1-S61
MX5100, WSM
ENGINE
(2) Timing Gears
Timing 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 proper, replace the gear.
W1029564
Idle Gear Side Clearance
1. Set a dial indicator with its tip on the idle gear.
2. Measure the side clearance by moving the idle gear to the front
and rear.
3. If the measurement exceeds the allowable limit, replace the idle
gear collar.
W1029843
Backlash between idle
gear and crank gear
Factory spec.
0.04150 to 0.1122 mm
0.001634 to 0.004417 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and cam gear
Factory spec.
0.04150 to 0.1154 mm
0.001634 to 0.004543 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and injection pump
gear
Factory spec.
0.04150 to 0.1154 mm
0.001634 to 0.004543 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between crank
gear and oil pump gear
Factory spec.
0.04150 to 0.1090 mm
0.001634 to 0.004291 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and balancer gear
(Intake side)
Factory spec.
0.03500 to 0.1160 mm
0.001378 to 0.004566 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between cam
gear and balancer gear
(Exhaust side)
Factory spec.
0.03500 to 0.1160 mm
0.001378 to 0.004566 in.
Allowable limit
0.15 mm
0.0059 in.
(1) Injection Pump Gear
(2) Idle Gear
(3) Cam Gear
(4) Balancer Gear
(5) Oil Pump Drive Gear
(6) Crank Gear
(7) Balancer Gear
Idle gear side clearance
Factory spec.
0.12 to 0.48 mm
0.0048 to 0.018 in.
Allowable limit
0.9 mm
0.04 in.
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