Kubota M105S, Workshop Manual

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1-S61
M105S, WSM ENGINE
(2) Idle Gear and 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 isn't proper, replace the gear.
W1063044
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.
W1063644
Backlash between crank
gear and idle gear 1
Factory spec.
0.049 to 0.193 mm
0.0019 to 0.0076 in.
Allowable limit
0.22 mm
0.0087 in.
Backlash between idle
gear 1 and cam gear
Factory spec.
0.049 to 0.189 mm
0.0019 to 0.0074 in.
Allowable limit
0.22 mm
0.0087 in.
Backlash between idle
gear 1and idle gear 2
Factory spec.
0.044 to 0.185 mm
0.0017 to 0.0073 in.
Allowable limit
0.22 mm
0.0087 in.
Backlash between idle
gear 2 and injection
pump gear
Factory spec.
0.044 to 0.177 mm
0.0017 to 0.0070 in.
Allowable limit
0.22 mm
0.0087 in.
Backlash between cam
gear and balancer gear
1
Factory spec.
0.047 to 0.182 mm
0.0018 to 0.0072 in.
Allowable limit
0.22 mm
0.0087 in.
Backlash between idle
gear 1 and balancer
gear 2
Factory spec.
0.044 to 0.183 mm
0.0017 to 0.0072 in.
Allowable limit
0.22 mm
0.0087 in.
Idle gear side clearance
Factory spec.
0.15 to 0.30 mm
0.0059 to 0.0118 in.
Allowable limit
0.9 mm
0.0354 in.
KiSC issued 03, 2007 A