Road trip cut short

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Apr 3, 2008 | 08:30 PM

#41

efranzen

Burning Brakes

Joined: Feb 2008

Posts: 982

Likes: 18

From: Seattle WA

Wow, this is a little scary. I just bought a 2002 Z06 that I plan on using for a daily driver for hopefully many years to come. Should I consider changing the valve springs now before I end up with a similar mess?

Apr 3, 2008 | 11:41 PM

#42

CamaroAJ

Pro Mechanic

Joined: Mar 2007

Posts: 397

Likes: 4

From: San Antonio, Texas

Quote:

Originally Posted by Bill Curlee

Warranty?????????????????????????? Or did you mod it and there was no coverage? Man that sux.

BC

its a friends car, yes it was warranty. i work at a dealer and took care of it for him.

Apr 3, 2008 | 11:42 PM

#43

CamaroAJ

Pro Mechanic

Joined: Mar 2007

Posts: 397

Likes: 4

From: San Antonio, Texas

Quote:

Originally Posted by efranzen

its cheep insurance if you plan on beating on it any. i know of people that replace them at least once a year because they beat on them so hard.

Apr 4, 2008 | 12:20 AM

#44

vjjack04

Melting Slicks

Joined: Apr 2007

Posts: 2,945

Likes: 1,115

From: Hereford AZ

Funny that many trashed the guys for identifying the obvious without diagnostics....the way it used to be done.

Maybe a few folks over-think the problem....bad gas..this ain't a cheap mexican dinner....

Sorry to hear your motor 'broke'.

Apr 4, 2008 | 01:16 AM

#45

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

Likes: 2,402

From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

Quote:

Originally Posted by efranzen

I have an 02 ZO6 and its driven hard daily. It's got 50K miles and I'm still on the same set of springs. I know people have broken springs but, I drive mine as a daily driver and its fine. It sees red line daily.

I have a major MODs ready to install so, my new springs will come in the form of Patriot Performance heads, gold springs and Ti retainers.

Bill C

Last edited by Bill Curlee; Apr 4, 2008 at 01:21 AM.

Apr 4, 2008 | 09:50 AM

#46

Billdog350

Drifting

Joined: Dec 2005

Posts: 1,720

Likes: 3

From: East Hampton CT

I would STRONGLY suggest replacing your rockers while you're in there. Either upgrade to the Yella Terra's that everyone is raving about, or just a new set of GM performance parts ones (cheaper)....One of my rockers failed at the same time the spring did and dumped all the roller bearings into the motor....needless to say it is good preventative maintenance!

Apr 4, 2008 | 12:11 PM

#47

Numb

Thread Starter

Instructor

Joined: Nov 2005

Posts: 228

Likes: 0

From: Austin Texas

Quote:

Originally Posted by CamaroAJ

you got luckey. 2007 Z06 with 2880 miles, 25mph in town. broken valve spring just like yours.
http://i25.photobucket.com/albums/c8...asonZ06006.jpg
http://i25.photobucket.com/albums/c8...asonZ06005.jpg
http://i25.photobucket.com/albums/c8...asonZ06004.jpg
http://i25.photobucket.com/albums/c8...asonZ06003.jpg
http://i25.photobucket.com/albums/c8...asonZ06002.jpg
http://i25.photobucket.com/albums/c8...onZ06001-1.jpg

good thing i planed on putting new valve springs in my car before the autocross in 2 weeks.

That's exactly what I was expecting to see when we pulled the head off. It would seem that when my valvespring broke, the two halves stayed stacked together, and prevented the valve from dropping.

Apr 4, 2008 | 12:14 PM

#48

Numb

Thread Starter

Instructor

Joined: Nov 2005

Posts: 228

Likes: 0

From: Austin Texas

Quote:

Originally Posted by efranzen

With as many stories like mine as I'm coming across, I would say definately replace them if you're out of warranty - cheap insurance vs rebuilding a motor. The guy at LG said they have a pile of broken stock yellow valve springs. If you're even planning on doing a cam upgrade, that's the perfect time to do it.