Bruce
I am assuming the sequence is the same as a Stag cylinder head
You tighten the top row first from the middle out and then the botton row,
also from the middle out. In diagrammatic form the sequence from A to J is
as follows
D B A C E
I G F H J
Only loosen one nut (top row) or bolt (bottom row) at a time and then
immediately tighten.
David Greed
1974 Stag Man O/D
1979 2500S Man O/D
Email: Home: greed@wave.co.nz
Work: david.greed@telecom.co.nz
Webpages: http://www.wave.co.nz/pages/greed
.
----- Original Message -----
From: <Eganb@aol.com>
To: <Triumphs@autox.team.net>; <british-cars@autox.team.net>;
<tr8@mercury.lcs.mit.edu>
Sent: Tuesday, 2 January 2001 5:36 PM
Subject: TR7 BFH#42 - head torquing sequence
>
> Maybe the following is a good puzzler for Car Talk on NPR...
>
> As you know, there is a sequence for tightening head bolts, and a reverse
> sequence for loosening them. so, the first one you loosen is the last one
> you tighten when removing/refitting the head -- when you are loosening all
> the bolts, and then tightening them all.
>
> i don't want to take the TR7 head off, i just want to retorque it now that
I
> have run it for a bit after the rebuild.
>
> and i assume i don't want to loosen all the bolts at once -- might raise
the
> head gasket?
>
> so, which sequence do i use to loosen and then tighten one bolt at a time,
> the tightening sequence or the loosening sequence?
>
> i used the tightening sequence last time -- that is, i loosened and
> re-tightened the first bolt in the tightening sequence, then the next in
the
> tightening sequence...
>
> does this question even make sense?.....
>
> a befuddled thanks for all replies.
>
> Bruce
> 1980 Inca Yellow TR7 5-speed convertible
> Chapel Hill, NC
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