Cub Cadet 8454 Service Manual page 75

(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 Factory
clearance spec.
Allowable
limit
Journal Factory
spec.
O.D.
Bore Factory
I.D.
spec.
(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
Allowable
Eccentricity
limit
(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
4A220 (IN.) specification
height
allowable limit
(EX.) specification
allowable limit
4A200T (IN.)
specification
allowable limit
(EX.)
specification
allowable limit
D569-W02 May-2003
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
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.
0.05 mm
0.002 in.
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.
ENGINE
569W299A
569W2A0A
569W2A1A
2-53