Torquing Hot?

From: Jay Laifman (Jay_Laifman(at)countrywide.com)
Date: Thu May 27 1999 - 15:28:56 CDT


Rob wrote:

>Tonight we will restart it, bring it up to temp and retorque the head then
>adjust and tune.

I don't know if he is suggesting torquing the head hot. But, he seems to
be. I thought that torquing aluminum heads should be done when the head is
COLD (and adjusting the valves when they are hot). I heard once that
torquing a hot head could cause over torquing and upon cooling cause the
head to crack.

But, now that I think about it, if the head is hot, it is larger than it
will be than when it is cold. So, maybe that is not the reason. But, I
still seem to recall that Alpine heads are supposed to be torqued cold. I
don't have my books. Anyone else know?

Jay



This archive was generated by hypermail 2b30 : Tue Sep 05 2000 - 10:49:06 CDT