S-75
03-M Series, WSM
DIESEL ENGINE
(2) Timing Gears, Camshaft and Fuel Camshaft
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 not proper, replace the gear.
For Balancer Model Only
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.
0.0415 to 0.1122 mm
0.00163 to 0.00442 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and cam gear
Factory spec.
0.0415 to 0.1154 mm
0.00163 to 0.00454 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and injection pump
gear
Factory spec.
0.0415 to 0.1154 mm
0.00163 to 0.00454 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between crank
gear and oil pump gear
Factory spec.
0.0415 to 0.1090 mm
0.00163 to 0.00429 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and balancer gear
(Intake side)
Factory spec.
0.0350 to 0.1160 mm
0.00138 to 0.00457 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between cam
gear and balancer gear
(Exhaust side)
Factory spec.
0.0350 to 0.1160 mm
0.00138 to 0.00457 in.
Allowable limit
0.15 mm
0.0059 in.
Idle gear side clearance
Factory spec.
0.12 to 0.48 mm
0.0047 to 0.0189 in.
Allowable limit
0.9 mm
0.0354 in.
KiSC issued 08, 2012 A
