Piston And Connecting Rod - Kubota V3300-E2B Workshop Manual

V3300-E2B, V3300-T-E2B, WSM

(3) Piston and Connecting Rod

Oil Clearance of Balancer Shaft Journal
1. Measure the balancer shaft journal O.D. with an outside
micrometer.
2. Measure the cylinder block bore I.D. (A), (B) for balancer shaft
with an inside micrometer.
3. If the clearance exceeds the allowable limit, replace the balancer
shaft.
Factory spec.
Oil clearance of
balancer-shaft journal
Allowable limit
Balancer-shaft journal
Factory spec.
O.D.
Balancer-shaft bearing
Factory spec.
I.D. (A), (B)
(A) Balancer-shaft Bearing I.D.
Piston Pin Bore I.D.
1. Measure the piston pin bore I.D. in both the horizontal and
vertical directions with a cylinder gauge.
2. If the measurement exceeds the allowable limit, replace the
piston.
Factory spec.
Piston pin bore I.D.
Allowable limit
Oil Clearance between Piston Pin and Small End Bushing
1. Measure the O.D. of the piston pin where it contacts the bushing
with an outside micrometer.
2. Measure the I.D. of the piston pin bushing at the connecting rod
small end with a cylinder gauge.
Calculate the oil clearance.
3. If the clearance exceeds the allowable limit, replace the bushing.
If it still exceeds the allowable limit, replace the piston pin.
Factory spec.
Oil clearance between
piston pin and small end
bushing
Allowable limit
Piston pin O.D. Factory spec.
Small end bushing I.D. Factory spec.
S-66
DIESEL ENGINE
0.070 to 0.159 mm
0.0028 to 0.0063 in.
0.2 mm
0.0079 in.
50.92 to 50.94 mm
2.0047 to 2.0055 in.
51.01 to 51.08 mm
2.0083 to 2.0110 in.
(B) Balancer-shaft Bearing I.D.
W1065581
30.000 to 30.013 mm
1.1811 to 1.1816 in.
30.05 mm
1.1831 in.
W1065759
0.020 to 0.040 mm
0.0008 to 0.0016 in.
0.15 mm
0.0059 in.
30.006 to 30.011 mm
1.1813 to 1.1815 in.
30.031 to 30.046 mm
1.1823 to 1.1829 in.
W1065897
KiSC issued 06, 2006 A