TM 5-3820-233-35/1
STEP 1. REMOVE CRANK SHAFT PULLEY.
Figure 25-1 (1). Crankshaft pulley and front cover, removal and installation.
(2) Perform a magnetic inspection on the
(5) Inspect main bearings for wear,
crankshaft for cracks, breaks, or indications of
roughness, and overheating. Replace defective
fatigue. Replace the crankshaft if any of the
above mentioned conditions exist.
(6) Check runout of crankshaft journals.
Refer to table 1 for correct tolerance and
(3) Measure the main bearing and con-
clearance data. If the runout limit is greater
necting rod journals for wear and out-of-
than the data given in table 1, replace the
roundness. Refer to table 1 for tolerance and
crankshaft.
clearance data.
(7) Inspect oil pump drive gear and
(4) Inspect the thrust washers for wear
crankshaft timing gear for chipped or cracked
or roughness. Measure washer thickness. Re-
teeth. Replace a defective gear.
fer to table 1 for correct dimensions and tol-
(8) Measure journal-to-bearing shell
erance data. Replace defective washers.
clearence. Refer to table 1 for allowable tol-
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