[AMC-list] 195.6 ohv head torquing results, with ARP studs

[tom jennings <tomj@xxxxxxx>]

I did my "final" torque-check today, at 1000 miles, and so far so good.

I torqued the head three times: at assembly, cold, 75 ft/lbs. (This is with
the ARP head studs and ARP lube.) The "next day" after I was able to run it
up to operating temperature while I adjusted valves and all that, then let
it cool over night. Then at 500 miles (I think it was) after of course full
cooldown.

Both re-torques were done without the usual "cracking loose". With all this
good stuff in there they didn't need it -- torque was applied and the nuts
turned. I didn't write it down at the time (unless I posted it to the list)
but I think the first time each nut turned 1/3 turn. All were the same. On
the 500 mile retorque, all turned about 45 degrees.

This morning, cold overnight, I checked four bolts. Nuts turned not even 5
degrees, two not at all (there is some stiction). So whatever was growing
(stud stretch?) and whatever was shrinking (gasket squish) stabilized.

I will continue to check it, another 1000 miles, then probably 5000, then
annually or whatever. Ideally it will NOT NEED RETORQUING.


I'm thinking of driving up to Sacramento for the AMCRC national meet, it's
only 400 miles. Anyone else here going?
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