Cub Cadet 8404 - Manual (Page 79)

ENGINE SYSTEM
2-57 D615-W02 May-2003
11
10 9
615W2C1A
615W2C0A
(C)Crankshaft journal and bearing 1 oil clearance
1. Measure the I.D. of the crankshaft bearing 1 with an
inside micrometer.
2. Measure the O.D. of the crankshaft journal with an
outside micrometer.
3. If the clearance exceeds the allowable limit, replace
the bearing referring to Replacing Crankshaft Bear-
ing 1.
(D)Replacing crankshaft bearing 1
1. Press out the crankshaft bearing 1 replacing tool.
2. Clean a new crankshaft bearing 1 and bore, and
apply engine oil to them.
3. Press fit a new bearing 1 using a inserting tool,
taking due care to see that the seam of bearing 1
faces the exhaust manifold side.
Oil
clearance
Journal
O.D.
Bearing 1
I.D.
Factory
spec.
Allowable
limit
Allowable
limit
Allowable
limit
0.040 ~ 0.118 mm
0.00157 ~ 0.00465 in.
0.20 mm
0.0079 in.
51.921 ~ 51.940 mm
2.04413 ~ 2.04488 in.
51.980 ~ 52.039 mm
2.04646 ~ 20.4878 in.
(1) Seam
615W2B9A
(B) Crankshaft alignment
1. Support the crankshaft with V blocks on the surface
plate at its front and rear journals and set a dial
indicator with its tip on the intermediate journal.
2. Rotate the crankshaft in the V blocks and get the
misalignment (half of the measurement).
3. If the misalignment exceeds the allowable limit,
replace the crankshaft.
Misalignment
Allowable
limit
0.08 mm
0.0031 in.