Tearing Down the MR2’s Blown V6 Engine! (2GR-FE)
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- Опубліковано 26 сер 2024
- In this episode, WE Tear into the old 2GR-FE and find out what exactly happened!
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Do this type of stuff more often. I enjoyed it
A C blow up a motor more often?😂🤣
Im joking ofc i get what u mean
@@henry-5899 Full Send !
Because they actually did work and not spend a 20 min video with 5 mins of actual work and 20 mins of talking
check out @speedkar99, he's got a lot of teardown vids and explanations
I have worked on many GR series engines since they were new. Every time I have seen the cylinder 6 bearing be spun has been due to either being ran low on oil due to oil cooler ruptures or having a ruptured VVT-i supply pipe for bank 1. Bearing 6 is the last bearing to receive oil in the engine. Most of the time with that failure, the exhaust cam gears will show some separation as well.
Vvti had metal lines and they did their own oil cooler. You don't think it could be from the first start up?
I'm losing hope that i will ever solve this noise problem ua-cam.com/users/shortsKk3kyzKZew8 Maybe You know what could this be?
My engine did the same thing this one did. Same exact sound and eventually metal in the oil. Buying a new one soon..
Does it make sense to observe a warmup period? Could it be that simple?
Lol pro tip: usually if the bearing stays on and doesn’t come off with the cap, she ain’t gonna look too good
LMAO did you see how tight those main caps and rod caps were? They couldn't get it off with two different impacts so they went to a pneumatic.
BushWookie73 doesn’t matter if u ever rebuilt a motor you know if you don’t you don’t no use getting frustrated lol
You guys can sure beat fast and furious with your car creations. The MR2 was a with of art. The conversion alone from 4: to 6 cyl in that cramp mid engine required a lot of automotive engineering skills. While it broke down as the new owner was about to take it home, it didn't disappoint me at all. I saw your you tube channel accidentally thanks to social distancing with this pandemic. As a store parts manager retiree from one the US larger auto parts and service chain, I'm impressed by your enthusiasm, technical expertise in every vehicle that you work on. That MR2, Nissan 240sx, Subaru STI are examples of what highly skilled technicians like your group "Throittl" can do like an artist that executes painting murals or sculptures. In the 25+ yrs with that auto parts chain, I never saw a tech that would work on a car that would do it correctly the first time. The come backs I had to put up with. The technicians were there just there to make money at the quickest possible way bc if commissions on parts and labor, but at the expense of customers who may find the service done to their cars are not worth the money. You guys will do the work to satisfy your customers. Wish I discovered your you tube channel much earlier. That MR2 would be worth winning as it was manual transmission. Will continue to watch your channel from New Jersey. BTW, I still drive 6 speed manual transmission 05 Nissan Xterra 4x4. It's got only 55K miles on the odometer and I'm a real senior, senior that never owned an automatic transmission vehicle.
proof that a video doesn’t have to be an install for it to be entertaining. just needs father Mic and Beckerman to host it and Victor with the top notch editing. sick videos guys
Thank you some much for making this video. I was really curious about what happened to the motor. I think it's awesome that you listened to what your viewers are saying and asking. Seems like most channels don't read comments.
You’re welcome. We read all of the comments every day!!
Would love to see it put back together and put into another car
Yup I would like this also
jose alicea agree
I'd like to see this engine race spec rebuilt, performance tuned and put into another car.
Mad love and respect to all of the motor heads that replied ✌🏼❤️ respect God bless to all can’t wait to see that build don’t let us down 96.2% voted they want to see it done let’s go🏁🏴☠️
Seems rude not to rebuild ready for boost
Love seeing the problem of an engine failure being exposed. Always love learning types of sounds to diagnose the problems.
Totally agree M8. But the cause of the failure is more interesting imo. My guess is it was a worn motor to start with, then power was added. Always make sure the motor is healthy before adding power. Loved the vid and whole series. Hope Brett is loving the crap outa this gem!
@@jerleh261 I feel wherever they bought it rebuilt the motor and left it out.
Wait so it wasn’t the dudes fault for full sending it????
those are teflon coated bearings, meaning it has definitley been rebuilt but obviously not cleanly, hence the oil contanmination and bearing damage
Hence why you never fit an unknown condition engine into a car.
Nice beauty shots at the end there!
It'd be really great to see a follow-up video of what you'd need to do to fix and reassemble the engine!
Check that oil filter to see if it collapsed. Also check the oil relief valve as well is stuck open, this would cause oil pressure to drop both of these failures would cause a spun bearing.
As soon as you pulled the head off you could see that on bank 2 cylinder #6 had piston to head contact. The aluminum was beaten and somewhat shined where the contact occurred both on the piston and head. That was most of the rattling heard when the bearing cratered. Credit to you and your team that you replaced the engine and got the car going, there really was no other way.
Good catch. I saw it but i didnt even register
I want to know what you are going to do with the motor now. Just have it around for parts or are you going to rebuild it????? With a lot more power?
Trash most likely they no longer have the mr2
@@rushking19 you can put it in any car. have you ever heard of a motor swap?
@@lostprophet356 they have no use for it tho I just dont see them doing that unless they get another mr2
@@rushking19 What? That motor is a perfect keeper for alot of toyota builds.
@@rushking19 it will go into more then just an mr2. you're an idiot if you think the only thing to do with it is throw it away
Woot. Great consistent content.
So glad I found your channel. My oldest son just purchased a built ‘92 MR2 that is insane. Figured I had better start learning about them for future upgrades. Love your videos!!!
How in the world you can take that thing apart and remember how to put it back together blows my mind! Us no mechanics love this stuff too! Fascinating!
i was doing this at 12 years old. fully rebuilt a 72 model 455 Olds Hurst Rocket and dropped it in my dad's old 67 F100 just because i had it and the 289 that was in it ... you got it.. spun a rod bearing. of course we became known on a first name basis with every gas station in the tri-state area. 6 miles to the gallon.. 8 if we eased off the pedal some
@@WrenchS13 Fantastic story! Thats what it takes, passion, fun, work, experience and good times!
Loved that content.. You guys should build that engine up, and find another MR2 donor for it.. Straight track car with a built up 2GR..
Need another car to go to the track with Mickey... sounds like a perfect reason for another mr2!
How about a Toyota Celica from the early 2000’s?
I.d like to see Rickie and Mickie.s Rx-7.s running against each other.
LoL I called it soon as I heard that noise from the other vide. Always replace bearings when buying a used motor, especially when putting it in a “tunner car”
Every engine I’ve ever fitted has not gone anywhere near a car until I have changed bearings and inspected the bores. Doesn’t always require a full engine build unless I’m looking for extra power.
Bearing will do that when they spin and get hot. Sometimes they are even blue in color. And they mushroom out around the end caps.
Any plans for that engine since most of it is in good condition?
thats what im sayin
It's cheaper to get another used engine than to rebuild it.
@@allanb3222 not neccesarily..another used engine could be a ticking time bomb as well. Rebuilding it could garauntee the engine last for a long time. Also you can build a race engine with it insead of just chucking in a stocker.
@@allanb3222 They opened it already so, half the job done
@@allanb3222 they make money off of these videos, meaning they would actually MAKE money by rebuilding it, so its actually not a bad idea
Full send Brett 😂
i love content with people that actually know what they are doing. I've got too many projects going as usual. 73 Super Beetle, 83 280zx, 95 BMW 325I vert (E36 problems... you know em), 67 F100 my dad turned over to me years ago, and a 93 GMC Sierra extended cab thats due for some bags and a paint job. Super is getting a body off restoration with all new floor pans and a full engine rebuild, the ZX is a driver for now but you can never leave a Datsun alone, had to swap out a cracked head on the E36 and now im chasing electrical gremlins, 67 F100 got a 2005 crown vic panther subframe up front and has a 4.6L waiting to go in til i find a coyote. so much to do, so little money
Had spun a bearing once and at first thought it was a lifter since you hear it coming from the top. But once I removed the oil pan and rocked the rods one of them was loose. So had to rebuild the engine, the crank had a hairline crack since I drove it like that for a bit.
The bearing spun because the pulley was hitting the engine mount which put unbalanced pressure on that rod.
Not possible. That was the #6 bearing towards the rear. If any pressure related issue back there, it would be some kind of alignment issue with the transaxle. This can happen if you do not use the alignment collers.
Did the oiling to that rod journal get plugged or starved of oil by some other means?
Over rev’d ?
Amazing...the development that's come to production....that's essentially a race motor...beautiful piece.....
Had this on my old evo 6. Completely span the big end and welded itself to the other half. Knew instantly by the noise on the other video. You never forget that noise haha
Lol pulled main caps first when you couldn tell from the sound it was a spun rod bearing!!
They totally pulled that engine apart backwards. LOL but hey at least they found the problem.
Damn, shout out to that V6 staying together for the ride back to the shop, with a spun bearing.
had the crankshaft actually break diagonally in my buddy's 65 MGB and we made it the 20+ miles back home in it. tore it down to see what happened and couldn't believe it when the crank came out in 2 pieces
My 2006 Toyota Sienna XLE has this engine. I love it it totally elevates the experience of driving, especially when using the manual mode. It is a powerful little thing I can see why they're used in Lotus' cars, at some point I wanna put a turbo in it and upgrade it so it can take it without burning oil/not providing enough lubrication since the Sienna is so heavy.
Was easy to see by the discoloration around the crank journal, didn't even need to pull the main caps.
You got the makings of a nice coffee table there
Probably reved the engine at 1st start up @8000 RPM . There hardly a chance of rod bearing failure at full temp.
Thanks for the update and pull apart of the block.
Back when I rebuilt my 4G63 in my Talon, The set of main bearing I received were improperly drilled and only lined up with 80% of the oiling port on #4. I only found this out once it spun a rod bearing and I took it apart and noticed. Sometimes things just don't go right lol
4G63 was a damn good engine though. had a 96 Galant with one in it. the auto trans was crap but I ripped down the autostrada in Italy more than once at 140mph+ in that car. (all stock btw) 3rd and last time the trans went, i junked it rather than ship it back to the states. Mitsubishi knew there was a manufacturing defect in those transmissions too. they swept the filed complaints under the rug to avoid a recall and got raided by their version of the FBI.
No, the knocking we all heard was a bearing that was slightly damaged once he got on it he spun the bearing even more we don’t need tear down to know it was a bearing. Oil pump probably failed. Also next time before you take an impact to the rod wiggle each rod whatever one has more play will be your spun bearing. I remember when I was first learning on cars too keep it up guys you’ll get better!
Who else wants throttle to build a ALL track celica?
Like an 88 All Trac type? Or?
Omaro Acosta what about an AWD Supra?
Yea like a 94 ish GT four
@@craiggotgame not sure how much aftermarket help there is for those Toyota rally cars like the all trac. Would be nice if Toyota would bring something like that back. Maybe we will get lucky and get an all wheel drive Corolla Hatchback Turbo?
Maybe these guys can build a Mitsubishi VR4? Would be cool 😎
@@eppyz they've built (I might be wrong as this is to my recollection) 2 3000gt's and I think one of them was an actual VR4
Hindsight is a beautiful thing and I want to acknowledge that before saying a 2GR engine from a heavy car (Hilux, Estima, etc) should be rebuilt and retuned to fit into a lighter car. High-load, low velocity to low-load, high velocity. Imo. Great video! 😊
Check it out, I use to work at a toyota dismantlers and we found guys who Used the Blacktop/Silvertop 4AGE FWD (Levin) in a RWD orientation, It would spin bearings as the oil pickup was designed to have the oil collect at the back of the sump under acceleration, but now that its in reverse it will starve the pump when the oil collects in the wrong place. maybe dry sump to eliminate that issue next time. All the best with your future Vids, really enjoyed it. All the way here from NZ!
Cleanest engine ever. 😳
I thought it would've been a blinker fluid issue
The way it was ticking I think this had a very high likelyhood of being the issue. They should still check it just in case thats like 50hp right there!!!
That bearing was gone long before you got that motor into the mr2. Now you should do a full build and suoercharge it, then put it into my 93 hardtop mr2! 😁
Lucy Rand my bets is oil was on the underside of the bearing
This is why you use plastigage when you are rebuilding an engine. So if the bearing is too loose or taught, you can always return them, get replacements, and save yourself headaches down the road. If you spun a bearing, you are going to need to get the crankshaft machined or replaced.
Throtle do a muscle car project that would be cool
Something mopar like a super bee
A Restomod build for like a fox body or new edge mustang would be cool. Throw in all ford parts and make it sleeperishhh
I've had a 2gr swap for the last 3 years with around (15-20)k miles, beating the shit out of it. I'm very curious to see what went wrong with your build and appreci5that you took the time to film it to possibly help other 2gr mr2 owners.
Whoever rebuilt the engine Probably oiled the outer part of the bearing where it contacts the block,referring to the reassembly guide it states in bold letters to not oil the outer parts of the bearing only inner part.thats prolly why it's spun.
Still have no issues with the swap? 15 miles in, my engine did the same thing as theirs 😢😅 sucks! Taking it back out..
@mushlove6933 ohh no. That sucks. Yeah, it's been almost 6 years now and it still runs like a champ, even with autoX and still beating it like it owes me money.
@@MR2GR thats good to hear. It makes me scared to drive the swap since i feel like the engine is so sensitive!
@@MR2GR lucky. Lol. Does your 2gr have coated valve covers? I did mine but did it right. Removed baffles and everything.
I'm a Toyota master technician, I knew it was a rod bearing immediately. My guess was cylinder 3 though lol. 2GR's have that issue when pushed too hard and have not been properly maintained. Smart choice with the Sienna motor with the factory oil cooler setup.
Everyone's a master of something in the comments section 🤣
ok...?
For the Record. @ 3:00 The noise He tried to play off as the Water Pump Pulley Bolts... I just shook my head. It's the Glorious Noise of Hot Metal In Distress While Rotating! RIP 2GR-FE!
Ha! My diagnosis from the first video was correct.
You could hear that bearing screaming a mile away.
I'd bet either the rotating assembly was not assembled/torqued correctly OR the VTEC solenoid was not functioning properly and didn't allow enough oil pressure idk anymore LoL 😏
Toyotas dont have vtec, they have vvti of some sort. I wish toyota would make a vtec system
No surprise that it was bearings. I was more surprised the engine noise wasn’t picked up before the high revving clip. It was that loud during the drive to the highway.
It could be an incorrectly installed bearing which could have lead to said oil starvation. One can only suspect you deliberately wrecked the engine to provide the content simply because it was that noticeable.
Anyway nice content, because despite knowing it was the bearing, I still watched.
My bet is, they used a "thick" oil, with performance driving in mind, and the guy who won the car smashed the gas pedal when it wasn't up to temperature. The oil cooler didn't help also. Now, I could be completely wrong since I don't remember what oil they put in it, or if they installed an oil thermostat.
Anyways, the video was very interesting and educational in a sense. And the motor sounds absolutely sensational. Great work overall!
Not sure if you noticed but...
If you listen to the video when Brett took it for "full send", you can hear a rod knock before he got on to the freeway.
Top Mark's for the quick engine change
seen this issue many times. its usually the after a rebuilt and usually the bearing farthest from the oil pump. the initial start up after a build is suppose to be cranking only, no starting. gotta make sure the oil gets to all the bearing before first start up.
I’m guessing it was an oil pressure problem?
No. Oil pump checked out.
@@nwbklr yeah that was my guess in the beginning lol
Could be improper fitnent of the bearing, not lunricated before being fitted, couldve had oil under it when being fitted which wouldve caused it to slip and then just start spinning its not always down to oil pressure
@@Kieran_OPC I've actually seen this here on YT , some obscure "professional" shop doing a 30 minute build video, someone actually putting lube on the wrong side of a cap shell!! Even here, we see these guys removing main-caps from fully torqued down , to fully un-torqued...just buzzing things off as fast as they can..."some people, you just can't reach...".
@@nwbklr So did the bearing...journal blocked.....= spun bearing
My guess: metal went from where its meant to be to where it's not, lol 🤣
Good job lads. Not everyone would do such a responsible after sell service. Brad is absolutely delighted I reckon.
I knew from the Give Away Vid when they pulled over on the test drive!! That noise is internal when a bearing spins. It's a Hellacious Sound! I feel bad you pulled it out then put it back in. Just to replace It! Live and Learn!
I believe the MR2 would be even more awesome with a V6 option straight from Toyota
2JZ MR2?
@@raverick187 not 2JZ. 2GR. 👍🏻
It seems if they would have done a stock rebuild on the motor, they could have avoided this whole situation.
The thin sheet material is the bearing being extruded out from between the crank and the sides of the rod big end, as the piston slams the upper bearing shell into the journal. Once enough material has exited, the locking tabs no longer work (or exist) and the lower shell can spin too, or the upper shell remnants will spin and nest inside the lower shell. Either way, the rod is junk and probably the crank too. Could be from debris imbedding into the bearing shell, possibly from a careless oil filter change in the past or a bad filter allowing a large chunk to bypass. Heavy bits would tend to stay going straight down the oil galley until forced to turn, I.E. hitting the back end of the passage and then being pushed down into the last oil galley leg, entering the rear main cap, scratching that last main bearing on their way out to the #6 rod bearing where it was pounded into the soft bearing and slowly over time chewed away at the crank journal until friction overcame lubrication and everything went South.
This is a common problem on 2GR's its mainly due to the oil jets not properly lubricating piston #5 not enough oil lubricating means for friction causing it to fail.
Something had to be in the oil to score the bearing and ruin it so fast on one rod !!
Earl Moorhead scoring a bearing usually doesn't lead to a spun bearing. Only thing that really destroys a bearing that quick and like that is pure lack of oil.
DirtyMechanic scored bearing shows that there is dirt in the system (in the oil ) lack of oil could also ruin a bearing quick but it would show on all bearing not just one rod 30 years of racing and seeing debris get into motor can plug up oiling system to one rod since there is sign on the other bearing it’s a real good guess that something was in the oiling system
Earl Moorhead it was the last bearing to get oil in the bottom end so if the pump did run dry it it would be the first bearing to suffer. All the scoring will be from bearing material circulating through the engine. Old mate is right just a lack of oil
Ryan Mclafferty lack of oil would show up on main bearing as well as you see all bearing looked new we know it’s lack of oil but why ??? Two things I know one is something plugged the oil hole to that bearing one is bearing moved and covered the hole due to stretched rod bolts or heat the other is something plugged the passages to that journal but to just say lack of oil to me means the oil in the pan ran dry I’m saying I don’t believe the oil pan was low on oil sucking air and only damaging one rod bearing that the sign I saw watching this little bit of info from the video 👍👍🔥🔥🔥🔥
Honda integra dc5
I know this is a few months ago now, but as soon as i saw the flattened bearing in the last video, i knew exactly what happened as i had the exact same happen on my old Scirocco about 10 years ago. No reason, it just spun. The crank looked like a freshly ploughed field...
Glad you did this. Had a feeling, but good to know for sure. (Yeah I just found your channel & am catching up. lol)
For the love of God ditch that S14 tail pipe it makes my eyes bleed every time I see it 😭
It don’t cost much to rebuild an engine especially if ur giving it to a subscriber do ittt right
If it ain't broke dont fix it.
The 3S-GE in my old '87 Celica GT-S threw a bearing as well which sucks, I would suggest rebuilding this engine to be a HP monster
@ 13:54 you can see heat discoloration on rod counterweights and main journal counterweights (where the bearings installed correctly?) maybe it was rebuilt or ran low on oil and had a quick loss of oil pressure during a pull or hard cornering.
I’m former Lexus technician every 2006-up engines has many problems from weak valve springs, piston rings(oil consumption/misfires), timing cover oil leaks...recalls/campaign service and heavy line/engine rebuild is daily thing now a days, only time we pull a engine out oil sludge pre 06’. Probably that motor was rebuilt for a recall years ago...I’ve 91’MR2 turbo I personal hate working on it so I feel your pain and tell that guy it’s not a civic!
That pully hitting engine mount knocked timing out
The 2gr-fe that came in the Tacoma trucks(oil cooled) had an issue with the rod bearings not seating correctly. Thus resulting in randomly spun bearings. It is a common failure. Just like the water pumps on all 2gr engines are known to fail around 120k miles. The second engine you got was from either a camry or a es350. They are a much stronger, healthier version of the engine. Hope that explains it a bit more.
Rebuild it with forged internals, try to find the rare trd supercharger that toyota makes for this engine, either from a Lotus or the Aurion TRD from Australia and see how much you can gain from it. I’d say heck even find a regular beater and restomod that to be daily driven. That’d be an awesome project!
I saw the last video where you guys found out that the motor was shot and had to do a LOT of troubleshooting to find out what happened; there were some salty morons who claimed to know why you didn't recognize the sound and all that crap when they could.
I'm a first time car guy, and even I didn't know of this until you guys showed the con rod bearing that literally ground itself apart. It takes guts to own up, and courage to follow up and show us as an educational video of what we can expect. Kudos, and thanks for the video! 👍
CylinderSupportSystem.com needs that block for R&D!!! Will send back with closed deck looking pretty for your showroom!!
Possibly the force created from the crank pulley bolts rubbing on the engine mount pushing all the force on the rear most rod first as its closest to the flywheel & clutch. Being pushed back the other direction when the clutch pedal is depressed. Correct me if I'm wrong, but the rest of that was pretty fresh & in good condition. I'd be having the mains & big ends cleaned up, fore & aft movement measured & the correct thickness thrust bearings installed on reassembly.
It was the water pump pulley bolts not the crank.
Not enough break in. Also check the oil journals for clogging. Polish the crank new bearing. Twin turbo.
Great job at finding the problem. Enjoyed the tear down process, too. Good luck on future projects.
Always dig disassembly. Especially when diagnosing something. Nice video!
After seeing EVERYTHING that happened with this car and how you guys responded, how the fuck could I NOT subscribe.
Love this energy, fam.
This engine was rebuilt as indicated by the appearance of the good bearings. The babbitt (outer bearing mateial) indicates there is no mileage on them; that babbitt wears in before the first oil change and the bearings have a different appearance.
The single scores on some bearings are from contamination when rebuilding. You can clean engine parts in a jet wash twice and still have rag material/dust/metal stuck somewhere from just setting the engine parts down in a shop nothing short of surgical-room clean.
Contamination or improper tolerances (reference the OEM service manual and use calibrated micrometers) I think are the two most frequent reasons for engine failure within the first hour of running.
Source: rebuilt a 600+whp honda engine while taking engine building classes at a community college. 2 years later it's still kicking it.
Since the block and all is in good shape would like to see you guys rebuild it for max hp!
I absolutely know nothing about cars yet I sit here for hours watching you guys content.
My thoughts are that the oiling system wasnt primed properly as the first start had a horrible rattle due to the top end not having oil pressure yet. They had talked about idling it for a while to see if oil pressure would make it go away but by that point it was too late.
You need to do this with every car to reassure it's 99.9% solid
Looks like oil surge/lack of oil, see where the pick-up sits may have used all the oil in the pan to where the oil level goes below the pick up. Under hard acceleration or cornering if you have a high capacity pump and standard pickup height occasionally you can get oil starvation. Lower your pick-up height and increase oil capacity in the sump if possible, adding baffels in the sump around the pick-up can also help.
Sunoco + Bad Apple = One Badass FD
if i remember right there was a loud ticking from the VVT on first start up and that is normal but it did seam excessively long which says to me there wasn't enough oil pressure or the pump didn't want to prime itself. it went to that other shop and got the oiling system primed then no more ticking but i think the damage was already done. if that bearing is one of the last ones to get oil it may have spun partially and welded itself to the rod holding on for a good while until finally a good hard run loosened it back up and just obliterated it. that's the only scenario that makes sense to me with the information given. or if you wanted to test the injector to see if that one was causing a severe lean condition. that is unlikely but could smoke 1 bearing. automotive computers are pretty slow and can miss things if the sensors are reading within certain parameters but like i said injector is unlikely. the computer should have found some sort of fault if it was that.
I thought the same thing, probably had low oil pressure at the first start. Got "fixed" enough for idle and some light driving, but not enough for a full send. It may have continued to have lower than spec pressure and that hard drive just did it in.
this is 100% what i was thinking would happen when this video was posted i was a bit worried we'd see a spun bearing after that
So how could they have avoided this? Cranked it for 15 seconds with no fuel before first start?
@@Blinglaw how could they have avoided this then? Aside from disassembling and using assembly lube on each part?
You can definitely tell the motor was rebuilt at some time there are heat marks all over the crankshaft. if you look at the crankshaft you will see some bluing or discoloration on it and that is where it got hot before and they reused the crankshaft when they rebuilt it. I would also bet that is what caused the oil starvation to that rod bearing, because when it spun a bearing before some pieces of metal went through the oil passages and ended up blocking that one either partially or completely and starved it of oil.
If it was rebuilt and the bearing tolerance was too tight or too loose itll spin a bearing pretty quick. Especially if its on the loose side. The oil fil wont hold up causing the bearing to start grinding at higher rpm. Couldve either been a defective bearing. Or the crank may have been reworked and the size was off
Damnnn...well thank god you guys fixed the mr2
The MR2 had to be the best build till now! 🔥
That was the #6 bearing towards the rear. If any pressure related issue back there, it would be some kind of alignment issue with the transaxle. This can happen if you do not use all the alignment collers when bolting up the transaxle.
What exactly would the alignment collar do? And where would you put it. The Mr2 trans just slides right on, there wouldn’t be anything to align it any better
Crazy it didnt lock up. Def wild. Guarentee it was from dry start. Motor sat forever, oil film drys up and gets tacky. First fire up tacky parts stick and shift just before oil presure makes its way to all oil surfaces. This is why acusump oil accumulators are so essential for first fire ups. Prelube the oil system before motor ever even rotates.
Same thing just happened on my 2017 wrx. Car had 31k on it when it went. Oil pump was good, and it had regular oil changes with the proper oil. I still dont understand why it happened.
too much time spent accelerating can starve the oil pickup (the oil sloshes to one side and stays there away from pickup / centripetal force)
which is why race cars use dry sump oil systems (oil under constant pressure, never in a slosh bucket)
If the rod cap bolts didn't get torqued & stretched correctly, that can cause failure.
IDK if you can do this with a 2GR-FE oil pump, but I shim mine to get a little more pressure out of them.
be4 you flipped it i thought either piston slap, rod knock or something with the valves. now its time to watch and see if i was right.. :)
If I remember correctly, it's the #5 piston gets more stress as a result of the incoming EGR gases. This results in piston #5 getting dirty and wearing faster causing additional stress on the rod and bearings.
This type of stuff is great. I would suggest for a basic teardown be done when you get salvage engines. Maybe the first engine had damaged bearing surfaces when you guys got it. Taking a look at crank and rod bearings is a pain in the butt, but could save you guys a lot of time, if you happen to get a hurt engine. You guys do amazing work.
This is good shit! Its inspiring me to build the v6 in my venza
Gotta put the bad apple on that race juice 🏎️💨🔥🔥🔥