I'd opt for the retorquing without back-off. This so logical.
Do this from the middle of the head crosswise.
Cheers,
Hans
'71 BGT with '90 retorqued head
----- Original Message -----
From: "DON SCOTT" <rowdon@sonoma-county.org>
To: <mgs@autox.team.net>
Sent: Tuesday, September 02, 2003 7:45 PM
Subject: head retorquing question
> Can anyone offer some tips on this? When retorquing a head, is the proper
> procedure to back off each nut/bolt then retighten, doing them all in
> recommended sequence? And when backing off, how much? A friend was told
not
> to back off the nuts/bolts first, just to retorque.
>
> Years ago, I had a Toyota Celica that was weeping coolant from between
head
> and block. I retorqued the head and it solved the problem. I used the
> "back-off first" method at that time. It had an aluminum head on a cast
iron
> block rather than cast iron for both- I don't know if the procedure varies
by
> application.
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