Warning; the engine pulled some of the head studs do to the factory head torque to much for the aluminum treads in the crankshaft bearing housing. I personally tightened the head bolts @ 8 mounts ago. To the below values.
1st step tighten to 23 ftlb
2dn step loosen all bolts
3rd step tighten to 15 ftlb
4th step add 60 degrees
5th step add 60 degrees.
lessen 5th step to 30/40 degrees? Any one with experance on this subject? Please advise.
The fix; Case savers.[M10x1.5x24mmTime-serts] same as used on the air cooled 2.7's cly.head studs.
Note pictures.
