912ULS Headbolt replacement

8 Nm ( 70 in.lb )

Excerpt from the HMM Section 72-00-00, Chapter 3.16.4, Page 92.

"...Tighten to 10 Nm (90 in.lb) and then in addition tighten further by applying a 120° rotation ..."

You will need to loosen BOTH Heads and use the cylinder alignment tool and perform the 8-Bolt tightening sequence. 

This is Not a Plug and Play Procedure.

I thought it was for a stud........looking at the picture (headbolt)

Yep headbolt, there is white paste on the middle of the bolt which I guess is anti seize but there is no reference to that in the manual (that I could find), what is the process there? Only the head removed not the cylinder. I've read page 92 but my issue is putting the whole bolt back in, I haven't had a bolt come out like that before and this is the bit I can't find a reference for. Thanks

in fact,the part is called ' STUD ' in the Parts manual

an old Part manual that I have prescribe a torque of 3 Nm ( 26 in.lb )

see parts # 27 & 28 on attached drawing

although, the shorter stud [ part # 6 o   drawing ) is prescrib a torque of 8 Nm (70 in lb)

the actual IPC  (parts catalog ) doesn't show the torque.. I think it is in the Overhaul Manual

in fact, it is in my old one...