Kubota G21LD / G21HD Workshop Manual page 110

G21LD · G21HD, WSM
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 font
and rear.
3. If the measurement exceeds the allowable limit, replace the
camshaft stopper.
Factory spec.
Camshaft side
clearance
Allowable limit
Camshaft Alignment
1. Support the camshaft with V blocks on the surface plate at both
end journals.
2. Set a dial indicator with its tip on the intermediate journal.
3. Measure the camshaft alignment.
4. If the measurement exceeds the allowable limit, replace the
camshaft.
Camshaft runout Allowable limit
Cam Height
1. Measure the height of the cam at its highest point with an outside
micrometer.
2. If the measurement is less than the allowable limit, replace the
camshaft.
Factory spec.
Cam height of intake
and exhaust
Allowable limit
1-S38
ENGINE
0.20 to 0.51 mm
0.0079 to 0.0201 in.
0.80 mm
0.0315 in.
W11286770
0.15 to 0.31 mm
0.0059 to 0.0122 in.
0.50 mm
0.0197 in.
W11299720
0.01 mm
0.0004 in.
W11312720
26.88 mm
1.0583 in.
26.83 mm
1.0563 in.
W11324040
KiSC issued 08, 2007 A