@PedroFTeixeira now i understand, sorry, my bad, u are right

@iamthatguytheonlyone Год назад

@@PedroFTeixeira true most people use torque plates to simulate the head and torque to spec.

@celshock6628 Год назад

I'm sure their work isnt "bad" but they do a lot of things as if its 1960 cuz thats probably how they've always done it.

@jannekmeissner772 Год назад

I would suggest getting the crack laser welded. It's usually quite cheap compared to a new head and the new weld is also going to rearrange the Atoms leading to a newly formed grid. It is probably going to crack fully if you leave it like that.

@justmemyselfandi5532 Год назад

It is hard to weld it properly to last, and yes crack will grow but there will be no catastrophic failures. If he will not run to much power and control exhaust temperatures it will live happy life for long time. Weld will also crack. It comes down to how hot chamber will be, how quickly and frequently temperature peeks are happening when pushing it and quality of the head when it was poured. If you can get uncracked head that is best way to go, meaning use this one until you find one that is not cracked. To find one without cracks is hard and expensive, and it is better to get used head without cracks, then new. Not sure if new are available at all.

@maddhatteroo7 Год назад

A new head in general for an EJ205, EJ255, or EJ257 is roughly $600 USD +/- and I would gladly spend that over having a crack repaired only to have to tear down the long block down the road. Subarus are finicky to begin with so do it right the first time or don't do it at all is what I believe in.

@DrDangerDave Год назад

WHERE'S THE TORQUE PLATE!?!?!

@JCWren Год назад

On my 2000 5S-FE head, after recutting the seats, the valves would be too tight. Rather than messing around with the additional time and cost of swapping spacers, they put the cams in, measured the error, then ground the top of the valves to adjust the height. Since they're pretty good at what they do, they only had to install and remove the cams twice (once to measure, then once to verify). What's annoying is the head bolts are under the cams, so I had to install and time the cams once I had the head on.

@hiltonmccowage9436 Год назад

Hi there. In Australia I remove the inserts weld the cracks retap and reinsert. Guarantees the insert stays in place especially in big horsepower engines.

@PrimephotoStudio Год назад

Great video!

@Ed_in_Md Год назад

I found it fascinating to see that he dressed the valve seats with the same rubber suction cup tool I used 50 years ago.

@ABeans07 Год назад

Classic EJ build quality.

@davidfarmer Год назад

From what I understand, subaru engines need to be assembled and torqued with a deck plate for boring.

@ol_smokey9370 Год назад

You're supposed to do that with all blocks I think, it doesn't get done most of the time. Some Ford engines they even specify which head you're supposed to torque down first.

@Sir.VicsMasher Год назад

They also need a proper align hone for the mains. Its super critical on a Subaru rebuild and the reason why so many rebuilds dont last as long as factory builds.

@FireFox705 Год назад

Love the Victor Reinz sticker on that toolbox :D

@unifreek7821 Год назад

@hagerty was pretty shocked that you guys didn’t use torque plates when boring out the engine. Then you proceeded to explain why cam timing is so important because the intake valves could crash into the exhaust valves which is physically impossible unless you broke a valve spring. Timing is important so that the valves don’t crash into the pistons

@devontemmen9541 Год назад

It is not impossible if the timing belt breaks they could definitely hit each other. Or if you really fucked up putting the timing belt on they could also hit each other and piston!

@floydblandston108 Год назад

Davin's contempt for this car is the only reason I'm watching... : D

@mikestewart7338 Год назад

I bet we never see another suburu on this channel.

@dirkmohrmann8960 Год назад

Same! And really how can you blame him. I don't get how this engine is considered legendary, it's a mess and full of problems

@floydblandston108 Год назад

@@dirkmohrmann8960 - its here because Rockauto discovered 30% of their sales are to WRX dorks who've blown up their 150k mile beaters and are now attempting full rebuilds in their driveway. : D

@g_force3857 Год назад

First year high school teacher “oil and water do not mix” Subaru “hold my beer”😁😁😁

@warusweims Год назад

The heads are fine. I've reused EJ20 heads with cracks before with zero issues. You've gone above and beyond by checking for leaks within the coolant passages. This is a practical build. It's an ej20. Just get it back on the road and driving. It's never going to be a torque monster.

@AmirPomen Год назад

Please do mil port and smoothen the oil galley for crank journal no.3 oil supply pathway... Thank me later by saving your no.2 & no.3 conrod Also port the 11mm oil pump outlet... Im serious.. not playing around

@Ozzy920 Год назад

no torque plate ?

@adamsearle4823 Год назад

Nice i like the song mt fuji too I usually work to that style of music

@gtrplr778 Год назад

Great idea to do a Subaru engine, I've never seen this type rebuilt before. Your attention to detail is quite impressive, and well taken. Certain techniques can only be learned from experience, you have a way of explaining them so anyone can benefit. Keep on posting, thanks.

@stevensawyer2489 Год назад

Proof to not rush perfection 👌. It's a wonderful piece of engineering in apon itself. Then with modes use doing it making it perfect for your, and shouldn't be rushed. Sry. Perfection takes time. Patience.

@kadesmith5634 Год назад

New valves, 020 overbore with pistons, new rings and bearings and new head bolts. All time and money down the drain, your heads are cracked. You put boost and heat into a cracked head, they don’t heal themselves. You mentioned a “stove bolt” head having cracks and going with it. A 75 year old straight six with 7.5 compression ratio and all cast iron is nothing like a turbo all aluminum four cylinder. You can still buy new casting from Subaru, probably less money then spent on manhours “rebuilding” them

@sparkplug0000 Год назад

Your comment “just like all stovebolts crack” now has me a little concerned about my stock 1941 Chevy 216!!!

@Sir.VicsMasher Год назад

I heard that a proper align hone for the mains is super critical to a Subaru rebuild and the reason why so many rebuilds dont last as long as factory builds.

@psychedelicphlegm6799 Год назад

An align hone seems least of concerns here considering the rest of the dodgy bodgy practises on this half arsed rebuild

@stevemadak6255 Год назад

Hey that's the great thing about aluminum heads. If they have any damage you can weld them then machine it back down. Seen it done. Done properly its hard to tell they were ever welded. There's still time. Go do it please.

@michaeljucius9509 Год назад

can't say I'm eager to get my work done in my shop. got an 86 silver spur with a mineral oil leak. (brake and suspension fluid)

@sam_the.patriot Год назад

Ah yes the joys of performing valve lash adjustments on DOHC engines! 🤦🏻‍♂️ this gives me nightmares and flashbacks to when I had to do the same job on my Yamaha R6.

@TaxedtoXXX Год назад

Thanks for sharing. How long was the heads in the shop?

@StrikerFin Год назад

I dont think you needed to remove the cams everytime to do lash. U could compress the valve with a tool and use a magnet to pull out the shim.

@Levibetz Год назад

You wouldn't ever do it with the engine in the car, just pull the cams. My car has 190k miles, zero lash adjustment. You set it and forget it.

@StrikerFin Год назад

@@Levibetz Ive done it with the engine in. So easy and quick. Its easier when u have a buddy that can compress the springs and u manage the magnets thou.

@kanneskaumglauben8026 Год назад

Laserweld and done. Look up Alpha Laser!

@sadlerbw9 Год назад

Even if you folks don’t end up doing it, I’d like to hear what options there are for dealing with a cracked head if throwing it away and finding another one isn’t an option. Also, thanks for seeing this build through. I’m sure it hasn’t gone to plan, but it is an interesting engine and I am enjoying this series. Even if it never makes it back into a car, I’m looking forward to seeing this one light up again on the test stand!

@OnlyARoadtripAway Год назад

Subi-Performance has figured out a solution - laser welding the head and machining back. They have a laser-welder and 5-ax-cnc tho...

@patx35 Год назад

For a shop that lacks a laser welder, they would remove the valve seats, then start grinding the crack until they find the end. Then they would fill the crack by TIG welding. After that, the head would be decked, machined for new valve seats, new valve job, and the ports and combustion chamber cleaned up. Very expensive

@celshock6628 Год назад

We toss them, but some of these heads are super hard to find because they all crack.

@sadlerbw9 Год назад

Thanks for the info folks!

@wackowacko8931 Год назад

The one thing I want to know is where Thrilby's purchased the sanding tapered cone that they used to take the edge off the top of the cylinders after boring and honing. I haven't been able to find one, and I've searched on and off for about a year for one of those.

@ianaugustine7569 Год назад

Mike Thirlby, the most serious man I know…or not…

@richindiankid Год назад

Spark plug cracks on the ej20 motor are normal, they haven't caused any issues for a large majority of people.

@Anderzander Год назад

I read that the when the plugs are in on these, they leave threads on the plug hole open to the combustion flame 🔥 (I.E the plug sits recessed) - which may cause the cracking?. When machining them - some folk therefore cut the plugs a bit deeper so it sits flush in the chamber.

@TheZohanLohan Год назад

They sit normally as long as you use the correct plugs, at least in these ej205 heads.

@Ruslan_Subarist Год назад

Nice✌️

@celshock6628 Год назад

There's no cooling passage between the spark plug and the valve seat, the issue will be the seat can fall out as it s no longer properly supported by the surrounding material. SBI recommends a .007 press fit. Put it on a flat clear plate with a rubber seal and pressurize the cylinder through the spark plug hole and see if that leaks. This would leak compression, not coolant. I don't know why they're lapping valves when they have a seat and guide machine. Not needed. Dykem the valve and spin it in the seat and check for contact, simple and fast.

@celshock6628 Год назад

Goodson makes 6,7, and 8 mm lock installers that work nicely most of the time and a lot faster.

@VWdude278 Год назад

My guts telling to scrap those heads. That crack that 8 threads in @ 8:56 would give me pause, especially with a booted motor.

@ernestvon4948 Год назад

I love your work.

@970357ers Год назад

Wouldn't a crack between valve seat and spark plug holes allow leakage on compression?

@moparedtn Год назад

Well, I'm glad Davin is enjoying himself, anyways...I admit, my interest in this engine is waning, however.

@schummiehugo Год назад

thats take time, bat he, it a nice job.

@bruceshepherd4655 Год назад

How would these cracks effect specs. on bolting theses heads down with internal cracks.

@paulb2948 Год назад

Didn't use a torque plate when doing the boring and honing? EJ case halves machine truer with a torque plate used.

@jonjessen Год назад

I hear the Fan showdowns soundtrack👍

@mikerieck306 Год назад

Every Subaru cylinder head I've seen milled is low in the middle.....every one of them. New valves is a no brainer.😉

@crxtodd16 Год назад

I wonder if it's because of the torque specs on the head bolts...? Middle two bolts are tighter than the outer 4.

@stevenpadilla4187 Год назад

I live just south of TC, I would literally drive up there and give you any info you'd ever need on that engine. It hurt seeing the pistons and rods coming out at the same time lol

@jrpark22000 Год назад

What is the step cut in the top of the bore for?

@jdmimprezal3753 Год назад

Cracked heads on ej205 is actually a common thing, same with vf39/48 turbos having a wastegate crack. Doesn’t really affect performance

@miltonmaxcruz2014 Год назад

Está que dando bueno 👍💥🇵🇷

@TheRepairman1978 Год назад

Welcome to euro cars 😁😁 shims and buckets

@Valentin359 Год назад

Why you didn't welded these cracks? For example there were 5 cracks in head of my super old vr6 engine, but they all were welded without any problems.

@drewmurray2583 Год назад

Hahahaha you guys still lap valves by hand!!!!!?? When I was shown the use a drill technique by some Croatian fellas I couldn't believe I wasted so much time before. Use a drill, it works!

@user-we2wb2yy2y Год назад

Нравится мне эти ребята!

@TheKuzmovka Год назад

It's a shame there are no performance parts going in here. With all of the Subaru specialists out there especially where these guys operate I would have expected a closed deck build, torque plates, forged pistons and rods and good bearings. That engine could have been a monster. Instead it's being set up for failure.

@nzuncovered1845 Год назад

That would be a completely different engine though. There is not much point in adding heaps of power to a non Sti engine, It's ok to rebuild this one, but I would have liked to have seen a torque plate being used at least, the machining looks sub par

@Hanschepu Год назад

@@nzuncovered1845 I think their machining is fine, its just that they are clearly not used to, or experts on Subarus flimsy engines, and you are totally correct, when boring/honing a torque plate wouldve been needed to get the best end result. With that said, I believe this engine is not meant to make any more power than oem, its meant to be rebuilt and keep it as a nice, stock, fresh engine that will be used accordingly. BUT, sadly I dont trust rebuilt subaru engines, imo when the oem goes to the shitter, as they always do, its best just to get a block from IAG and have peace of mind.

@nzuncovered1845 Год назад

@@Hanschepu Yeah I would if was rich enough for an IAG block, that would be the dream. EJ's aren't too bad it depends how they have been treated and if it has been serviced correctly. I had a EJ20G turbo in a GF8 WRX which had 280,000km on it, it ran hard with a VF30 turbo, fujitsubo 3inch exhaust, Perrin uppipe, upgrade I/C and a few other mods, until it was stolen from outside my house and crashed. When I got car back from impound I pulled apart the engine because it got broken cam pullies in the crash, when we pulled the heads my mechanic said it showed no signs of ever been taken apart with OG head gasket, the heads and pistons/cams etc all looked new. My view is EJ20s are okay if they are a JDM engine and EJ25s are the ones to avoid due to less room between cylinders, not as strong as EJ20. The EJ207 engine is the one to get as it has semi closed block, also original Legacy RS and WRX STi Versions 1 and 2

@stevensawyer2489 Год назад

Wow, fuff to begin with. Nice work

@shanerorko8076 Год назад

I honestly didn't even realise how prone these heads are to cracking. I've done heaps of head gaskets on these, and I just walk them across to the machine shop. We always get the head's pressure tested on any engine.

@whiplashmachine Год назад

Done hundreds of these myself in automotive machine shops. Rarely see one not cracked. Never had one leak during pressure testing and never had one come back.

@No0bzs Год назад

Could it have been an option to weld the crack, retap the treads and the valves seat??? I mean you probably went over this option so why you chose not to go with that solution???

@victoroneill7924 Год назад

Are those heads forged aluminum that can be welded? If they are why not remove the valve seats, weld up the cracks and re-thread the spark plug holes?

@pb3033 Год назад

I agree by measure of precaution, could those cracks be injected with some kind of material ?

@SheriffDawson1 Год назад

Still may be able to save the block if longevity is a concern, but it'll still run. May knock and burn oil.

@p0lytube Год назад

why use a hone over a lathe to bore the cylinders?

@Horacio-Lorenzo Год назад

Hi David, wouldn't it have been convenient to repair the fissure due to the risk of a cap falling out?I send you a big hug and blessings for you and your family from Buenos Aires Argentina

@user-di4bi4mr8f Год назад

Вот такой формат лучше чем был. Удивляюсь его знаниям и его пряморукостью.

@judechopper Год назад

All that work, they are still cracked? Even though they don't leak yet!

@Bertgarrpin Год назад

What's that blue type of grease you used before putting stem seals? I've never seen that they are necessary, but I need to change mines on my Miata, and it would be very interesting to know that. Keep the work on!!

@GeoffPesos Год назад

Marking compound. It's what they use to check for high spots when they lapp the valves.

@dannyrivas5125 Год назад

You might want to check the Crank bore I heard they change ever time you take the block apart when putting it back together the bore is not true any more and has to be line honed

@dannyrivas5125 Год назад

Nothing but damn scammers

@jeffarnim Год назад

Do I need to make the mod to my Ascent?

@jimclarke1108 Год назад

Hydraulic lifters thanks😁

@EricMollman Год назад

Here’s a formula to make setting your valve lash easier. Measured clearance + existing shim thickness = x X- target clearance= shim thickness needed.

@hoonaticbloggs5402 Год назад

Yea, doesn’t work if the clearance has closed up

@ChumaxD Год назад

It is quite common to see hairlines on this model of cylinder head.

@andhag Год назад

Could you do one of those solid thread repair inserts on the spark plug hole or would that just make things worse?

@wackowacko8931 Год назад

It wouldn't really do anything. Helicoil won't stop a cylinder pressure leak. It would be wiser to weld the crack with a Tig machine and re-cut the threads.

@skylinefever Год назад

6:09 not a good day at all. That is why you must know if your car has a timing belt. If it has one, know when to replace. Nobody in my family knew, until a belt went boom in 1994. It was in mom's 1985 Nissan Maxima. I felt very bad to see that car gone. Ever since I could legally drive, I looked for timing chain engines when buying a car. My dad simply refuses to buy anything with a timing belt.