wsm L503 Workshop Manual page 144

L3130 · L3430 · L3830 · L4630 · L5030, WSM
Oil Clearance between Crankshaft Journal and Crankshaft
Bearing 1
1. Measure the O.D. of the crankshaft journal with an outside
micrometer.
2. Measure the I.D. of the crankshaft bearing 1 with an inside
micrometer, and calculate oil clearance.
3. If the clearance exceeds the allowable limit, replace the
crankshaft bearing 1.
4. If the same size bearing is useless because of the crankshaft
journal wear, replace it with an undersize one referring to the
table and figure.
Factory spec.
Oil clearance between
crankshaft journal and
crankshaft bearing 1
Allowable limit
Factory
Crankshaft journal O.D.
spec.
Crankshaft bearing 1 Factory
I.D. spec.
(Reference)
• Undersize dimensions of crankshaft journal
Undersize
0.2 mm
0.008 in.
Dimension
2.8 to 3.2 mm radius
A
0.1102 to 0.1260 in. radius
1.0 to 1.5 mm radius
B
0.0394 to 0.0591 in. radius
D1503-M
51.721 to 51.740 mm
V1703-M
2.0363 to 2.0370 in.
V2203-M
C
D1803-M 59.721 to 59.740 mm
V2403-M 2.35122 to 2.35197 in.
The crankshaft journal must be fine-finished to higher than ∇∇∇∇
Replacing Crankshaft Bearing 1
(When removing)
1. Press out the used crankshaft bearing 1 using a crankshaft
bearing 1 replacing tool.
(When installing)
1. Clean a new crankshaft bearing 1 and crankshaft journal bore,
and apply engine oil to them.
2. Using a crankshaft bearing 1 replacing tool, press in a new
bearing 1 (2) so that its seam (1) directs toward the exhaust
manifold side.
Dimension (A) Factory spec.
(1) Seam
(2) Crankshaft Bearing 1
1-S57
0.040 to 0.118 mm
0.00157 to 0.00409 in.
0.2 mm
0.0079 in.
D1503-M
51.921 to 51.940 mm
V1703-M
2.0441 to 2.0449 in.
V2203-M
D1803-M 59.921 to 59.940 mm
V2403-M 2.35909 to 2.35984 in.
D1503-M
51.980 to 52.039 mm
V1703-M
2.0464 to 2.0488 in.
V2203-M
D1803-M 59.980 to 60.039 mm
V2403-M 2.36142 to 2.36374 in.
0.4 mm
0.016 in.
2.8 to 3.2 mm radius
0.1102 to 0.1260 in. radius
1.0 to 1.5 mm radius
0.0394 to 0.0591 in. radius
51.521 to 51.540 mm
2.0284 to 2.0291 in.
59.521 to 59.540 mm
2.34335 to 2.34409 in.
(0.8-S)
4.2 to 4.5 mm
0.1654 to 0.1772 in.
(3) Cylinder Block
KiSC issued 02, 2007 A
ENGINE
W1033717
W1033946