Cub Cadet 8454 Service Manual page 79

(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, re-
place the crankshaft.
Misalignment allowable
limit
(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.
Oil Factory
clearance spec.
Allowable
limit
Journal Allowable
O.D. limit
Bearing 1 Allowable
I.D.
limit
(D) Replacing crankshaft bearing 1
1. Press out the crankshaft bearing 1 with 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.
D569-W02 May-2003
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
0.08 mm
0.0031 in.
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
ENGINE
569W2A9A
569W2B0A
569W2B1A
2-57