Potential Cause of rumored GR86’s blown engine? Seal packing(RTV) was peeled off - Page 60 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Robertw · 09-28-2022, 10:58 AM

Quote:

Originally Posted by dreamwonder

Spoke too soon. Guess my number is up.

Toyota denied warranty. Goodwill denied as well.
Reason:
1. Previous gen oil filter was used.
2. 0w30 oil was used.
3. Car hit 129mph at 8300rpm on 5th gear ???

Car saw 32 days with 14k total miles before engine failed. If I was at fault, I will own up to it. But wow...this is my 3rd 86 and have hundreds of days on previous 2 cars.

1. why use the previous gen filter? But also, didn't know a warranty could be denied over an oil filter, would a purolator or fram filter spec'd for the GR be cause for warranty denial?

2. how'd toyota know which oil weight you were running?

Petah78 · 09-28-2022, 11:01 AM

Quote:

Originally Posted by dreamwonder

Spoke too soon. Guess my number is up.

Toyota denied warranty. Goodwill denied as well.
Reason:
1. Previous gen oil filter was used.
2. 0w30 oil was used.
3. Car hit 129mph at 8300rpm on 5th gear ???

Car saw 32 days with 14k total miles before engine failed. If I was at fault, I will own up to it. But wow...this is my 3rd 86 and have hundreds of days on previous 2 cars.

Sorry to hear. Spun bearing? Oil and Filter is BS excuse, though I have noticed a common trend with with failed engines, overrev. I am assuming in your case, it would have been a downshift as the limiter would have prevented it on accel. Any idea how the other bearings and pick up looked like? What was the oil change frequency/interval?

Tcoat · 09-28-2022, 11:04 AM

Quote:

Originally Posted by dreamwonder

Spoke too soon. Guess my number is up.

Toyota denied warranty. Goodwill denied as well.
Reason:
1. Previous gen oil filter was used.
2. 0w30 oil was used.
3. Car hit 129mph at 8300rpm on 5th gear ???

Car saw 32 days with 14k total miles before engine failed. If I was at fault, I will own up to it. But wow...this is my 3rd 86 and have hundreds of days on previous 2 cars.

Guessing they denied on the "over rev" more than oil?
Do you know exactly what failed?

Robertw · 09-28-2022, 11:10 AM

Also, how does a 5th gear over rev happen anyways, it would have to be on down shift, so how fast were you moving in 6th gear to set this failure up, jesus? If it was 3rd gear I would understand, but 5th?

greengs · 09-28-2022, 11:13 AM

Quote:

Originally Posted by Robertw

1. why use the previous gen filter? But also, didn't know a warranty could be denied over an oil filter, would a purolator or fram filter spec'd for the GR be cause for warranty denial?

2. how'd toyota know which oil weight you were running?

I'm assuming when they got presented with a blown engine they analyzed the oil?

Stories like this make me want to service mine at dealer so there is no confusion about things like OEM filter being the wrong color or some such thing.

Tcoat · 09-28-2022, 11:16 AM

Quote:

Originally Posted by Robertw

1. why use the previous gen filter? But also, didn't know a warranty could be denied over an oil filter, would a purolator or fram filter spec'd for the GR be cause for warranty denial?

2. how'd toyota know which oil weight you were running?

Interesting. Both gens use the same part number filter (90915-YZZF1).
The warranty language says "comparable" so any properly speced filter should be fine.

NoHaveMSG · 09-28-2022, 11:16 AM

Quote:

Originally Posted by Petah78

What is the pattern you are seeing? RTV or failures?

Problem is that we have not seen any UOA of the failed engines while it was still running (or again, maybe i missed this info?) thus we do not know if they were suffering from a gradual slow death. All the positive UOAs that we have seen thus far are from engines that have not failed and very well might never fail. What i am seeing is that more evidence suggests that RTV is not causing premature wear so these spun bearings is likely not related.

Why would you do this though? You do UOA's to gauge the health of an engine, not one that is dead. If it spun the bearing the noise is all the diagnosis I need. All the UOA is going to show you on a failed engine is a high amount of bearing material and metal. If you are curious on if the issue is gradual then make a 22+ UOA thread and hopefully people keep following up and posting in it.

dreamwonder · 09-28-2022, 11:21 AM

That is all the info I got over the phone with the service advisor, will know more once I see the papers.

I was scratching my head on that overrev too...car never saw above 111mph on the day it happened.

Engine blew 2 laps after this. I did hear some weird sound on that last turn...not sure if its mine or car in front.

I feel a bit bummed out and disappointed. I've been an instructor for the region's Porsche, BMW and various other clubs, I have pretty much been a ambassador for the 86 platform for the pass 7 years at the HPDEs.

Petah78 · 09-28-2022, 11:24 AM

Quote:

Originally Posted by NoHaveMSG

Why would you do this though? You do UOA's to gauge the health of an engine, not one that is dead. If it spun the bearing the noise is all the diagnosis I need. All the UOA is going to show you on a failed engine is a high amount of bearing material and metal. If you are curious on if the issue is gradual then make a 22+ UOA thread and hopefully people keep following up and posting in it.

What i meant is for the dead engines that have been reported, did any of the owners do UOA on their previous oil changes before the engine blew up? If so, did it show any warnings?

NoHaveMSG · 09-28-2022, 11:33 AM

Quote:

Originally Posted by Petah78

What i meant is for the dead engines that have been reported, did any of the owners do UOA on their previous oil changes before the engine blew up? If so, did it show any warnings?

That makes way more sense.

I'd still recommend a 22+ UOA thread be created for those who have skin in the game. There was a long running one for us peasant 1st gen'rs.

Robertw · 09-28-2022, 11:45 AM

Regardless how this motor blew up, at this point it's overall concerning the number of motors that have popped. I understand it's technically not that many, but it seems to be growing. I've never owned a subaru, but I have friends that have, and I've seen all the meme's, and maybe these motors just aren't up to the task or I'm used to other platforms being significantly more robust.

Personal opinion, but I don't think anyone should be tracking these cars without at the least an oil cooler. I understand it can "void" your warranty, but it seems like these cars need all the help they can get. There has to be an oiling issue, maybe even oil pan baffles are required in conjunction with an oil cooler.

As to why street car motors are spinning bearings at 12k miles, that is another mystery all together.

dreamwonder · 09-28-2022, 11:47 AM

Quote:

Originally Posted by Robertw

1. why use the previous gen filter? But also, didn't know a warranty could be denied over an oil filter, would a purolator or fram filter spec'd for the GR be cause for warranty denial?

2. how'd toyota know which oil weight you were running?

I emailed them all my receipts as they wanted prove of the 6 oil changes I did.

dragoontwo · 09-28-2022, 11:49 AM

Quote:

Originally Posted by Tcoat

Interesting. Both gens use the same part number filter (90915-YZZF1).
The warranty language says "comparable" so any properly speced filter should be fine.

The US Toyota site shows SU00308412 for the GR86 only. It shows your part number for 13-20. Where did you get the part number?

dreamwonder · 09-28-2022, 11:52 AM

Quote:

Originally Posted by dragoontwo

The US Toyota site shows SU00308412 for the GR86 only. It shows your part number for 13-20. Where did you get the part number?

For reference, oil filters used:
90915-YZZS1

09-28-2022, 11:21 AM	#834
dreamwonder Senior Member Join Date: Apr 2015 Drives: GR86 2022 Location: Boston MA Posts: 295 Thanks: 10 Thanked 197 Times in 72 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	That is all the info I got over the phone with the service advisor, will know more once I see the papers. I was scratching my head on that overrev too...car never saw above 111mph on the day it happened. Engine blew 2 laps after this. I did hear some weird sound on that last turn...not sure if its mine or car in front. I feel a bit bummed out and disappointed. I've been an instructor for the region's Porsche, BMW and various other clubs, I have pretty much been a ambassador for the 86 platform for the pass 7 years at the HPDEs. Last edited by dreamwonder; 09-28-2022 at 11:40 AM.

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09-28-2022, 11:10 AM	#830
Robertw Senior Member Join Date: Nov 2021 Drives: 1996 Turbo Miata Location: MA Posts: 150 Thanks: 54 Thanked 92 Times in 48 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Also, how does a 5th gear over rev happen anyways, it would have to be on down shift, so how fast were you moving in 6th gear to set this failure up, jesus? If it was 3rd gear I would understand, but 5th?

09-28-2022, 11:45 AM	#837
Robertw Senior Member Join Date: Nov 2021 Drives: 1996 Turbo Miata Location: MA Posts: 150 Thanks: 54 Thanked 92 Times in 48 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Regardless how this motor blew up, at this point it's overall concerning the number of motors that have popped. I understand it's technically not that many, but it seems to be growing. I've never owned a subaru, but I have friends that have, and I've seen all the meme's, and maybe these motors just aren't up to the task or I'm used to other platforms being significantly more robust. Personal opinion, but I don't think anyone should be tracking these cars without at the least an oil cooler. I understand it can "void" your warranty, but it seems like these cars need all the help they can get. There has to be an oiling issue, maybe even oil pan baffles are required in conjunction with an oil cooler. As to why street car motors are spinning bearings at 12k miles, that is another mystery all together.

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