[Z06] Valve spring replacement
Drifting
Joined: Dec 2000
Posts: 1,255
Likes: 50
From: Clayton, NC north carolina
right in the middle of doing this right now... 1. pac springs are your friend.... 2. smith bros or strab makes a good bronze bushing trunion kit.. (you just need a bench vice a 7/8 and a 9/16 to press them out.) and finishing it up with evans coolant. and a steam vent kit....
Melting Slicks
Joined: Jan 2008
Posts: 2,526
Likes: 364
From: NSL UT
Originally Posted by wamara
GM's replacement springs are blue.
Thread Starter
Race Director
Joined: Aug 2001
Posts: 18,236
Likes: 36
From: Haymarket VA
St. Jude Donor '05-'06-'07-'08-'09-'10
thats what I’m waiting for. The previous owner did a few things. So I’m wondering if this was done. Will be nice to be able to return all this stuff
Melting Slicks
Joined: Jan 2008
Posts: 2,526
Likes: 364
From: NSL UT
Originally Posted by MBVette
thats what IÂ’m waiting for. The previous owner did a few things. So IÂ’m wondering if this was done. Will be nice to be able to return all this stuff
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Melting Slicks
Joined: Aug 2013
Posts: 2,491
Likes: 315
St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22
Here is a sticky regarding this subject:
https://www.corvetteforum.com/forums...-failures.html
Team Owner
Joined: Jul 2006
Posts: 22,692
Likes: 477
From: Douglas County WI
I think you will have to take a peek down through the oil filler witha flashlight to be able to tell what color they are. A borescope would make it easier but one spring can be seen without one. Or maybe a small inspection mirror would fit down through the filler hole.
Safety Car
Joined: May 2016
Posts: 4,644
Likes: 1,831
From: Erlanger, Kentucky
I have read that when running a larger cam, valve springs should be treated as a wear item similar to tires. So I have read that 25 or 30K miles is a good rule of thumb. Considering that the factory Z06 cam is not a big cam, I would think 100K would be fine. But I don't think it is a bad idea to change them more often. It's only $70 for a set of stock springs a couple of hours of your time to keep the valve train tip top.
Thread Starter
Race Director
Joined: Aug 2001
Posts: 18,236
Likes: 36
From: Haymarket VA
St. Jude Donor '05-'06-'07-'08-'09-'10
I just got my intake and exhaust seals. They look exactly the same with a different part number.
Is is there a difference between them?
Is is there a difference between them?
Safety Car
Joined: May 2016
Posts: 4,644
Likes: 1,831
From: Erlanger, Kentucky
What brand of seals? I used Felpro when I did mine and the rubber gasket part was black and brown. Can't remember which is for what. The metal part was a coated brown.
Melting Slicks
Joined: Jan 2008
Posts: 2,526
Likes: 364
From: NSL UT
Originally Posted by Spaceme1117
I have read that when running a larger cam, valve springs should be treated as a wear item similar to tires. So I have read that 25 or 30K miles is a good rule of thumb. Considering that the factory Z06 cam is not a big cam, I would think 100K would be fine. But I don't think it is a bad idea to change them more often. It's only $70 for a set of stock springs a couple of hours of your time to keep the valve train tip top.
Thread Starter
Race Director
Joined: Aug 2001
Posts: 18,236
Likes: 36
From: Haymarket VA
St. Jude Donor '05-'06-'07-'08-'09-'10
hot Everything off and just test fit the comp cams tool and it doesn’t even come close to fitting.
What spring conpression tool tool are you using.
What spring conpression tool tool are you using.
Last edited by MBVette; Dec 9, 2017 at 04:21 PM.