Piston Ring Gap - the importance of

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Piston Ring Gap - the importance of

Рет қаралды 933,132

Dirty Garage Guy

Күн бұрын

Check yourself before you fuck your engine!

Пікірлер: 293

@ianjones7740 4 жыл бұрын

45 years ago I put new rings in my 500cc single cylinder AJS. That night I went for a ride along Gilchrist Ave Herston (way before the Inner City Bypass was constructed). It was a cool night and I gave it a bit of throttle and within 15 seconds the motor started going slower and slower. I declutched and the motor immediately stopped. The motor was seized. Could not turn it over. After about 5 minutes it unseized and I could turn it over but it was still 'firm' in the turning. I waited until it spun freely and gently rode it home. The next day I took the head and cylinder off and filed the rings down (I don't remember how much). I reassembled the motor and did not have a problem after that. Yes, ring gap is important.

@funv3188 2 жыл бұрын

Cool story 👍

@yogi2.057 6 жыл бұрын

Spot-on Matt. The importance of having the correct ring gap is indeed critical for smooth running pistons along with having rings gaps opposed 180 degrees.

@1495978707 5 жыл бұрын

My two stroke has pins that register in the ring gap to keep the rings in a specific orientation, and they are less than 90 degrees apart, but I’m pretty sure that this is because of the porting. Wouldn’t want the gap to be hitting port edges

@needmoreboost6369 8 ай бұрын

@@1495978707that’s why exactly! it’s the port’s! On a 4 stroke though it’s not nearly as important,a lot of engines they actually rotate! But typically face the gap’s away off the load side and away from the exhaust valve as that being a hotter area is usually the start point of pre ignition in most engines!

@michaelxdrift 2 жыл бұрын

I didn't understand why ring gaps were so important when it comes to engines, now it's all too clear. Thank you my friend.

@arose460 6 жыл бұрын

I enjoy how simple yet in-depth you go into the topic.

@Halo2prime 6 жыл бұрын

Excellent video! I've seen rings pop the tops of pistons off, from having the gaps close up. This is important stuff.

@eliancamilo9102 3 жыл бұрын

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@jaggertadeo7276 3 жыл бұрын

@Elian Camilo Instablaster ;)

@eliancamilo9102 3 жыл бұрын

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@eliancamilo9102 3 жыл бұрын

@Jagger Tadeo it did the trick and I now got access to my account again. Im so happy! Thanks so much you saved my account :D

@jaggertadeo7276 3 жыл бұрын

@Elian Camilo glad I could help xD

@footballCartoon91 4 жыл бұрын

I dont know whether you are an engineer or not but i love how you explain this topic

@hellishgrin4604 4 жыл бұрын

Mind the gap! I just replace them with rubber O-rings! Makes a nice suctiony “pop” when they’re removed!

@stihlhead1 3 жыл бұрын

In depth and easy to understand. Bravo sir!

@Joe30pack 6 жыл бұрын

Another sub by power of the AvE wave. Congrats on the shout out, it'll be huge.

@dirtygarageguy 6 жыл бұрын

Cheers dude and welcome to the channel

@clydeperrine2959 6 жыл бұрын

AvE sent me too. I see why now. Good stuff to know when working with piston and rings. Ya always "mind your gaps", the old timers would say. You just expertly explained why.

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@thomasphilyaw8593 7 жыл бұрын

Funny how you linked Eric the Car Guy. He's great info for cars and you're the best motorcycle "scientist" out there. Addicted to your videos. Been trying to get through all of them past couple of days...not working, too many. I'll keep trying though!

@Wafftop 5 жыл бұрын

Yet another great video that answered a question I didnt even think of asking.

@MrMarkguth 3 жыл бұрын

Same, and I’m fitting rings to some slugs tomorrow, I honestly never thought about it, I’m embarrassed

@gregorycraig1638 6 жыл бұрын

Thank you for this great video. Your info is consistent with what I’ve read. New pistons, rings and HD wrist pins for my 98 Cobra will be here today!

@justanothercanuckian 6 жыл бұрын

4th battalion of the AvE Army reporting for duty!

@rockyfosgate 4 жыл бұрын

Glad I found this channel. Excellent mate 👍

@harveysmith100 6 жыл бұрын

New here. Really enjoyed that simply, clear explanation. It seems so obvious once you know!

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@deepaksinghkanyal7141 3 жыл бұрын

You have clear conceptual knowledge

@amirkarimi6496 4 жыл бұрын

Short and VERY useful. Thanks mate!

@chrishartley1210 7 жыл бұрын

Nice explanation Matt, it reminded me of chatting to Steve Patrickson in the paddock at Donington after his bike seized in practice on the run down to Redgate, must be over 25 years ago. The weather was a little hotter than predicted and the rings grabbed. In his situation that last ounce of power on a 125 was of paramount importance but of course the gap wasn't too far out to cause any lasting damage. That was the first time I'd heard of ring grab and it explained what had happened to me a couple of times in hot weather a few years before.

@dirtygarageguy 7 жыл бұрын

Very true and great comment, video added to the list - 'ring grab, when a woman keeps your wallet for life' lol

@raybell4095 Жыл бұрын

@@dirtygarageguy Still waiting on this video! lol

@dirtygarageguy Жыл бұрын

Keep waiting, this isn't a service.

@raybell4095 Жыл бұрын

@@dirtygarageguy Never thought it was! Good video by the way. made me recheck my ring gap on the motor I'm about to put the the cylinders on.

@chrishartley1210 Жыл бұрын

@@dirtygarageguy Really? I thought the service came as part of the ring grab.

@hardwurkindaddy 6 жыл бұрын

Avoid the headache, use Totalseal rings.

@Grechieman 2 жыл бұрын

this made an insane amount of sense, thank you

@dannytharrington277 3 жыл бұрын

Excellent explanation ! well done

@TheRebelOne. 6 жыл бұрын

Excellent presentation, thankyou. ✔

@Mr_CMH 6 жыл бұрын

A proper informative video, thank you. And not one mention of Delboy.

@4570finn Жыл бұрын

Excellent video, thank you

@terrymackenzie283 5 жыл бұрын

New subscriber, great channel, loads of great content, keep up the great work Matt 👍

@dirtygarageguy 5 жыл бұрын

welcome to the channel dude

@dooleydooley4742 6 жыл бұрын

After reading the comments, and seeing this vid, you've gained another sub. ( AvE didnt send me, you showed in my recommended) good day!

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@CaptainCandycorn 6 жыл бұрын

AvE sent me 10 seconds ago

@soundararajan2090 2 жыл бұрын

Sir" super explanation... thanks

@ciaremfe 4 жыл бұрын

My advice as an amateur 2 stroke mechanic...always use original items..if you go aftermarket just choose expensive brandts and good quality products..NEVER use cheap aftermarket products...the little amount of money you will save in that case you ll need it (and much more)to repair the damage that will be done...i never had problems with original parts and i never measure gaps ...trust me

@yordyiam 6 жыл бұрын

Interesting video, another engineering mystery is brought to light and tamed!!

@poopybuttcheeks 6 жыл бұрын

AvE sent me. Love the show so far!

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@luisjesusmartinez1030 3 жыл бұрын

Fantastic , very clear, new follower.

@scottmason2245 3 жыл бұрын

Well I just learned why my originality non turboed engine is now in the machine shop after I turboed it.

@johnwilliams6407 2 жыл бұрын

Thank you very good explanation 😊 thank you

@saleemkader2126 3 жыл бұрын

Thank God and you for your video.

@tomashton7208 7 жыл бұрын

cross hatch will make the rings rotate,(not Much but they do move around) unless they are pinned, ring gaps are very important, the second ring on a four stroke, can be a gapless design.

@Javierm0n0 6 жыл бұрын

Thanks for explaining ring gaps what for I go and destroy an engine thinking I got it under control. 😆

@JCcanU 6 жыл бұрын

Thank you for the help , I just got new pistons and rings took my pistons and jugs to be bore 10th over size the Bore is 3 inch and 510th the ring gap was 22th but by the math the ring gap should be 16th or 17th but S&S pree set the gap for the chrome moly at 22th spec sheet has 18th to 22th , the piston to bore is 2.5th clearance , Ring 2 is cast iron has a gap of 28th and that has me worried S&S has the gap between 18 and 24 thousands , the oiler ring gap is at 35th but can go to 40th , I was thinking to big of a gap and you get blow by , But test have been done and even a ring gap of 1/4 inch did not change engine performance or burn oil . The test was done by Chevy on the V6 and V8 , not a Harley Davidson .

@jediknight1294 3 жыл бұрын

Did you change the gap or go with S&S spec and if you altered the gap did you see any issues compared to standard spec?

@JCcanU 3 жыл бұрын

@@jediknight1294 Yes I went with the S&S rings that been pree set and 2000 miles I was getting blow by ordered a new set 20 over did a quick hone on the jugs , cut the gap 18 top ring 18 second ring the oil ring was 26th so left it be. been good 5000 miles no blow by or leak down

@mandraxfilostein 4 жыл бұрын

Holy shit I just got schooled on piston rings.

@ocam988able 3 жыл бұрын

Great explanation!!

@youtubasoarus 6 жыл бұрын

AVE subs inbound... you've got a new sub :) And more incoming I suspect. Great video! :)

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@youtubasoarus 6 жыл бұрын

Thank you good sir! :) Great descriptions and everything. I remember gapping my rings the one time i've done it. Didn't understand why but did it anyway and then clocked them, you explained it perfectly!

@inotcakaj9993 5 жыл бұрын

Valuable info!love the accent

@killving 6 жыл бұрын

And if you ad turbo, supercharger or NOS. Increase the gap from standard spec. if you don't it can and will do all the tings you said and might break of the piston crown

@jcs6347 6 жыл бұрын

AvE suggested I come over and check you out. Who are you talking too? It was a very good and thorough explanation. I subscribed and looking for more good, solid content like this. Thanks, Joe

@dirtygarageguy 6 жыл бұрын

"Who are you talking too?" - LOL I'm not very good at this presenting thing - well at least not at a camera - but I'm getting better - this is at least 6 months old. But anyroad - welcome to the channel dude

@randywright4310 2 жыл бұрын

Thank you so much

@abdulmalikonimisi3174 Жыл бұрын

Thank you!

@Wooley689 5 жыл бұрын

Craig, Blue and Paul sent me.

@bigdirtygaming6429 4 жыл бұрын

I'm a little pissed off that AvE didnt send me... but i stumbled here anyway so fuck it.

@xtra1234 4 жыл бұрын

We have to related somewhere down the line.

@rahulgharat873 3 жыл бұрын

I've one question temp is required for expansion of piston ring but at starting of engine temp is very low so rings will not expand and joinds are not attached one end to other end so small gap will be present at initial so the mixture will not compressed properly right? Plzz reply

@psmith1349 5 жыл бұрын

Had to take an inch off of the top oil ring so it would fit into the already honed cylinder. Piston was out of spec and oil groove wasn't deep enough. After buying pistons and rings twice, can't afford this anymore. Tried to make lemonade from a lemon. Best I could do given the situation. What might I expect with one of the four rings having that much of an end gap. Just a shade tree mechanic I am. And poor as hell to boot.

@thetinkerer5763 6 жыл бұрын

AvE sent me!!! and I subbed

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@tommyescobia8381 6 жыл бұрын

Need some advice. I have a single cylinder thumper motor in my bike. It had a transmission issue. I removed the engine from the frame repaired the tranny issue and then put the motor back together. No compression. Don’t understand why, never messed with the piston. Replaced all gaskets. Torqued to specs. Still no compression. Got new gaskets again, did an inspection on the head and valves. Finally did a lap job on valves. Checked the valve guides, seats, seals and valves. All are on. Bike only has 3000 miles on it. But it ran perfectly aside of he tranny issue. So, back in the motor with brand new piston rings. Still no compression. Double checked the clocking and directions of the gaps. Checked ring gaps and thickness. These are NOS parts by the way. New Or Stock parts. I need @140psi and I’m only getting @45psi. I also did leak down test and I can hear air hissing in the crank case, evidently getting past the piston rings. The valves are sealed tight. Again, the rings are brand new from the manufacturer, clocked correct, directional, gaps are good, applied assembly oil, followed the specs. Still getting blow by. Anyone got any advice.?

@dirtygarageguy 6 жыл бұрын

1) - what engine is this from? 2) - this is with the valves closed? - I know this sounds stupid but I need to ask 3) 2 troke or 4 stroke?

@tommyescobia8381 6 жыл бұрын

The Workshop This is on a 2003 Buell blast. 500cc. 4stroke Most people would say, just toss this crap bike, but I actually like these bikes and have five of them, well, two now. I sold one, kept two and gave two away to my step sons. Also with 4 other Buells. XB9R, xb12r, M2 cyclone and 1125r. Anyhow, yes, this is with the valves closed. I put the rocker box back on and was struggling on keeping the valves closed while locating TDC, and then compressing the cylinder with compressed air. I had it in 3rd gear to help prevent the rotation of the engine, but still there’s engine movement. So, instead of installing the rocker box, I just left it off. Valves are now 100% sealed off. Did a compression check again, 45psi. Added compressed air and heard no air from the intake or exhaust. But instead, I hear air hissing from the primary when I removed the timing window screw. Again, new rings, gapped within specs. Between .007-.020. Actual is .014. Max before OS is .035. I’m still getting blow by and when starting with compression Check gauge, it’s showing 45psi. I even double checked the compression gauge tool by testing it on the M2 cyclone, which gave a reading of 140psi.

@erienwhite 6 жыл бұрын

Tommy Escobia. Is the intake to the head fully open and the throttle open. Insufficient air in could keep you from reaching full compression.

@JCcanU 6 жыл бұрын

I had a Honda SL 70 as a kid the trans had a drive chain to the cam if the dot on the timing was not set right the cam opened the valves timing was way off . Handa had trans fail on the 1970 SL 70 they would give you a trans kit all gears seals free , if they did the work it was 45 a hour , I had a paper rout lucky to make 30 bucks a week , so I got my dad to help me rebuild it took 4 tries to get the cam right .

@joshuaharrison9331 3 жыл бұрын

So the second ring doesn't seal much cause its not pushed out much from the combustion pressures?

@buddyboy1953 5 жыл бұрын

Excellent video, yours is the best I have seen on KZfaq thanks for the video !!!

@dirtygarageguy 5 жыл бұрын

cheers dude

@shadowfirekarp 6 жыл бұрын

AvE said u was skookum. I agree.

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude - loads more video to laugh at

@philno 7 жыл бұрын

im beginning to wonder if you ever sleep matt.. iv lost count of your uploads in the past 24 hrs :-)

@dirtygarageguy 7 жыл бұрын

The secret is 100ml petrol mixed with 50ml of methanol, swallow it whole with about 1/2 kilo of cocaine and you never have to sleep again lol

@philno 7 жыл бұрын

the two to one ratio of "pethanol" i can handle... the half a weight of coke..... not anymore :-D

@unixhaj 4 жыл бұрын

Actually I've never really bothered to measure it on my bikes. I should but I've not actually replaced any rings yet. Also I'd think most heat from the piston is removed by the incoming air/gas mixture. Thanks for this and your other videos :)

@dirtygarageguy 4 жыл бұрын

"Also I'd think most heat from the piston is removed by the incoming air/gas mixture." - And goes where? It doesn't disappear...

@tomashton7208 7 жыл бұрын

My 250 Suzuki atv rings wore out, the top ring is a barrel faced ring and the second one is a tapered, I broke the new second ring during installation, and put the old one back , upside down (heck if I know) with new oil control rings and it runs just fine the old top ring was 0035 and the new one measured out at 0015, the used second ring was around 0023, I run a soft hone on the sleeve and hand polished it with 600 wet dry paper, guess what no more smoke, besides the top ring is the one that holds compression, and the second is just a scraper, and I figure if it lubes more oil the better off the cooling. we will see what happens after 500 miles.

@masterofnone 6 жыл бұрын

AvE Sent me here. Heloooo!

@tylerleblanc4493 6 жыл бұрын

makes two of us

@ZealofSparta 6 жыл бұрын

Cody's Lab sent me to AvE (which KZfaq apperently buried in my subs for a long time.) and AvE sent me here. I love good channel references.

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@jasa_m7990 6 жыл бұрын

Came from AvE. Great video! Seems obvious, but someone had to point it out to me! =D

@dirtygarageguy 6 жыл бұрын

Welcome to the channel dude

@abandaojong7162 3 жыл бұрын

I love this to no much about this so I can get connected with you guys

@makataamos8617 2 жыл бұрын

good learning lesson

@DustinGould 6 жыл бұрын

drinking game ::: Drink every time he says ring gap ---- i cant keep up lol

@Nash08ful 4 жыл бұрын

Great Video !

@chickenfoundation9323 3 жыл бұрын

Would ceramic coating the pistons affect ring gap?

@whogivesacrap84 2 жыл бұрын

Yes, it does, like a hypereutectic piston its reflecting heat, that means a little more heat put on that ring. I would recommend a couple more thou in gap

@Nomatternow 3 жыл бұрын

Is minimum gap too risky due to heating? Should max gap be used? Re-ringing an old Chevy 235-6 low HP engine by modern standards. Well presented topic! 👍

@dirtygarageguy 3 жыл бұрын

For reliability in between max and min is a good place to start

@Nomatternow 3 жыл бұрын

Thanks!

@aterack833 7 жыл бұрын

i'm going to link a video here of what happens is you don't gap the rings larger on a nitrous boosted engine, it should be pretty easy for people to make the conclusion that having to gap bigger because of more heat is the same as not gaping enough for normal heat

@ezepeter8718 Жыл бұрын

so educational

@phelanpawly2507 2 жыл бұрын

Always went by an ancient prophecy by a long passed ancient assembler. .004 per inch of cylinder diameter unless otherwise stated or forced induction in which case multiply .004 by the number of sockets in an Aldi toolkit 🤪. Ps. First bit is correct and never failed me.

@craigthompson1794 4 жыл бұрын

I build bike engines and that's perfectly explained .

@I_leave_mean_comments 6 жыл бұрын

Hi, long time listener, first time caller... I have a Ducati Desmosidici, and I was messing around with it, and my ring gaps looked too small... so I took a Dremel to them to open them up a bit... you know, let them breathe some. My question is... what part of Australia are you from? Also, subscribed.

@dirtygarageguy 6 жыл бұрын

Down under - so down under I'm from yorkshire - that's pronounced York-SHa LOL

@dukedawolf4175 6 жыл бұрын

This would have been nice to see about a week ago

@TheBizzerk2001 6 жыл бұрын

The AvE army has arrived

@Justiceinabarrel 6 жыл бұрын

set the top ring and second ring 180 from each other also

@nuclearwinter21 3 жыл бұрын

I have done that. The result is lovely. 💚

@plbyrne 6 жыл бұрын

AVE victim here in NZ

@scroogehowsshehandle 2 жыл бұрын

Good to know

@madpelotthe2nd63 4 жыл бұрын

Thanks I needed this

@sp00fman1 6 жыл бұрын

AvE made me sub

@dirtygarageguy 6 жыл бұрын

Did he? Didn't realise he had your family hostage - told him to stop that. Anyroad, welcome to the channel dude

@rockabillyrebel9207 6 жыл бұрын

Ave sent me !

@dirtygarageguy 6 жыл бұрын

Welcome dude

@Lemonas244 3 жыл бұрын

thanks, i would have never known this. U just blew my dumb mind. again..........

@exidous6831 4 жыл бұрын

My rings are specced at .006" per inch of bore. My bore is 4.125" which comes to a minimum of .0165" gap. The rings are sitting in the bore with .023" gap. Sure I'll loose a little power but my motor won't snap a ring land like it did last time from base factory spec.

@dirtygarageguy 4 жыл бұрын

if you're snapping ring lands with the OEM spec then obviously you've changed something - but what?

@exidous6831 4 жыл бұрын

@@dirtygarageguy That's easy. Fuel slosh from a tank that was just a bit too low.

@axelriet 3 жыл бұрын

4.125 x 0.006 is 0.025. The 0.23 gap you measured is 0.056 times the diameter, and is thus *less* that your minimum spec.

@SebastianHalskov 6 жыл бұрын

Ave Sent me, nice information, good to know.

@samiant5199 6 жыл бұрын

AVE sent me

@dirtygarageguy 6 жыл бұрын

Welcome dude - but where's the video?

@samiant5199 6 жыл бұрын

Its out in a week I spend what little student money on his amazing patron page

@bezig5779 6 жыл бұрын

The Workshop its out now

@vainparasite 6 жыл бұрын

Joking aside....i havent joked on this video yet tho.... Anyway im more a cut it hit it grind it weld it bloke being a commercial vehicle bodybuilder by trade so i didnt know about this so ive learned summat 🖒🖒

@matowixunplugged7927 6 жыл бұрын

It surprises me that these oil rings and the holes under them that return the oil back inside the piston don't clog. Wouldn't they block once the oil gets old and oil changes aren't done regularly.

@taiwooyeyemi3138 6 жыл бұрын

hi i have this issue of starting my car it hard for it to move until 5 mins of run and hot in engine before gaining pressure to move can any one advice on what to do ,it a honda accord engine 1999 model

@iraqresitance9663 3 жыл бұрын

Hello from iraq well done thank you

@ashishshah9531 7 жыл бұрын

the power of knowledge

@krisztianromer433 2 жыл бұрын

I think this may be my problem. My 70cc 2stroke just lost all compression and started making a weird sound I think the ring failed

@ZPositive 6 жыл бұрын

Here because of AvE. I likey!

@dirtygarageguy 6 жыл бұрын

Welcome one and all LOL

@jameshester3831 3 жыл бұрын

As a rule it is .004 thousands for every inch of bore

@dirtygarageguy 3 жыл бұрын

That was along time ago and is now out of date

@RealMonstarz 3 жыл бұрын

i have a sr20ve engine an only when i rev the engine pass 6000rpm it pump's white oil smelling smoke from the exhust...could dis be faulty rings or gap //the gap it 0.022....is dat good for the sr20ve.???

@dirtygarageguy 3 жыл бұрын

White? Coolant leak. Your head gasket might be leaking or cylinder is cracked

@RealMonstarz 3 жыл бұрын

@@dirtygarageguy more like oil residue iin the exhaust valve ports only in #4 cylinder.. ..rite now engine is scrap out ...

@xDrDeath78x 6 жыл бұрын

Are you teaching a class and are being recorded by a student? Oh and AvE sent me

@dirtygarageguy 6 жыл бұрын

I'm just retarded LOL old video.........

@abednkrumah4766 5 жыл бұрын

can we create what's app group so that we can discuss more on Automotive engineering+264816880752

@andrewdevereux5513 4 жыл бұрын

Hi matt been watching your videos for a while Now, keep it it buddy Maybe a video idea Is supermarket fuel inferior to other major brands And. What are. Your thoughts on ktms 3 stroke, They are developing.

@dirtygarageguy 4 жыл бұрын

3 stroke?

@andrewdevereux5513 4 жыл бұрын

@@dirtygarageguy yes i said exactly the same when i heard it.

@jaysongalang9291 5 жыл бұрын

Thanks brother

@patjakker6730 6 жыл бұрын

Here's a thing that i didn't (and still don't) understand: If you run a 2stroke there is a fresh mixture above and underneath the piston and little (piston ring) gap especially when cold. What preventing the "flame" from traveling through?

@dirtygarageguy 6 жыл бұрын

Nothing, but its a choke point. This is why you have a large cone around you're spark plug. Flame fronts combust and release heat, this in turn heats the fuel/air ahead of it. The tiny ring gap and the rings themselves absorb this heat and the flame front is killed off. Great question. Video coming soon.

@patjakker6730 6 жыл бұрын

THX for the (quick) reply, so it's that simple ?! I knew there had to be something otherwise every 2stroke ever build would have exploded at first start ;) Didn't expect this answer, always thought that an ignited fuel-air mixture was unstoppable (behaving gunpowder like) BTW it's an very old question that I had examining the piston of my first moped, witch was black underneath the top ring (yes it had 2) about 30 years ago!

@HarleyN93 3 жыл бұрын

is there any truth to the theory that if your engine is a bit tired and using more oil than usual between services you should up the weight say from 5w30 to 5w40 providing both have the same spec i know its now weight but hopefully you get what i mean

@dirtygarageguy 3 жыл бұрын

No. Weight is an Americanism that should be banned lol as engines wear the clearance increase. This means a steady drop over time in oil pressure. Using thicker oil doesn't help this in any way.

@HarleyN93 3 жыл бұрын

@@dirtygarageguy so it wouldnt help the oil burning issue then? full rebuild the best way forward price depending?