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Torque specs on exhaust manifold nuts????

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Old May 30, 2014 | 09:33 AM
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mikeo33y's Avatar
mikeo33y
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Default Torque specs on exhaust manifold nuts????

100 to 120 ich lbs is only about 10 ft lbs i believe. This seems like not alot of torque to hold these nuts on securely. Checking all my nuts and bolts today and came across this. any feed back appreciated
 
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Old May 30, 2014 | 09:42 AM
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gnewman
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I just put cobra power ports on my ultra classic. 100-120 inch pounds is correct, and I have no leaks.
 
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Old May 30, 2014 | 10:49 AM
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mkguitar
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From: Phoenix '53, '88, '09 Big Twins
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yup.

these studs get pretty brittle with heat and when broken require the head removed to fix.

antiseize paste on the threads is smart.

the evo and TC exhaust use a gasket and ring/collar that help make a seal with lesser clamping force

mike
 
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