Piston And Connecting Rod - Kubota WSM 07-E3B Series Workshop Manual

07-E3B SERIES, WSM

(3) Piston and Connecting Rod

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.
V2607-DI-E3B
V2607-DI-T-E3B
Piston pin bore
I.D.
V3007-DI-T-E3B
V3307-DI-T-E3B
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.
V2607-DI-E3B
V2607-DI-T-E3B
Oil clearance
between piston
pin and small end
bushing
V3007-DI-T-E3B
V3307-DI-T-E3B
V2607-DI-E3B
V2607-DI-T-E3B
Piston pin O.D.
V3007-DI-T-E3B
V3307-DI-T-E3B
V2607-DI-E3B
V2607-DI-T-E3B
Small end
bushing I.D.
V3007-DI-T-E3B
V3307-DI-T-E3B
S-98
ENGINE
Factory 26.000 to 26.013 mm
spec. 1.0237 to 1.0241 in.
Allowable 26.05 mm
limit 1.026 in.
Factory 28.000 to 28.013 mm
spec. 1.1024 to 1.1028 in.
Allowable 28.05 mm
limit 1.104 in.
W1065759
Factory 0.014 to 0.034 mm
spec. 0.00056 to 0.0013 in.
Allowable 0.15 mm
limit 0.0059 in.
Factory 0.020 to 0.040 mm
spec. 0.00079 to 0.0015 in.
Allowable 0.15 mm
limit 0.0059 in.
Factory 26.006 to 26.011 mm
spec. 1.0239 to 1.0240 in.
Factory 28.006 to 28.011 mm
spec. 1.1026 to 1.1027 in.
Factory 26.025 to 26.040 mm
spec. 1.0246 to 1.0252 in.
Factory 28.031 to 28.046 mm
spec. 1.1036 to 1.1041 in.
W1065897
KiSC issued 06, 2020 A