Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

[Z06] Valve Spring Anyone?

Thread Tools
 
Search this Thread
 
Old Feb 16, 2017 | 05:59 PM
  #1  
WtrWkr's Avatar
WtrWkr
Thread Starter
Intermediate
 
Joined: Mar 2016
Posts: 27
Likes: 1
Default Valve Spring Anyone?

Hey Guys,
I'm the next valve spring failure to add to the list. 2002 Z06 with 361xx miles. Causing in 5th gear at 65MPH. Flashing check engine light and heard a ticking. I pushed in the clutch and coasted to an exit ramp. I knew it was bad so I didn't drive it, just tried to restart it hoping the issue cleared. Towed to my local shop I trust and it was on cylinder 6. Not sure which one. Anyhow, now I'm rocking some new "blue" springs. Engine is fine, so now

For the record, Build Date 5/02 and car number 31308

-John
Reply
Old Feb 16, 2017 | 06:41 PM
  #2  
Potent68's Avatar
Potent68
Instructor
15 Year Member
 
Joined: May 2006
Posts: 123
Likes: 15
Default

I have less than 10k on mine and every time I take it out I'm nervous due to all of these failures. I'll be doing the blues here very soon.
Reply
Old Feb 16, 2017 | 07:39 PM
  #3  
Josh67's Avatar
Josh67
Advanced
 
Joined: May 2016
Posts: 66
Likes: 4
From: Gig Harbor WA
Default

I replaced mine shortly after buying my 2002. A little over $200 for the springs and a compressor then a few hours in the garage. If you do it yourself order a few extra spring retainers in case you drop one.

Last edited by Josh67; Feb 20, 2017 at 04:22 PM.
Reply
Old Feb 16, 2017 | 08:28 PM
  #4  
MY03C5Z's Avatar
MY03C5Z
Race Director
 
Joined: May 2004
Posts: 15,866
Likes: 196
From: PA
Default

Sounds like you got very lucky, many times when one lets go the damage can be major. Replaced mine with new gm blue springs just after I got mine when it had 36k on it as well.
Reply
Old Feb 16, 2017 | 11:52 PM
  #5  
WtrWkr's Avatar
WtrWkr
Thread Starter
Intermediate
 
Joined: Mar 2016
Posts: 27
Likes: 1
Default

Originally Posted by Potent68
I have less than 10k on mine and every time I take it out I'm nervous due to all of these failures. I'll be doing the blues here very soon.
I wrestled with should I do this or not. After this scare I'm in the just do it camp. I paid to have it done but it was worth if to me. Lots of other guys can do it themselves and save tons of money. I will say this, new engine, 10K plus, replace valves, much less.
Reply
Old Feb 17, 2017 | 01:44 AM
  #6  
laurent_zo6's Avatar
laurent_zo6
Melting Slicks
10 Year Member
 
Joined: Aug 2013
Posts: 2,491
Likes: 315
St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22
Default

Originally Posted by WtrWkr
I wrestled with should I do this or not. After this scare I'm in the just do it camp. I paid to have it done but it was worth if to me. Lots of other guys can do it themselves and save tons of money. I will say this, new engine, 10K plus, replace valves, much less.
Same here. In addition replaced valve seals, gaskets, spark plugs and wires. Why take a risk when the solution is so simple and not that expensive.
Reply
Old Feb 17, 2017 | 01:38 PM
  #7  
WannaC5Z's Avatar
WannaC5Z
Drifting
 
Joined: Nov 2011
Posts: 1,279
Likes: 18
From: Oklahoma
Default

When I buy another C5Z if I see yellow springs in there I am forking over the cash to get the blues in immediately! What is the avg cost you guys are paying a Chevy dealership to do this?

Last edited by WannaC5Z; Feb 17, 2017 at 01:38 PM.
Reply
Old Feb 17, 2017 | 05:20 PM
  #8  
Paul 75 L82's Avatar
Paul 75 L82
Le Mans Master
20 Year Member
 
Joined: Dec 2000
Posts: 5,245
Likes: 25
From: Blue Ridge Georgia
Default

Do It yourselve.



Last edited by Paul 75 L82; Feb 17, 2017 at 05:21 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Feb 20, 2017 | 11:37 AM
  #9  
Potent68's Avatar
Potent68
Instructor
15 Year Member
 
Joined: May 2006
Posts: 123
Likes: 15
Default

Originally Posted by WtrWkr
I wrestled with should I do this or not. After this scare I'm in the just do it camp. I paid to have it done but it was worth if to me. Lots of other guys can do it themselves and save tons of money. I will say this, new engine, 10K plus, replace valves, much less.
I went ahead and ordered my blue springs and valve guide seals. Everything will be here this week. Now I have to find time to do the install.
Reply
Old Feb 20, 2017 | 02:11 PM
  #10  
WtrWkr's Avatar
WtrWkr
Thread Starter
Intermediate
 
Joined: Mar 2016
Posts: 27
Likes: 1
Default

Originally Posted by Potent68
I went ahead and ordered my blue springs and valve guide seals. Everything will be here this week. Now I have to find time to do the install.
Reply
Old Feb 20, 2017 | 03:59 PM
  #11  
racebum's Avatar
racebum
Race Director
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2008
Posts: 16,028
Likes: 170
From: oregon
Default

thankfully you were not at high rpm under high acceleration. from what i have seen that tends to be a killer

idle or above idle driving at light to no load rarely does damage as the remaining spring is able to keep the valve out of the piston

may consider replacing the valve seals while you are in there. $40 from gm and they take about 5 seconds each to change with the spring off
Reply
Old Mar 1, 2017 | 10:06 PM
  #12  
Bobtam's Avatar
Bobtam
Racer
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2007
Posts: 341
Likes: 39
From: Connecticut
Default May not be blue

Originally Posted by WannaC5Z
When I buy another C5Z if I see yellow springs in there I am forking over the cash to get the blues in immediately! What is the avg cost you guys are paying a Chevy dealership to do this?
The replacement 04 springs may not be blue. They can be yellow just make sure they are the newer part number. 12499224.
Reply
Old Mar 1, 2017 | 11:11 PM
  #13  
WannaC5Z's Avatar
WannaC5Z
Drifting
 
Joined: Nov 2011
Posts: 1,279
Likes: 18
From: Oklahoma
Default

What are you guys paying a shop to replace these? Parts $? Labor $? The car I just bought yesterday is a 2003 late year build so hoping it has the blues. How can I look in there and see them w/o taking the valve cover off? Does that oil filler neck twist ok safely?
Reply
Old Mar 1, 2017 | 11:40 PM
  #14  
laurent_zo6's Avatar
laurent_zo6
Melting Slicks
10 Year Member
 
Joined: Aug 2013
Posts: 2,491
Likes: 315
St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22
Default

If you remove the oil filler cap you should be able to see the color of one of the valve.
Reply
Old Mar 2, 2017 | 08:03 AM
  #15  
HONK 3X's Avatar
HONK 3X
Advanced
 
Joined: Nov 2016
Posts: 70
Likes: 3
Default

I just did the updated springs in my car. It is easy if you have some mechanical skill. I just did it for peace of mind in my 2003 Z06.
Reply
Old Mar 2, 2017 | 11:24 AM
  #16  
WannaC5Z's Avatar
WannaC5Z
Drifting
 
Joined: Nov 2011
Posts: 1,279
Likes: 18
From: Oklahoma
Default

Originally Posted by laurent_zo6
If you remove the oil filler cap you should be able to see the color of one of the valve.
Mine has some kind of filler neck that goes into there. It is different from my 2001 for some reason.
Reply
Old Mar 3, 2017 | 01:48 AM
  #17  
laurent_zo6's Avatar
laurent_zo6
Melting Slicks
10 Year Member
 
Joined: Aug 2013
Posts: 2,491
Likes: 315
St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22
Default

Originally Posted by WannaC5Z
Mine has some kind of filler neck that goes into there. It is different from my 2001 for some reason.
Perhaps you can get your hands on a digital inspection camera.
Reply

Get notified of new replies

To Valve Spring Anyone?

Old Mar 3, 2017 | 11:05 AM
  #18  
WtrWkr's Avatar
WtrWkr
Thread Starter
Intermediate
 
Joined: Mar 2016
Posts: 27
Likes: 1
Default

Originally Posted by WannaC5Z
Mine has some kind of filler neck that goes into there. It is different from my 2001 for some reason.
The filler neck comes off if I remember correctly.
Reply
Old Mar 4, 2017 | 10:27 PM
  #19  
Trash's Avatar
Trash
Racer
15 Year Member
All Eyes On Me
 
Joined: Apr 2010
Posts: 389
Likes: 25
Default

Originally Posted by Bobtam
The replacement 04 springs may not be blue. They can be yellow just make sure they are the newer part number. 12499224.
Concur
Reply
Old Mar 5, 2017 | 04:20 PM
  #20  
racebum's Avatar
racebum
Race Director
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2008
Posts: 16,028
Likes: 170
From: oregon
Default

Originally Posted by Bobtam
The replacement 04 springs may not be blue. They can be yellow just make sure they are the newer part number. 12499224.
thing you have to ask yourself is this. with the blue 16 spring kit available from gm perf parts for 65..

why would you ever buy singles and chance it?

Last edited by racebum; Mar 5, 2017 at 04:22 PM.
Reply



All times are GMT -4. The time now is 01:47 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE