1-S48
GL6000, GL7000, GL9000, GL11000, WSM
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 shaft and the gear.
4. If the oil clearance is not proper, replace the gear.
W11264830
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.
W11286770
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 font
and rear.
3. If the measurement exceeds the allowable limit, replace the
camshaft stopper.
W11299720
Backlash between idle
gear and crank gear
Factory spec.
0.043 to 0.124 mm
0.00169 to 0.00488 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and cam gear
Factory spec.
0.047 to 0.123 mm
0.00185 to 0.00484 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and injection pump
gear
Factory spec.
0.046 to 0.124 mm
0.00181 to 0.00488 in.
Allowable limit
0.15 mm
0.0059 in.
Backlash between oil
pump drive gear and
crank gear
Factory spec.
0.041 to 0.123 mm
0.00161 to 0.00484 in.
Allowable limit
0.15 mm
0.0059 in.
Idle gear side clearance
Factory spec.
0.20 to 0.46 mm
0.0079 to 0.0180 in.
Allowable limit
0.60 mm
0.0236 in.
Camshaft side
clearance
Factory spec.
0.15 to 0.31 mm
0.0059 to 0.0122 in.
Allowable limit
0.50 mm
0.0197 in.
KiSC issued 05, 2015 A