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Registered
Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
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Did they tell you why you should use the lower torque value? I'm curious. I conjecture the reason is the differential thermal expansion (between room temperature and operating temperature) between the aluminum in the barrels and heads and the steel in the studs adds tension to the studs. Aluminum expands at about twice the rate of steel. Cheers, Jim
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