Timing Gears - wsm M108S Workshop Manual

M108S, WSM

(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.
Factory spec.
Backlash between crank
gear and idle gear 1
Allowable limit
Factory spec.
Backlash between idle
gear 1 and cam gear
Allowable limit
Factory spec.
Backlash between idle
gear 1 and idle gear 2
Allowable limit
Factory spec.
Backlash between idle
gear 2 and supply pump
gear
Allowable limit
Factory spec.
Backlash between cam
gear and balancer gear
1
Allowable limit
Factory spec.
Backlash between idle
gear 1 and balancer
gear 2
Allowable limit
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.
Factory spec.
Idle gear side clearance
Allowable limit
Camshaft Side Clearance
1. Set a dial indicator with its tip on the camshaft.
2. Measure the side clearance by moving the cam gear to the front
and rear.
3. If the measurement exceeds the allowable limit, replace the
camshaft stopper.
Factory spec.
Side clearance
Allowable limit
1-S56
ENGINE
0.0490 to 0.193 mm
0.00193 to 0.00759 in.
0.22 mm
0.0087 in.
0.0490 to 0.189 mm
0.00193 to 0.00744 in.
0.22 mm
0.0087 in.
0.0440 to 0.185 mm
0.00174 to 0.00728 in.
0.22 mm
0.0087 in.
0.0440 to 0.177 mm
0.00174 to 0.00696 in.
0.22 mm
0.0087 in.
0.0470 to 0.182 mm
0.00185 to 0.00716 in.
0.22 mm
0.0087 in.
0.0440 to 0.183 mm
0.00174 to 0.00720 in.
0.22 mm
0.0087 in.
W1064048
0.15 to 0.30 mm
0.0059 to 0.011 in.
0.9 mm
0.04 in.
W1064208
0.070 to 0.22 mm
0.0028 to 0.0086 in.
0.30 mm
0.012 in.
W1064307
KiSC issued 05, 2012 A