Replacing Idle Gear Bushing; Piston Pin Bore 1.0.; Oil Clearance Between Piston Pin And Small End Bushing - Kubota B2410 Workshop Manual

1 ENGINE
82410· 82710· 82910 WSM, 12271
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)
00000F10200
(B)
(A) When Removing (B) When Installing
00000810160
(3) Piston and Connecting Rod
00000F10260
Piston Pin Bore 1.0.
1. Measure the piston pin bore 1.0. in both the horizontal and
vertical directions with a cylinder gauge.
2. If the measurement exceeds the allowable limit, replace the
piston.
Factory spec.
22.000 to 22.013 mm
0.86614 to 0.86665 in.
Piston pin bore 1.0.
22.05 mm
Allowable limit
0.8681 in.
00000810211
Oil Clearance between Piston Pin and Small End Bushing
1. Measure the piston pin 0.0. where it contacts the bushing with
an outside micrometer.
2. Measure the small end bushing 1.0. with an inside micrometer,
and calculate the oil clearance.
3. If the oil clearance exceeds the allowable limit, replace the
bushing. If it still exceeds the allowable limit, replace the piston
pin.
Factory spec.
0.014 to 0.038 mm
Oil clearance between
0.00055 to 0.00150 in.
piston pin and small end
0.15 mm
bushing
Allowable limit
0.0059 in.
Piston pin 0.0. Factory spec.
22.002 to 22.011 mm
0.86622 to 0.86657 in.
Small end bushing
1.0.
Factory spec.
22.025 to 22.040 mm
0.86713 to 0.86771 in.
00000810221
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