Re: Torquing head bolts

[Duncan120@aol.com]

Martin:
It is to prevent the alloy head (or any other head for that matter) from
warping due to the uneven clamping force over one bolt/stud hole or another.
When a fastener is removed one fastener at a time, the head "lifts" due to the
clamping force being removed in that area by undoing in sequence, a little at
a time, you lessen the chance of warpage.

Ron