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Spring insatlled height?
Posted: Sat Dec 08, 2007 5:53 pm
by winkle
When measuring valve spring installed height, is it measured from the platform to the underside, or top of the retainer?
I was sure it was underside but then I got told by a mate it was to the top of the retainer
Just want to double check cos I need to do this tommorow!!
Posted: Sat Dec 08, 2007 6:18 pm
by stevieturbo
Installed height, is the actual installed height of the spring itself.
Posted: Sat Dec 08, 2007 7:45 pm
by mgbv8
As Stevie say Winkle. Its the height of the spring itself. So to the underside of the spring cap.
I've had my heads machined deeper around the valve guides to take the heavy double valve springs. I use check springs to get the measurements, then use shims to bring the fitted height up to what it should be. Give or take a thou or two.
You can get the check springs and shims from Real Steel.
spring installed height
Posted: Sun Dec 09, 2007 10:23 am
by winkle
Cheers for the advice, will get on with it then.