Kubota WSM 07-E3B Series Workshop Manual page 207

07-E3B SERIES, WSM
Oil Clearance between Crankpin and Crankpin Bearing (for
V2607-DI-E3B / V2607-DI-T-E3B)
1. Clean the crankpin and crankpin bearing (4).
2. Put a strip of plastigage on the center of the crankpin.
3. Install the connecting rod cap (1) and tighten the connecting rod
screws (2) to the specified torque, and remove the cap again.
4. Measure the amount of the flattening with the scale, and get the
oil clearance.
5. If the oil clearance exceeds the allowable limit, replace the
crankpin bearing (4).
6. If the same size bearing is useless because of the crankpin wear,
replace it with an undersize one referring to the table and figure.
NOTE

• Never insert the plastigage into the crankpin oil hole.
• Be sure not to move the crankshaft while the connecting rod
screws (2) are tightened.
Crankpin O.D. Factory spec.
Factory spec.
Oil clearance between
crankpin and crankpin
bearing
Allowable limit
IMPORTANT

• STD size crankpin bearing (4).
To replace it with a specific STD service part, make sure the
combination of the crankpin bearing ID color (3) and the
connecting rod mark.
Connecting rod
Mark Large-end in. dia.
Figure 50.010 to 50.020 mm
(A) 1.9689 to 1.9692 in.
Figure 50.000 to 50.010 mm
(B) 1.9685 to 1.9688 in.
(Reference)
• Undersize dimensions of crankpin
0.20 mm
Undersize
0.0079 in.
3.3 to 3.7 mm radius
Dimension A
0.13 to 0.14 in. radius
1.0 to 1.5 mm relief
*Dimension B
0.040 to 0.059 in. relief
46.780 to 46.791 mm dia.
Dimension C
1.8418 to 1.8421 in. dia.
The crankpin must be fine-finished to higher than 
*Holes to be de-burred and edges rounded with 1.0 to 1.5 mm
(0.040 to 0.059 in.) relief.
(1) Connecting Rod Cap
(2) Connecting Rod Screw
(3) ID Color
(4) Crankpin Bearing
(5) Center Wall Thick
S-104
46.980 to 46.991 mm
1.8496 to 1.8500 in.
0.011 to 0.058 mm
0.00044 to 0.0022 in.
0.20 mm
0.0079 in.
Crankpin bearing
Part
ID color Center wall thick
code
Blue 1J700- 1.496 to 1.501 mm
(L class) 22310 0.05890 to 0.05909 in.
Without
1J700- 1.491 to 1.496 mm
color
22330 0.05870 to 0.05889 in.
(S class)
0.40 mm
0.016 in.
3.3 to 3.7 mm radius
0.13 to 0.14 in. radius
1.0 to 1.5 mm relief
0.040 to 0.059 in. relief
46.580 to 46.591 mm dia.
1.8339 to 1.8342 in. dia.
(0.8S)
(A) Connecting Rod Mark : 2 Stamps
(B) Connecting Rod Mark : 1 Stamp
ENGINE
W1259635
KiSC issued 06, 2020 A