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Dual springs Killing valve seals?

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Old 10-10-2008, 01:08 PM
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Default Dual springs Killing valve seals?

Im having a problem with the prc dual springs knocking the seals off the guides, trashing them.

The last time I installed them I made sure to hammer them untill they bottomed out.

What is a way to remedy this issue?


Im curious to see, Can I run the 02+ stock valve seals with the seat built in? In theory this would make good sense as the seal would not be allowed to come off the guide.
Old 10-10-2008, 03:51 PM
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What seats are you currently running?
Old 10-10-2008, 07:43 PM
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Originally Posted by vetteboyc5
Im having a problem with the prc dual springs knocking the seals off the guides, trashing them.

The last time I installed them I made sure to hammer them untill they bottomed out.

What is a way to remedy this issue?


Im curious to see, Can I run the 02+ stock valve seals with the seat built in? In theory this would make good sense as the seal would not be allowed to come off the guide.
You should have a seperate seat and seperate seal combo. Whats your cam lift? And the answer to your last question is NO!
Old 10-11-2008, 12:57 PM
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Im running the MS4 cam. I believe lift is .649 .609 I have the seperate seal setup and i keep loosing them they pop off.

Any way to keep them seated down?
Old 10-18-2008, 09:13 PM
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Originally Posted by vetteboyc5
Im running the MS4 cam. I believe lift is .649 .609 I have the seperate seal setup and i keep loosing them they pop off.

Any way to keep them seated down?
What is your RETAINER to SEAL clearance?
Old 10-19-2008, 07:59 AM
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I have no idea, to be honest LOL. Is there a certain way to put the springs on? Am I installing them too close to the valve seal?
Old 10-19-2008, 08:56 AM
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yeah sounds like your retainer may be tapping on the tops of the seals...
Old 10-19-2008, 10:03 PM
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Originally Posted by vetteboyc5
I have no idea, to be honest LOL. Is there a certain way to put the springs on? Am I installing them too close to the valve seal?
I think your installed height is a little on the tight side I bet, and at max lift you retainers are touching the seals? (intake side only)
Old 10-20-2008, 08:50 AM
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Originally Posted by JPH
I think your installed height is a little on the tight side I bet, and at max lift you retainers are touching the seals? (intake side only)
Well said my thoughts too...
Old 10-20-2008, 11:03 AM
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Are you using the smaller diameter blue viton seals and spring locaters that come with the PRC kit? If you are using the stock type seals they will not clear the ID of the inner spring. This is the same reason you cannot run the seat/seal combo, it will break the inner spring.
Old 10-20-2008, 12:15 PM
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2 things I notice:

1- as mentionned above you need to run the Vitons
2- You do not "Hammer" the seals on, you should just lightly tap them on and use a feeler guage to monitor retainer to seal distance.




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