Myself, I would simply retorque to your value. Gaskets will compress over time
and a retorque is appropriate after a few heat cycles. IMHO
-----Original Message-----
From: Scott Janzen via Fot <fot at autox.team.net>
To: 'Friends of Triumph' Triumph <fot at autox.team.net>
Sent: Tue, Sep 19, 2017 5:18 pm
Subject: [Fot] Re-torquing a cylinder head - GT6
I?m adjusting valves after the last race weekend. For whatever reason, I put
the torque wrench on a couple of the head bolts - and found maybe 90 degrees of
movement on the few nuts I checked.
I run a Payen head gasket - composite with a metal ring at the combustion
chamber.
Should I:
loosen one nut at a time, lube with moly as provided by ARP, and retorque to
ARP spec;
tighten from the current position to ARP spec (75 ft-lb)
do nothing
The engine has probably four race weekends on it. I can honestly say I have
never re-torqued Payen gaskets before, but I have also re-checked the torque on
other gaskets and not found any movement.
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