Engine Autopsy | Oil Starvation
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- Опубликовано: 2 окт 2024
- If you're unfortunate enough to have an engine failure it's important to determine what caused the problem. If you rebuild the engine without figuring out what happened to it your new engine may suffer the same fate! In this new series we're calling "Engine Autopsy" we'll be looking at various engines that come to our shop hurt and try to determine what caused the damage.
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He's this crazy combo of the easy going friendly guy but he has been going so long in high performance and seen so much stuff. He's a treasure. So much learned wisdom. When he sneezes he forgets more than I've ever known
I really like this series. Breakdowns of breakdowns is what I'm calling it. I am a mechanical nerd so I hope that I am not alone on this. I really want to see more.
Agreed. Free access to a wealth of knowledge without any gate keeping or attitude. I’m literally saving years and thousands of dollars in trial and error watching this. This channel in general is phenomenal.
Yes
You definitely arent alone bro
@@Bbbnmir u do realize people watch informative videos to learn about cars right? U sound more like a takeover groupie that knows nothing about taking care of vehicles. We watch to learn not to be stupid
Yeah not alone bro. When motoiq drops I get into my happy place
Jiffy Lube used the incorrect spec ATF in my sister-in-law's car a number years ago. They ended up owning up to it and replacing the trans. When I worked at Infiniti years later, we would have vehicles of customers who service their Infinitis at Jiffy Lube, come in with various issues. It's important to realize that a Jiffy Lube oil changer has nowhere near the same skill level as an Infiniti technician. Beyond substandard oil filters, I wouldn't trust the oil quality each shop uses either. What amazes me is the price for Jiffy Lube oil changes were comparable or even more expensive than our Infiniti dealership!
We bought a used Sequoia and the owner had just gone to a Valvoline quick lube before we bought it. Next morning there was a large puddle on the driveway. No gasket installed on the drain- just a regular metal washer whose I.D. was bigger than the drain plug!
Glad I saw it before she drove off. Simply added a gasket, topped it off and gone many tens of thousands of miles since…doing our own oil changes.
OH MAN that OG civic SI in blue 😍😍😍😍😍😍😍😍😍😍. you just don't see'em much these days and so clean too!
California.
I could listen to the wisdom cascading from this gentlemen all day long.
Would be fun to hear an update of the cause of this failure
Quicky lube oil change and e85 causing oil to become contaminated... Listen him speak.
This whole video is about the cause of the failure!
@@motoiq not the source. You kept mentioning that it could have been a bad oil change or some other reason but had not spoken to the customer. It was obv oil starvation as you explained but what started it all?
He had no clue or I would have mentioned that in the video.
@@TreatsOnTheStreets he's implying that the customer or an oil change place started the car up with no oil and they tried to cover up the failure, which is why so much bearing material is mysteriously missing.
Has anyone had this engine apart before? It’s really odd that one of the bearing halves was completely missing. Maybe they forgot to insert it? That would certainly cause low oil pressure. 😂
Nice EM1!
Great video Mike!!! Do you own oil changes or go to a reputable place don’t cheap out.
I do my own on the cars I care about. Oil change place on my truck and wifes car.
Excellent and educational. Now I know a little about what to look for should I ever take apart any of my engines.
The ford 5cyl diesel in the Australian ranger have a variable volume oil pump. If you allow the engine oil to drain for longer than 15 minutes, the oil pump often doesn't prime when restarted.......not good.
The after market here makes a non variable replacement oil pump.
I had a bad experience with oil starvation in my 4G63 build. My oil filter came loose at 70mph and immediately destroyed a fresh engine. I had to sell my car because I needed transportation and spent all my money on the now ruined engine. Oil changes are cheaper than another engine.
Out of everything that had to kill the engine. Sucks man the 4g63 is such a good engine.
I love this. Just wish parts were zoomed in when talking about them so we can follow closely.
Great series.
Yes! More focus on the damaged parts is a great suggestion!
The oil pump would have to go on a performance rebuild.
Going to a jiffylube is like russian roulette, the random employee in there might just have the bare minimum on how to change oil... maybe. The last time i went there they didn't even tighten my new oil filter on: I'm taking about just hand tight. After they did the job i went under and was able to turn my newly installed filter they did with just one finger. Would have been running with a massive trail of oil all the way home. Something as simple as an oil change that's so cheap to do, really should just be done by the owners themselves or a shop you trust and have experience with. Avoid the jiffylube highschooler getting paid crap that could barely do their homework to touch your car.
Wow nice to see a vr30ddtt
I had an oil change place straight up forget to put oil in my work car. Ruined the engine
I really hope someone with a built engine isnt taking their car to jiffy lube
When I blow my engine I want to bring it to you guys for an autopsy video 🤣
Haha flash car but can’t afford to keep it the story continues.
awesome breakdown
I just wanna say thank you for your knowledge 🙏
It looked like the owner left it at a rookie shop for an oil change and the shop for some reason started it with low or no oil.
How many bearings should we spin? "Yes"
Thanks for sharing the VR30 is an egine i been interested for some sort of swap or just a Q60 coupe maybe . good to know the open deck and the direct injection are things to deal with
That crank is smoked for how little internal wear there is on the rotating assembly. That motor died QUICK.
Milkshakes don't lubricate well...
But they do bring all the boys to the yard.
But good lubrication is essential. Doesn't add up. 🤔
Hey man your cool thanks for that
The casual Subaru dis 😂.
Subie life, my friend. We drive shitboxes. But they're OUR shitboxes 😂
I was cringing waiting for it when Mike mentioned the thick Nissan top ring land.
Unpopular opinion - Subarus blow up because of stupid owners requesting too much too soon lol. You are not wrong 😅
Awesome video , could you please do a budget "daily" SR20ve turbo build please , keep up the great content 🙏
we did!
@@motoiq will go through the videos and check , thanks for the reply 🙏
Sorry I see you wrote VE not DE. There is no such thing and a budget VE Turbo build!
@@motoiq lol true that , changed my mind on the turbo build
Another good one, thanks! Much prefer learning from other people's mistakes 🤑
Hey there Mike, great video on the lack of oil carnage. I have to say my first guess you already nailed. Yeeeahhh...That shitty STP filter tells the truth. The guys at friggin JiffyLube forgot the lube in a jiffy. Oh my golly!! But still I'm having trouble with the missing rod bearing shell. WTF...How did that disappear. But seriously, yep, that engine got twisted with zero oil pressure. At least the block and heads are salvageable.
How did it disappear and not mess up the rod and crank more than it did!
Hi Mike.
Once again I’m here and happy to see it wasn’t an EJ engine. We have survived another roast.
Going into this vid, I 100% thought it was going to be an EJ
Lol 😂me too
us VR30 owners be feeling like we own a Subaru sometimes just with two extra cylinders
Bet that rod bearing is in the oil pump
Throw a whole host of bolt-on mods on their engine but skimps out on giving it proper oil changes and oil filters, sounds like such Nissan driver thing to do 😂
Exactly, then people blame the engine.
I had my oil cooler lines fail at me when I was at about 275k on LQ4, I was on a interstate mountain pass with no shoulder due to construction for awhile so when I shut it off it locked up. I was convinced my engine my was toast to the point I even panic bought a different engine that wasn't a 6.0 because 6.0 ls aren't cheaply found. But then I decided you know what I'm gonna take a look at it and by putting marvel mystery oil in it for a few days and it then started spinning so I dropped the pan and took out all the mains, none spun all immaculate, the damage crank was toast and rods were toast. But the block survived and I'm really impressed. It appeared that while I did lose oil almost everywhere the mains didn't lose all oil. Even the crank journals on the mains were still shiny. 4/5 were even in tolerance. So I am now rebuilding it. Sure its probably gonna cost me a little bit more to do the build than buy another engine but I think the extra money is worth it since I'm building out a 408 stroker so way more power than buying another stock 6.0. Then its a rebuilt engine with a forged bottom end which I'm sure will last longer than a random LQ4 with unknown miles.
Beautiful civic 😮
I really, really hope this channel keeps putting out such excellent, informative and intently educational videos such as they have been.
This one, in particular I great for it's completeness, thorough explanation of observations and (more than anything) very approachable and presented in digestible manner even for those relatively unlearned in automotive mechanics and engineering.
Wonderful stuff and greatly appreciated.
I agree with what you mention, it seems to be the oil pump stuck on the lower side of the volume capacity, from my point of view, you have some tell tellers, the most obvious one is that there was oil cooling, so oil was there just not at not enough volume, enough to cool the parts to not get things extra hot to change them to blue or burple color.
"If you want to read more tech, and you still know how to read" 😂😂😭😭😂
Please more of this series!
That engine is exactly like mine, brand new top of the line everything and after 2000 miles spun a rod bearing from low oil.
did anyone notice the line in the cilinder bore where he was talking about the groove on the piston for the oil squirters
Given trash may remain, even when a max effort to clean is employed…
Is strongly consider trashing the whole mess!
I would love to see a comparison of this engine with a VR38 😬. I’m curious if this would make a good engine swap when you close deck and replace with forged internals.
VR is coming soon
Nissan and oiling problems, say it ain't so! I should know since I'm a Nissan guy! Been taking Nissans to trackdays for more than two decades now and first thing to do is upgrade the subframe bushings to solid bushings (Edit, I know, has nothing to do with oil problems but trust me, do it!), then the oil pump to billet gears (fun weekend and true friends work for pizza/Chinese food and beer), some Redline MT90 in the trans and their 40W race oil in the engine, and do NOT run E85 in them unless you short change your oil! Nissans (Subarus and Hondas!) need clean fresh oil and a proper engine heat up cycle. Do that and your Nissan engine will last many years! Only Toyota-Yamaha boat anchor engines run fine on ten year old McDonalds fry oil waste.
Given the distinct potential that significant debris will remain even after the best effort to clean…I’d strongly consider trashing the whole mess
Love the series. Super sleuthing.
If you see your engine in a million pieces on Mike's table, you had a bad day...
Can vane oil pumps loose their oil prime if during the oil change the sump is left empty for an extended time period?
Fascinating forensic analysis! Crazy that someone with a performance engine… got an oil change at a place that uses cheap oil filters.
I find this quite interesting and concur with both scenarios you've outlined, but I potentially see a 3rd one. The 3rd one is the the computer operates the variable oil pump and just maybe it didn't function as it should have. I'm not to fond of the oil pump they used and not because of it being variable, as I have a variable one in the Porsche flat six I have (some of those have failed too). Interested to see the Part 2 on this for the educational aspect on cause & effect.
Just like the pump on a 4l60 e 700r4
Dry start damage or super low level , pressure . one thing the crank journals werent floating . Thats the cleanest d.i. head Ive seen in a long time. Great autopsy video .
Car forensics!!! Jiffy Lube is in trouble. Ask for the oil change receipt
Love these videos!!! Any video we get with Mike in it is the best!!!
Please keep doing these. This was such a great video, super educational.
This is one of my favorite series yet. You've got a knack for this stuff and I've found that's incomparable on RUclips.
"If you still know how to read" :D
Brutal lol
Probably gonna be cheaper to put a brand spankin used motor back in the car
I love this kind of content! Diagnostics and forensics--both fascinating.
I like the breakdowns
Keep this series going!!!!!
You guys are doing the lord's work with these videos.
this is not the first time i hear of vr30 oil starvation issues
Hey! Where's the b58 love! Love your videos!
I'm currently building a Nissan VK56VD for boost; the engine was burning oil like crazy and likely had a starvation issue at one point. What are your thoughts on Accusumps and the like? Presents itself like cheap insurance for an 'expensive to me' rebuild....
If you are doing track days or drifting they are a help.
Yep, just buy a new motor. 😊
I'd wager the solenoid on the variable pump failed and the low volume of lubrication ruined the bearings until enough particle debris jammed the pump vanes.
The variable part was jammed, the vanes were ok.
Was this engine rebuilt? If so, the builder didn't check bearing clearances and had too small bearings installed. I don't think there can be any other explanation for EVERY SINGLE bearing being spun
Oil starvation.
the frs in the back round😍🥵
Want to buy it?
@@motoiq whats the price?
Mike's sexiness is the reason I watch. 🔥
Love this series
Props to the owner for shutting it down quickly enough to save the block. Most people would've kept driving till it windowed. I think I'd just go find a low mileage used engine if he's not interested in going for big power. And then sell the old cleaned up block and heads to someone who wants to build something.
We measured the block later and the bores were tapered past the maximum spec. The whole engine is trash!
What oil filter brands do you recommend? Hard to find good information about them out there for flow and efficiency. I'm mostly worried about road racing/autocross applications.
OEM is the best.
was there a oil additive used?? typical slick 50 problem.
No
cool video!
That is a very clean engine….zero sludge in the rings. Perhaps this engine failure is the result of oil changes too often? Higher chance of a mistake when the oil is changed more often at a low quality quicky oil change place. Should either DIY or take to a trusted mechanic who will not make mistakes
I think that missing con rod bearing was literally consumed by the oil pump. It was definitely started with no oil. Filled and the engine was probably whining for a while and then just seized up
potential oil change place putting wrong grade in?
No
This is amazing
Hey Mike! I am wondering what oil pump to run, I have a 13 sti and i cant make up my mind on stock or iag stage 2 cnc ported! Let me know your opinion!
IAG
@@motoiq thanks!
I love this!
Hello! I’m looking to get an estimate on a 4age engine rebuild. I tried to fill out the forms on your website but kept getting errors. What is the best way to contact your shop for a work order estimate? Thanks!
Checked, nothing is wrong with the site or links
@@motoiq Got it! Thank you thank you
+1 for a follow up video after the owner talks to you again!
Close that deck
Love these vids.
Could you do an FA24D [GR86, BRZ] autopsy? And, maybe a FA24F [VB WRX] comparison.
We haven't seen a blown up FA24 yet. I think the only people who blow them up are track days who don't overfill their crankcases. We service several GR cup engines and they have completely stock oiling systems and no signs of bearing failure on them.
@motoiq I would love your opinion on the excess RTV and oil starving in the F24D and verus' oil pan development. I ❤️ your channel!
I think RTV is a problem, especially when people try to service the front cover in the car. Nothing short of a dry sump is going to have no pressure drop ever on any engine but I have been watching the pan development too.
Could you guys do some of the European 4 cylinder stuff
Please make a video on turbocharging the ZN8 FA24!!
We did on how to build the engine part
@@motoiq Just saw it, your videos are great. Just throwing this out there, but the entire gr86/brz community is a bit disheartened right now because the fa24 in these cars are encountering oil pressure drops supposedly leading to engine failure during performance/track driving.
Some youtubers such as Ansix Auto and 900BRZ have made great data logging videos on the pressure drops on track.
Would love to hear your insights on why this occurs and how to mitigate!
Verus is doing extensive testing a pan now that should cure it.
Please breakdown 2ur gse engine sir
We need a blown up one and they don't
❤️🔥
At around 10:30 you mention that the AWD crank is more expensive than the RWD crank. What are the functional differences between the two cranks?
They look the same, I think it might be the bolts on the end.
I thought these were aluminum sleeved engines with a spray in liner. Didn't think it could be bored out.
only a few thou
Can there be chance of problem happening when after market tuning dyno run where they push engine to limit.
In the dyno room pushing the engine to the limit would cause visible scoring from the heat. No heat is seen. Detonation, could happen from this but in this specific video none is seen. Everything is in good shape, but low oil pressure or no oil was the cause.
Guy seems very happy
😁
Noise but no low pressure warning , gauge or light ?
It should cut out the ignition like it did on Chevy Vegas 50 years ago. It's insane that modern engines don't have low oil and high temperature cutout.
Old ones and the Vega did not either.
isn't there an oil pressure switch that sets a code for low oil pressure when the pump should be providing high volume and pressure? All the engines with variable volume oil pumps I have experience with have those (30 psi or so for the switch). And running with insufficient oil pressure for prolonged time would have shown, and caused the rod bearings to fail before the mains.
There is a low oil code, which would be set off from low pressure. However considering the bad filter that option that he mention is the most likely factor.
By the time that comes on the engine is usually toast.
@@motoiq it should come on at 30 ish psi pressure when the engine expects more (like at start up). The engine won't be toast if the driver takes it easy and gets the actuator fixed. the 5 psi low oil pressure warning is pretty useless
But the hot idle pressure is lower than that.
@@motoiq That's ok, you have 2 sensors, 1 for when low volume and low pressure is programmed, 1 for when it's not. Many brands have these and they work to warn of a stuck oil pump actuator. But I don't think that is what happened here