Kubota WSM 05-E4B Series User Manual

Undersize
Engine mod-
el
0.2 mm
0.008 in.
0.4 mm
0.02 in.
The crankshaft journal must be fine-finished to higher than Rmax
= 0.8 S
* Holes to be de-burred and edges rounded with 1.0 to 1.5 mm
(0.040 to 0.059 in.) relief.
A: Dimension A
B: Dimension B
C: Dimension C
6.34 Replacing crankshaft bearing 1
T
ools required
• Crankshaft bearing 1 replacing tool
Removing crankshaft bearing 1
1. Press
out the used crankshaft bearing 1 with the
crankshaft bearing 1 replacing tool.
Installing crankshaft sleeve
1. Clean a new crankshaft bearing 1 and crankshaft
journal bore and apply engine oil to them.
2. Make sure that the seam (1) of the new bearing 1
(2) points to the exhaust manifold side (see the
figure).
3. Press fit the new crankshaft bearing 1 (2) with the
crankshaft bearing replacing tool.
Dimension (A)
Service specifi-
cation
0.00 to 0.30 mm
0.00 to 0.011 in.
(1) Seam
(2) Crankshaft bearing 1
(3) Crankcase
(A)
Dimension
6.35 Checking oil clearance between
crankshaft journal and crankshaft
bearing 2, 3
Tools required
• Plastigauge
1. Clean
the crankshaft journal and crankshaft
bearing.
2. Put a strip of plastigauge on the center of the
journal.
IMPORTANT
• Do not put the plastigauge into the oil hole
of the journal.
3. Install the main bearing case.
4. Tighten the main bearing case screws 1 to the
specified torque.
NOTE
• When you tighten
the main bearing case
screws 1, do not move the crankshaft.
Tightening tor-
que
Main bearing case
screw 1
30 to 34 N⋅m
3.0 to 3.5 kgf⋅m
22 to 25 lbf⋅ft
5. Remove the main bearing case again.
4. ENGINE
SERVICING
6. Servicing
4-68
05-E4B SERIES,05-E4BG SERIES
KiSC issued 03, 2023 A

Kubota WSM 05-E4B Series Specifications

General

Brand	Kubota
Model	WSM 05-E4B Series
Category	Engine
Language	English