Heat Exchanger to head nut torque |
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Heat Exchanger to head nut torque |
jmalone |
May 22 2013, 09:53 PM
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#1
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Member Group: Members Posts: 119 Joined: 3-July 09 From: reno,NV Member No.: 10,529 Region Association: Northern California |
Can anyone confirm the torque figures for the heat exchanger to head nuts? I have initial torque at 7.3 ft/lb and final torque at 24.5 ft/lb.
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Tom |
May 23 2013, 12:12 PM
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#2
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Advanced Member Group: Members Posts: 2,139 Joined: 21-August 05 From: Port Orchard, WA 98367 Member No.: 4,626 Region Association: None |
By using anti-seize on the threads, you have now made the dry torque figures no longer applicable. Google wet versus dry torque numbers to understand. Example, a dry torque required of 20 ftlbs being applied to a wet thread will yield about 25-28 ftlbs of actual torque, resulting in an over-torqued fastener.
Better yet, just do as Jeff said and torque only until the HE's seal. Tom |
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