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M38a1/m170 rear pinion nut torque after changing seal
Posted: Wed May 09, 2012 7:49 pm
by bl5211a
Hello: Any recommendations on rear pinion nut torque? I did punch mark the nut & pinion before disassembly. I have placed a new pinion seal and was wondering if I should tighten to punch marks or to a specific torque?
Brian
Posted: Wed May 09, 2012 9:14 pm
by OKCM38CDN
If I remember correctly the torgue should be 200-220 ft lbs...
Check the manual... it is in the downloads section.
Posted: Wed May 09, 2012 10:35 pm
by wesk
The manuals give a spec of 200 to 220 Ft Lbs when setting the pinion but the manual does not give any specific torque figure when re-installing the nut after installing the seal.
The standard torque for a 3/4 x 16 threaded nut is 150-184 Ft Lbs.
Posted: Thu May 10, 2012 5:25 am
by Bretto
It's recommended to always use a new nut.
Posted: Fri May 11, 2012 12:13 am
by wesk
By whom?
I have reused the original nuts for over 45 years without a single failure.