Kubota WG972-E2 Workshop Manual page 127

WG972-E2, DF972-E2, WSM
Oil Clearance of Camshaft Journal
1. Measure the camshaft journal O.D. with an outside micrometer.
2. Measure the cylinder block bore I.D. for camshaft with a inside
micrometer, and calculate the oil clearance.
3. If the clearance exceeds the allowable limit, replace the
camshaft.
Factory spec.
Oil clearance of
camshaft journal
Allowable limit
Camshaft journal O.D. Factory spec.
Camshaft bearing I.D.
(Cylinder block bore Factory spec.
I.D.)
Oil Clearance between Idle Gear Shaft and Idle Gear Bushing
1. Measure the idle gear shaft O.D. with an outside micrometer.
2. Measure the idle gear bushings I.D. with an inside micrometer,
and calculate the oil clearance.
3. If the oil clearance exceeds the allowable limit, replace the
bushing.
4. If it still exceeds the allowable limit, replace the idle gear shaft.
Factory spec.
Oil clearance between
idle gear shaft and idle
gear bushing
Allowable limit
Idle gear shaft O.D. Factory spec.
Idle gear bushing I.D. Factory spec.
Replacing Idle Gear Bushing
(When removing)
1. Press out the used idle gear bushing using an idle gear bushing
replacing tool.
(When installing)
1. Clean a new idle gear bushing and idle gear bore, and apply
engine oil to them.
2. Press in a new bushing using an idle gear bushing replacing tool,
until it is flush with the end of the idle gear.
(A) When Removing
S-57
GASOLINE / LPG ENGINE
0.050 to 0.091 mm
0.00197 to 0.00358 in.
0.15 mm
0.0059 in.
32.934 to 32.950 mm
1.29661 to 1.29724 in.
33.000 to 33.025 mm
1.29921 to 1.30020 in.
W1064798
0.020 to 0.084 mm
0.00079 to 0.00331 in.
0.10 mm
0.0039 in.
19.967 to 19.980 mm
0.78610 to 0.78661 in.
20.000 to 20.051 mm
0.78740 to 0.78941 in.
W1064968
(B) When Installing
W10302410
KiSC issued 01, 2006 A