OC60-E2, OC95-E2, WSM
ENGINE
S-50
Clearance between Rotor and Cover
1. Put a strip of press gauge onto the rotor face with grease.
2. Install the cover and tighten the screws.
3. Remove the cover carefully, and measure the depression of
press gauge with a sheet of gauge.
4. If the clearance exceeds the allowable limit, replace the oil
pump rotor assembly.
(5) Starter
Commutator and Mica
1. Check the contact face of the commutator for wear, and grind
the commutator with emery paper if it is slightly worn.
2. Measure the commutator O.D. with an outside micrometer at
several points.
3. If the minimum O.D. is less than the allowable limit, replace the
armature.
4. If the difference of the O.D.'s exceeds the allowable limit,
correct the commutator on a lathe to the factory specification.
5. Measure the mica undercut.
6. If the undercut is less than the allowable limit, correct it with a
saw blade and chamfer the segment edges.
clearance between rotor
and cover
Factory spec.
0.02 to 0.06 mm
0.0008 to 0.0024 in.
Allowable limit
0.25 mm
0.0098 in.
0000009302E
Commutator O.D.
Factory
spec.
OC60-E2
28.0 mm
1.10 in.
OC95-E2
30.0 mm
1.18 in.
Allowable
limit
OC60-E2
28.0 mm
1.10 in.
OC95-E2
29.0 mm
1.14 in.
Difference of O.D.'s
Factory spec.
Less than 0.05 mm
0.0020 in.
Allowable limit
0.40 mm
0.0157 in.
Mica undercut
Factory
spec.
OC60-E2
0.45 to 0.75 mm
0.018 to 0.030 in.
OC95-E2
0.50 to 0.80 mm
0.020 to 0.031 in.
Allowable
limit
OC60-E2
0.20 mm
0.0079 in.
OC95-E2
(1)
Segment
(a)
Correct
(2)
Undercut
(b)
incorrect
(3)
Mica
0000009303E
