Cub Cadet 8454 - Manual (Page 75)

ENGINE
2-53 D569-W02 May-2003
569W2A1A
569W2A0A
569W299A
(G) Camshaft oil clearance
1. Measure the I.D. of the camshaft bore on the crank-
case with an inside micrometer.
2. Measure the O.D. of the camshaft journal with an
outside micrometer.
3. If the clearance exceeds the allowable limit, replace
the shaft.
Oil
clearance
Journal
O.D.
Bore
I.D.
Factory
spec.
Allowable
limit
Factory
spec.
Factory
spec.
0.050 ~ 0.091 mm
0.00197 ~ 0.00358 in.
0.15 mm
0.0059 in.
39.934 ~ 39.950 mm
1.57221 ~ 1.57284 in.
40.000 ~ 40.025 mm
1.57480 ~ 1.57579 in.
(H) Camshaft alignment
1. Support the camshaft with V blocks on the surface
plate at both end journals and set a dial indicator
with its tip on the intermediate journal.
2. Rotate the camshaft in the V block and get the ec-
centricity (half of the measurement).
3. If the eccentricity exceeds the allowable
Eccentricity Allowable
limit
0.05 mm
0.002 in.
(I) Cam height
1. Measure the height of the camshaft lobes at their
largest. O.D. with an outside micrometer.
2. If the measurement is less than the allowable limit,
replace the camshaft.
C a m
height specification
allowable limit
specification
allowable limit
specification
allowable limit
specification
allowable limit
33.59 mm 1.322 in.
33.54 mm 1.320 in.
33.69 mm 1.326 in.
33.64 mm 1.324 in.
33.90 mm 1.335 in.
33.85 mm 1.333 in.
33.70 mm 1.327 in.
33.65 mm 1.325 in.
4A220
4A200T
(IN.)
(EX.)
(IN.)
(EX.)