1-S43
F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
ENGINE
(2) Timing Gears, Camshaft and Governor Gear
Timing Gear Backlash and Governor Gear Backlash
1. Set a dial indicator (lever type) with its tip on the gear tooth.
2. Move the gear to measure the backlash, holding its mating gear.
3. If the backlash exceeds the allowable limit, check the oil
clearance of the shafts and the gear.
4. If the oil clearance is not correct, replace the gear.
W10280630
Idle Gear 1 Side Clearance
1. Set a dial indicator with its tip on the idle gear.
2. Measure the side clearance by moving the idle gear from the
front and rear.
3. If the measurement exceeds the allowable limit, replace the idle
gear collar.
W10285590
Camshaft Side Clearance
1. Set a dial indicator with its tip on the camshaft.
2. measure the side clearance by moving the cam gear from the
front to rear.
3. If the measurement exceeds the allowable limit, replace the
camshaft stopper.
W10295630
Backlash between idle
gear 1 and crank gear
Factory spec.
0.032 to 0.115 mm
0.0013 to 0.0045 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear 1 and cam gear
Factory spec.
0.036 to 0.114 mm
0.0014 to 0.0045 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear 1 and injection
pump gear
Factory spec.
0.034 to 0.116 mm
0.0013 to 0.0046 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between
injection pump gear and
governor gear
Factory spec.
0.030 to 0.117 mm
0.0012 to 0.0046 in.
Allowable limit
0.15 mm
0.0059 in.
Idle gear 1 side
clearance
Factory spec.
0.20 to 0.51 mm
0.0079 to 0.0201 in.
Allowable limit
0.8 mm
0.0315 in.
Camshaft side
clearance
Factory spec.
0.07 to 0.22 mm
0.0028 to 0.0087 in.
Allowable limit
0.30 mm
0.0118 in.