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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stugray |
May 23 2013, 09:40 AM
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#2
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
I just went through this entire process:
1 - replaced all exhaust studs (Manufactured my own 8mm studs before removing the old and found out that all of my stud holes had been tapped out to 9mm). 2 - ordered new 9X8mm step studs from www.belmetric.com 3 - extracted all old studs with stud extractor tool from Sears ( the kind that pound on over the studs and acts like a bolt head) 4 - Installed all new studs to find that they all have a slight bend to them, so they need to be clocked right or the HE dont fit over them 5 - threw aside the stupid copper plated exhaust nuts from pelican parts because the flange on the bottom of the nut would not clear the side of the HE stubs. (actually accidentally bought TWO whole bags of them - anybody want some?) 6 - Bought 8mm "JIS Nuts" from Ace. They are smaller barrels so a 12mm socket will fit. 7 - Used SS washers under nuts (some had to be ground to fit in the small space) 8 - STILL had to grind off the side of a 12mm 6 point socket to have enough clearance from the side of the HE for the socket to fit down. 9- torqued all nuts to 14 ft-lbs 10- installed second set of nuts to lock the first set in place. If I could have found SS JIS nuts, I would have used those. HTH - Stu |
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