TM 5-3805-280-24-2
Crankshaft, Main Bearings and Flywheel
15
IMPORTANT: Do not use pneumatic wrench to install
51
main bearing cap screws, as damage
may occur to threads.
4. Tighten all main bearing cap screws to specifications
except rear main (thrust) bearing cap screws. Tighten
rear main (thrust) bearing cap screw fingertight.
Crankshaft Main Bearing Cap Screws--Specification
Torque ......................................................................... 135 Nm (100 lb-ft)
IMPORTANT: DO NOT pry on thrust washer when
forcing crankshaft back and forth to
align thrust bearings.
5. Before tightening rear main (thrust) bearing cap
screws, align upper and lower thrust bearings.
Carefully force crankshaft and main thrust bearing cap
to rear using a prybar between crank throw and block
web. Then, force crankshaft to front to line up thrust
bearing surfaces.
6. Tighten rear main (thrust) bearing cap screws to
specified torque.
Crankshaft Rear Main (Thrust) Bearing Cap Screws--Specification
Torque ......................................................................... 135 Nm (100 lb-ft)
7. Turn crankshaft by hand. If crankshaft does not turn
easily, disassemble parts and determine the cause.
Continued on next page
RG,15,DT7432 1914NOV972/3
13-229
