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Topic: Allison MTB 648 Drain Plug Torque (Read 305 times) previous topic - next topic

Allison MTB 648 Drain Plug Torque

My Allison MTB 648 transmission has a very slight drip from the area of the drain plug. I would like to check tightness of plug—would anyone have a torque value for the plug?
1989 Foretravel U300 Grand Villa
Build #3410

Re: Allison MTB 648 Drain Plug Torque

Reply #1
15-20 lb-ft. according to attached publication.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho