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Question on broken valvespring

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Old Aug 25, 2004 | 10:14 PM
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Default Question on broken valvespring

The dealer informed me today my Z has 3 broken valvesprings. Do they have an inner and outer spring? What holds the valve up after that to avoid piston contact? My warranty is about to expire so I want to be sure things are done right.
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Old Aug 25, 2004 | 10:30 PM
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Originally Posted by Diamond
The dealer informed me today my Z has 3 broken valvesprings. Do they have an inner and outer spring? What holds the valve up after that to avoid piston contact? My warranty is about to expire so I want to be sure things are done right.
If it is stock, the Z06 has a single spring. Green if it is a 2001 model and a yellow spring on 02+ LS6 models. If the spring breaks there is little significant force holding the keepers in place and at any given moment the keepers can slip out of the retainers and you can drop a valve. Which is quite ugly. Is you Z06 stock? Stock cam? And you broke a spring? WOW!
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Old Aug 25, 2004 | 10:56 PM
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Did you wind the heck out of this motor or miss a shift or ????? Tell us more. What spring are you replacing them with?
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Old Aug 25, 2004 | 10:58 PM
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Yes, its an 02. Stock everything minus a twin tube intake and power duct. It stopped running at an idle.
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Old Aug 26, 2004 | 08:30 AM
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dang doug, joe told me about this, insane how 3 stock springs broke just like that!
I can see maybe 1 failing at a time or something but 3 of them is insane!

keep me informed

seeya
Derek
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Old Aug 26, 2004 | 11:36 AM
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Hard for me to believe that 3 springs failed all at once without some thing else going on!
May have been a "forced" over rev, or going WOT stone cold, or ?
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Old Aug 26, 2004 | 12:37 PM
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Originally Posted by CJS
Hard for me to believe that 3 springs failed all at once without some thing else going on!
May have been a "forced" over rev, or going WOT stone cold, or ?
Maybe it was the 5-1 downshift
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Old Aug 26, 2004 | 02:58 PM
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Reving a motor when cold is the quickest way to break valve springs.
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