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-   -   Valve spring specs needed (http://forums.pelicanparts.com/911-engine-rebuilding-forum/383381-valve-spring-specs-needed.html)

84toy 12-20-2007 10:28 AM
Valve spring specs needed
 
I'm working on a 95 3.6. Does anyone have the valve spring specs so that I can check them?

I have a valve spring measuring scale but I could not find any specs in the service manual. Any help appreciated....

cgarr 12-20-2007 10:34 AM
I would be very interested too, I installed the http://www.drcamshafts.com/ springs and he lists a nice table for his spring rates per inch. But that does not help you..

84toy 12-20-2007 10:59 AM
Perhaps if someone has a new spring that they can check and post the results....

BURN-BROS 12-23-2007 06:28 AM
They should be around 55 to 65 at the installed height depending on application. Measure them all, they should be within 5% or so from one another.

84toy 12-23-2007 05:57 PM
Thanks, they are all within 2 pounds of each other. I have 70 lbs on the exhaust and 63 on the intake. (intake and exhaust have different assembled height specs)

BURN-BROS 12-23-2007 06:39 PM
That looks good. Judging by the spring rates, I am assuming thats due to the hydraulic rockers?


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