Notices
C6 Corvette ZR1 & Z06 General info about GMís Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track Advertisement

2010 Z06 Oil "puff"

 
Old 02-06-2019, 09:45 AM
  #61  
Jfryjfry
CF Senior Member
 
Member Since: Oct 2017
Posts: 489
Liked 37 Times in 34 Posts
Default

Originally Posted by meridock View Post
Need the tires. 37k on the original tires - I think that is a kind of a record. (and a testament on how I drive)


tell me more about the parts list... What do they buy me? I already would be getting a new throw out bearing in the clutch install, but what benefit is the billet one, and the rest of it?
sure....
there is a plastic piece on the stock slave cylinder that the bearing rides on that can overheat and melt and have to be replaced. Itís not that common, but since the effort to get there is so high if it does have a problem that now is the time to do it.

The slave bleeder is nigh impossible to reach so a remote bleeder will let you actually flush and bleed it with minimal work.

The oem harmonic balancers can go bad but, Iíll backtrack on this one - I believe the ls3ís had the big issues. Plus the warranty concerns might mandate oem. Which would probably be fine.

If you dont track your car, the oil mods arenít necessary. And even if you did, unless you were pulling long hard lateral gís - cornering - it would probably be fine. But Improved Racingís oil pan baffle is easy to install and quick to put in with the motor out. Not easy or quick to install with motor in.

motormounts go bad on these things - on every car, really - so do it now while itís all apart.

Last edited by Jfryjfry; 02-06-2019 at 09:46 AM.
Jfryjfry is offline  
Old 02-06-2019, 09:54 AM
  #62  
meridock
CF Senior Member
Thread Starter
 
meridock's Avatar
 
Member Since: Jul 2009
Location: Haymarket VA
Posts: 419
Liked 15 Times in 14 Posts
Default

Thanks for the explanations - I will ask on these. we are going to bleed the clutch as part of a PM anyways so we will be in the clutch.


Side note - I am really disappointed in the maintenance the dealership has done and the many little things they missed.
meridock is offline  
Old 02-06-2019, 10:49 AM
  #63  
smitty1966
CF Member
 
smitty1966's Avatar
 
Member Since: Oct 2014
Location: Woodlands Texas
Posts: 86
Likes: 0
Liked 2 Times in 2 Posts
Default

It is frustrating that machine shop errors at a supplier have caused so many problems with what is arguably the greatest NA engine GM ever built.
smitty1966 is offline  
Old 02-06-2019, 12:23 PM
  #64  
MTPZ06
CF Senior Member
Support Corvetteforum!
 
MTPZ06's Avatar
 
Member Since: Dec 2008
Location: Honolulu HI
Posts: 12,885
Liked 1,166 Times in 1,033 Posts
Default

Originally Posted by meridock View Post
It is a part that is external to the engine oil lubricated engine. so maybe? I will ask Tony though. a smoother running motor would not be a bad thing.
My thought process is that its bolted to the rotating assembly (crank)...and if by some stroke of bad luck you spin a bearing; right or wrong, it gives them something to point at.
MTPZ06 is offline  
Old 02-06-2019, 02:11 PM
  #65  
Nowanker
CF Senior Member
 
Member Since: Nov 2013
Location: SF Bay Area Ca
Posts: 1,441
Liked 121 Times in 107 Posts
Default

Not to hijack... doesn't the Improved Racing oil pan baffle require the ARP main studs for installation? I haven't looked at their site lately...
Congrats on the new engine!
Nowanker is offline  
The following users liked this post: Nowanker
meridock (02-06-2019)
Old 02-06-2019, 02:29 PM
  #66  
Mordeth
CF Senior Member
 
Mordeth's Avatar
 
Member Since: Jun 2005
Location: Rochester NY
Posts: 2,283
Liked 1,024 Times in 618 Posts
2018 C6 of Year Finalist
St. Jude Donor '10, '17
Default

Originally Posted by Nowanker View Post
Not to hijack... doesn't the Improved Racing oil pan baffle require the ARP main studs for installation? I haven't looked at their site lately...
Congrats on the new engine!

No. As it is a baffle that goes inside the oil pan. It mounts using a spacer and two screws inside the pan. ARP mains have nothing to do with it. They do make a crank scraper and windage tray kit that can be bought for use with ARP main studs or without. But that is not an oil pan baffle. I use both baffle and crank scraper.
Mordeth is online now  
Old 02-06-2019, 09:17 PM
  #67  
meridock
CF Senior Member
Thread Starter
 
meridock's Avatar
 
Member Since: Jul 2009
Location: Haymarket VA
Posts: 419
Liked 15 Times in 14 Posts
Default

Originally Posted by smitty1966 View Post
It is frustrating that machine shop errors at a supplier have caused so many problems with what is arguably the greatest NA engine GM ever built.


from my discussions on this - the LS7's actually have a flaw. It is in the Valve to valve guide angle that I was told the valve wants a specific angle but the guide is .5 degrees off from that. I honestly think this is 100% a design flaw to a great motor.If every single head seems to get an issue - a supplier would get its *** handed to it for a bad part, or spec.
meridock is offline  
Old 02-06-2019, 09:53 PM
  #68  
Apocolipse
CF Senior Member
 
Member Since: Aug 2013
Posts: 2,097
Likes: 0
Liked 141 Times in 128 Posts
Default

Specific angle to what?
Apocolipse is offline  
Old 02-06-2019, 10:05 PM
  #69  
meridock
CF Senior Member
Thread Starter
 
meridock's Avatar
 
Member Since: Jul 2009
Location: Haymarket VA
Posts: 419
Liked 15 Times in 14 Posts
Default

Anecdotally, I heard the valve is set at something like 12 degrees but the valve guide is something like 12.5 degrees (or vice versa) so the car just running would apply a load to the brass guides that would over time impact the guide. I am not an expert or anything so I would not want to be considered an 'authority'. but a titanium valve pressing a brass guide would likely yield the guide being basically sawed.


My personal opinion is still - design flaw in the valve and guide alignment PURELY on the high incident rate of failure. others in this thread just add to this conviction. Valves dropping or out of spec in 30k miles???
meridock is offline  
Old 02-06-2019, 10:12 PM
  #70  
smitty1966
CF Member
 
smitty1966's Avatar
 
Member Since: Oct 2014
Location: Woodlands Texas
Posts: 86
Likes: 0
Liked 2 Times in 2 Posts
Default

I believe it is a machining flaw, not a design flaw. If it were a design flaw it would have impacted all my valves, not one. The machining at the vendor had too much allowed variation causing angles to be off in some cylinders. The shop that repaired mine machined them to the proper GM spec and 22,000 miles later no problem.
smitty1966 is offline  
Old 02-06-2019, 10:20 PM
  #71  
meridock
CF Senior Member
Thread Starter
 
meridock's Avatar
 
Member Since: Jul 2009
Location: Haymarket VA
Posts: 419
Liked 15 Times in 14 Posts
Default

I can accept this also. machining variance could also allow for that .5 degree.


But all these replacements and failures and GM has not refined the spec the vendor is baselined against? this is years in the making for the ls7.
meridock is offline  
Old 02-06-2019, 10:33 PM
  #72  
smitty1966
CF Member
 
smitty1966's Avatar
 
Member Since: Oct 2014
Location: Woodlands Texas
Posts: 86
Likes: 0
Liked 2 Times in 2 Posts
Default

The parts are robust enough and most of the cars almost never see high RPM operation so it took years to show up in enough volume to be apparent. Now GM won’t admit it.
smitty1966 is offline  
Old 02-06-2019, 10:37 PM
  #73  
meridock
CF Senior Member
Thread Starter
 
meridock's Avatar
 
Member Since: Jul 2009
Location: Haymarket VA
Posts: 419
Liked 15 Times in 14 Posts
Default

I literally reported my initial problems at <15k... if you see the above shop Z28 references this is a 9 year issue.
meridock is offline  
Old 02-07-2019, 12:32 PM
  #74  
MTPZ06
CF Senior Member
Support Corvetteforum!
 
MTPZ06's Avatar
 
Member Since: Dec 2008
Location: Honolulu HI
Posts: 12,885
Liked 1,166 Times in 1,033 Posts
Default

Guide to seat concentricity, or lack thereof by GM's supplier (Linamar) is what you're referring to...and can easily be remedied by a machine shop that understands the tolerances involved in a proper concentric valve job.
MTPZ06 is offline  
The following users liked this post: MTPZ06
meridock (02-07-2019)
Old 02-07-2019, 10:13 PM
  #75  
meridock
CF Senior Member
Thread Starter
 
meridock's Avatar
 
Member Since: Jul 2009
Location: Haymarket VA
Posts: 419
Liked 15 Times in 14 Posts
Default

Official approval granted to replace the long block. so now I await a large shipping crate. Looks like I will get the car home in time for March.
meridock is offline  
The following users liked this post: meridock
Landru (02-08-2019)
Old 02-09-2019, 09:47 PM
  #76  
JDebler
CF Senior Member
 
JDebler's Avatar
 
Member Since: Jun 2001
Location: Nashville area TN
Posts: 463
Liked 76 Times in 53 Posts
Default

Subbed to see how this continues.
JDebler is offline  
Old 02-10-2019, 07:00 PM
  #77  
meridock
CF Senior Member
Thread Starter
 
meridock's Avatar
 
Member Since: Jul 2009
Location: Haymarket VA
Posts: 419
Liked 15 Times in 14 Posts
Default

Motor is ordered. I expect it show up end of next week, or lastest the beginning of the following week. While the motor is out, we are doing a stock replacement of the clutch and flywheel, tires, and the shop will go through the whole car looking for issues like dying motor mounts, etc.


somehow even with the motor being warrantied I will end up poorer

Last edited by meridock; 02-10-2019 at 07:03 PM.
meridock is offline  
Old 02-10-2019, 07:19 PM
  #78  
Too-Fast
CF Senior Member
 
Too-Fast's Avatar
 
Member Since: Aug 2009
Location: Chester County Pennsylvania
Posts: 3,683
Liked 138 Times in 125 Posts
Default

I have not not been back to your thread since my original post, just read through the whole thing, congrats on getting the replacement.
Too-Fast is offline  
The following users liked this post: Too-Fast
meridock (02-10-2019)
Old 02-10-2019, 08:23 PM
  #79  
Gary '09 C6
CF Senior Member
Support Corvetteforum!
 
Gary '09 C6's Avatar
 
Member Since: Aug 2010
Location: Houston TX
Posts: 12,422
Liked 367 Times in 324 Posts
Default

Gary '09 C6 is offline  
Old 02-11-2019, 12:28 PM
  #80  
MTPZ06
CF Senior Member
Support Corvetteforum!
 
MTPZ06's Avatar
 
Member Since: Dec 2008
Location: Honolulu HI
Posts: 12,885
Liked 1,166 Times in 1,033 Posts
Default

Curious...did they diagnose or give you an explanation of the internal failure? They must have seen something evident enough to warrant a new motor.
MTPZ06 is offline  

Thread Tools
Search this Thread
Quick Reply: 2010 Z06 Oil "puff"


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: