wsm L503 Workshop Manual page 139

L3130 · L3430 · L3830 · L4630 · L5030, WSM
Replacing Idle Gear Bushing
(A) (When removing)
1. Using an idle gear bushing replacing tool, press out the used
bushing.
(B) (When installing)
1. Clean a new idle gear bushing and idle gear bore, and apply
engine oil to them.
2. Using an idle gear bushing replacing tool, press in a new bushing
(service parts) to the specified dimension. (See figure.)
Camshaft Alignment
1. Support the camshaft with V blocks on the surface plate at both
end journals.
2. Set a dial indicator with its tip on the intermediate journal.
3. Measure the camshaft alignment.
4. If the measurement exceeds the allowable limit, replace the
camshaft.
Camshaft alignment Allowable limit
Cam Height
1. Measure the height of the cam at its highest point with an outside
micrometer.
2. If the measurement is less than the allowable limit, replace the
camshaft.
Factory spec.
Cam height of intake
Allowable limit
Factory spec.
Cam height of exhaust
Allowable limit
1-S52
ENGINE
W1031083
0.01 mm
0.0004 in.
W1031413
33.90 mm
1.3346 in.
33.85 mm
1.3327 in.
33.90 mm
1.3346 in.
33.85 mm
1.3327 in.
W1031532
KiSC issued 02, 2007 A