Mark Jurras wrote:
>I had the pleasure of a broken head bolt on my 1980 Olds Cutlass 5.7L
>diesel engine. It was grade 9 (as hard as the drill bit for the easy
>out).
Are most head bolts that hard (grade 9, that is), or are they peculiar to
the diesel--necessary to keep the heads from flying off? If the head bolts
in our MG's are that hard, the brittleness alone would be reason enough for
me to think twice about reusing them.
--
Jay Tilton | jtilton@vt.edu | Virginia Tech
http://fbox.vt.edu:10021/J/jtilton/index.html
|