Valve Spring Specs? Anyone?
My brother is rebuilding the head on my '84 Euro 635, M30-B34 and wants to know the spec requirements for the valve springs AFTER installation so he can shim if necessary.
Oddly the info is not in my Bentley manual, everything about the head but spring info.
Part number for the spring is 11-34-1-276-504
He is mainly interested in the following:
- Installed height
- Spring pressure with valve closed
- Spring pressure with valve open
- Coil bind dimension
He is interested in hard numbers which I suspect are probably only found in a BMW shop manual/data base.
Thanks for any info
Last edited by Spasso; 06-20-2016 at 01:02 AM.
Spasso
530iT, 525 5-speed , 328is.