Torque Specs, Engine, 1948 J.D. Model M

dave keyes · Oct 7, 2014

Does anyone know the torque specs. for cylinder head, intake manifold, and exhaust manifold for 1948 J.D. Model M ? Or know where I find them ? Thank you

old popper · Oct 8, 2014

The torque for the head bolts is 105 ft lbs. That came from "Mr Thinkers Almanac". They don't list any torque value for the manifold.

Mark-Ia · Oct 8, 2014

My original service manual lists head torque at 100-110 ft.lbs, connecting rods-70-80-ft lbs, main bearings-140 ft. lbs, rocker arm nuts-25-30 ft lbs, flywheel attaching bolts at 75=80 ft.lbs. The book just says to install and tighten the manifold nuts.

Torque Specs, Engine, 1948 J.D. Model M

dave keyes

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old popper

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Mark-Ia

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