TM 5-3805-290-23-2
TIMING AND IDLER GEARS REPLACEMENT - CONTINUED
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CLEANING AND INSPECTION - CONTINUED
Specifications - Continued
D. Idler gear and hub:
Bore diameter of idler gear: 2.250 to 2.251 in. (57.14 to 57.18 mm).
Width of idler gear and split bearing assembly: 1.186 to 1.187 in. (30.14 to 30.16 mm).
Inside diameter of idler gear bearing: 1.999 to 2.000 in. (50.78 to 50.80 mm).
Outside diameter of idler gear hub: 1.996 to 1.998 in. (50.70 to 50.74 mm).
Clearance of bearing on the idler gear hub: 0.002 to 0.004 in. (0.04 to 0.10 mm).
Idler gear end play: 0.004 to 0.008 in. (0.10 to 0.20 mm).
Maximum permissible end play: 0.015 in. (0.38 mm).
Blacklash (minimum): 0.003 in. (0.08 mm).
E. Tighten bolts for idler gear to 33 lb ft (44 Nm).
F. Crankshaft gear:
Bore diameter of crankshaft gear: 1.8750 to 1.8760 in. (47.625 to 47.650 mm).
Outside diameter of crankshaft for crankshaft gear: 1.8750 to 1.8758 in. (47.625 to 47.645 mm).
Clearance of crankshaft gear on crankshaft for a press fit: 0.0006 to 0.0014 in. (0.015 to 0.035 mm).
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