2014 Corvette Engine Damage
Safety Car
Joined: May 2003
Posts: 3,583
Likes: 14
From: Everywhere
If YOU didn't do anything as I said, then you are speculating, correct?
So if you weren't there, you can NOT truly say it wasn't a filter related failure.
Yea, I'll be sure to follow your advise here on out.
Racer
Joined: Jan 2002
Posts: 281
Likes: 43
From: Gainesville GA
4,500 miles on the clock, and one oil change - so far no issues...
The Sting Ray is a major winner for Chevrolet and given the significant amount of bad press GM is getting with its 25,000,000 recalls I have to believe that GM will work hard to fix any functional issues with the product while providing its customers with fair and effective repairs...
Failure to do so, is NOT AN OPTION if they expect to remain in business...
Pro
Joined: Dec 2004
Posts: 667
Likes: 36
It is the last paragraph of the c7 section of the article (page after the one I pasted).
Melting Slicks
Joined: Nov 2007
Posts: 2,472
Likes: 75
From: Cleveland, OH
Doesn't it only deactivate in ECO Mode. If you don't use ECO, you wouldn't have to worry anyhow.
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Racer
Joined: Mar 2012
Posts: 393
Likes: 17
Fight for a new car...
Instructor
Joined: Sep 2013
Posts: 116
Likes: 0
Team Owner
Joined: Feb 2013
Posts: 22,598
Likes: 14,556
The thrust bearing change is new to me... curious to learn more than that. I thought it was odd that people were having issues from torque tube install. That was NEVER a concern working on C5/C6s. You didn't want to be ham fisted and force it in, but I've never ever heard of a bearing failure from a torque tube install and many many many folks have done DIY clutch swaps over the years.
Last edited by RapidC84B; Sep 12, 2014 at 06:48 PM.
Race Director
Joined: Feb 2008
Posts: 19,691
Likes: 322
From: Alexandria VA
The fact that these seem to be happening while cruising leads one to suggest its not necessarily the thrust bearings failing under load, but some other factor.
The C&D track stated that GM stated it was an 'oil filter' failure allowing metal particles to get in the oil. This completely ignores the root cause analysis, most notably, how did metal shavings get in the oil in the first place?
In fact, the original Chevy 265's didn't even have oil filters. While long term reliability suffered, they weren't popping at such low mileage.
There's either an error occurring in production, a batch (or all) of faulty internal engine parts, or tolerances that simply aren't matching up in the motors.
I'd love to tear one down and do an analysis on it or even look at some pictures but alas, that's not happening.
I'm wondering if the AFM is causing detonation issues (hence a broken rod). All speculation of course.
The C&D track stated that GM stated it was an 'oil filter' failure allowing metal particles to get in the oil. This completely ignores the root cause analysis, most notably, how did metal shavings get in the oil in the first place?
In fact, the original Chevy 265's didn't even have oil filters. While long term reliability suffered, they weren't popping at such low mileage.
There's either an error occurring in production, a batch (or all) of faulty internal engine parts, or tolerances that simply aren't matching up in the motors.
I'd love to tear one down and do an analysis on it or even look at some pictures but alas, that's not happening.
I'm wondering if the AFM is causing detonation issues (hence a broken rod). All speculation of course.
The Consigliere
Joined: May 2006
Posts: 22,993
Likes: 6,042
From: 2023 Z06 & 2010 ZR1
The thrust bearing change is new to me... curious to learn more than that. I thought it was odd that people were having issues from torque tube install. That was NEVER a concern working on C5/C6s. You didn't want to be ham fisted and force it in, but I've never ever heard of a bearing failure from a torque tube install and many many many folks have done DYI clutch swaps over the years.
C&D lunched two engines. One on a car that was tracked and one in a long-term test car, which if they didn't hammer on that one hard, brings me back to the tt as opposed to the crank walking, altho the latter can happen under moderate load as well.
Last edited by OnPoint; Sep 12, 2014 at 06:44 PM.
Team Owner
Joined: Feb 2013
Posts: 22,598
Likes: 14,556
Texas Speed's teardown album clearly shows the new 1/2 thrust bearing
http://s851.photobucket.com/user/Tex...tml?sort=3&o=8
Originally Posted by Texas Speed Album
LT1 thrust bearing; notice no thrust on the cap side!
Race Director
Joined: Feb 2008
Posts: 19,691
Likes: 322
From: Alexandria VA
I'm wondering if the thrust bearing separating itself from the journal bearing is the issue. If it were a circular bearing, it can't really go anywhere. With that, it could seem after repeated cycles or under enough load, the bearing could shear/fall off. I think this thrust bearing is also located on the journal between 4-6 so could explain why SHTF there. . .
Le Mans Master
Joined: Mar 2010
Posts: 5,909
Likes: 651
From: St. Louis
I wonder what the split is between 2014 v 2015. Base v Z51.
When I read all the e-diff issues with the 2014, I almost didn't order a Z51 but in the end ordered a 2015 Z51. Now, with all the engine issues, hummmm. I stopped my 2014 order and waited for a 2015, I hope going forward with a vette at all will not be a mistake.
BMW (335's) had a lot of issues and I went through some of that. For my first vette, I just want it to be a great experience.
Best of luck to those that are having issue.
When I read all the e-diff issues with the 2014, I almost didn't order a Z51 but in the end ordered a 2015 Z51. Now, with all the engine issues, hummmm. I stopped my 2014 order and waited for a 2015, I hope going forward with a vette at all will not be a mistake.
BMW (335's) had a lot of issues and I went through some of that. For my first vette, I just want it to be a great experience.
Best of luck to those that are having issue.
The Consigliere
Joined: May 2006
Posts: 22,993
Likes: 6,042
From: 2023 Z06 & 2010 ZR1
I'm wondering if the thrust bearing separating itself from the journal bearing is the issue. If it were a circular bearing, it can't really go anywhere. With that, it could seem after repeated cycles or under enough load, the bearing could shear/fall off. I think this thrust bearing is also located on the journal between 4-6 so could explain why SHTF there. . .
Team Owner
Joined: Jul 2006
Posts: 97,155
Likes: 1,471
From: Calgary, AB. There's a reason why white was the only color offered on every year Corvette. Proud Canadian German Jamaican!
St. Jude Donor '09, '12-'13-'14-'15-'16-'17
It's a shame you can't use your four FREE oil changes at 500 mile intervals. I changed my first oil change at 1400 miles. I hope I did not wait to long. I'm wondering if it matters if the engines that are having all the trouble are Wet or Dry slump or Both? I'm not going to use the AC Delco PF64 filter any more. Sure hope GM gets a handle on this growing problem. I wish there was some way to gather data to state: root cause, vin number, wet or dry slump, ect, ect..