I. Oil
Pump
1/\
....
•
,.
Pump cover 4. Dowel pin
2.
Feed
pump rotor
5.
Scavenger pump rotor
3.
Rotor housing 6. Pump shaft
1.
Oil
Pump Rotor Width
Feed
pump: 4 mm (0.16 in)
Scavenger pump:
18
mm (0.71 in)
2. Inner and Outer Rotor Dimensions
Clearance between
II
A"
and"
8"
Standard:
0.03 - 0.09 mm (0.0012 - 0.0035 in)
Limit:
0.15 mm (0.006 in)
,.
Inner rotor
2.
Outer rotor 3. Match marks
J.
Primary
Drive
The drive gear
is
mounted on
the
crankshaft;
the driven gear
is
mounted on the transmis-
sion and is integrated with the clutch assem-
bly.
1 . Check the drive gear and the driven gear
for obvious signs
of
wear or damage
from foreign
material within the primary
case.
3-23
2.
If the primary drive
is
excessively noisy
during operation,
replace both the drive
and the driven gears.
K.
Clutch
Clutch
housing
1.
Check the dogs
on
the clutch housing .
Look for cracks and signs
of
galling on
the edges.
If damage
is
moderate,
deburr;
if
severe, replace the clutch.
NOTE:
___________
_
Galling on the clutch plate splines will cause
erratic operation.
2.
Check the clutch housing bearing for
damage.
If damaged, replace the bear-
ing.
Clutch
boss
The clutch boss contains a built-in damper
beneath the first clutch
plate (clutch plate
2).
It
is
not normally necessary to remove
the
circlip and disassemble the built-in damper
unless there
is
serious clutch chattering.
1. Check the splines on the clutch boss
for
galling. If damage is slight to moderate,
deburr;
if
it is severe, replace the clutch
boss.
NOTE:
____________
_
Galling on clutch plate splines will cause er-
ratic operation.
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