Packard Forum Index » Pre-War (1899-1942)

I can't seem to find this info. Any idea what torque specs are on the bell hosing screws on a 37 Six? I have found oil pan to crank case listed in my Motor's Manual to be "9-11 pounds feet" but can't seem to locate those for the bell housing.

I believe torque specs were developed during World War II so they are not found in pre-war shop manuals. Specs for pre-war vehicles can be approximated by looking in post-war manuals. The 1951-54 shop manual shows the bell housing assembly screw to be 7/16-14 size and lists a torque spec of 55-60 ft. lbs. This is for the Ultramatic transmission. Although there is no listing for such a screw in the Uni-mesh or manual transmission section, there is a listing of a transmission assembly to flywheel housing screw, 1/2-13 size at 65-75 ft. lbs. So use these specs as guidelines for your car. I hope this helps.