Section 02 ENGINE
Subsection 08 (LUBRICATION SYSTEM)
R1503motr127A
TYPICAL
NOTICE
Be careful not to damage the surface
of the rotary seal bore in PTO housing cover.
8. Remove and discard the oil seal behind rotary
seal.
1
R1503motr128A
1. Oil seal
Oil Pressure Pump Inspection
Inspect oil pump shaft, housing and cover for
marks or other damages.
Check i
nner rotor for corrosion pin-holes or other
damag
es. If so, replace oil pump shaft. Ensure
to als
o check oil pump housing and cover and re-
place
if damaged.
1
R1503motr129A
1. Pittings on the teeth
Using a feeler gauge, measure the clearance be-
tween inner and outer rotors.
2
R1503motr130A
1
C
A
B
1. Outer r
otor
2. Inner rotor
OUTER AND INNER ROTOR CLEARANCE
SERVICE LIMIT
A
B
C
0.25 mm (.0098 in)
If cl
earance between inner and outer rotors ex-
ceed
s the tolerance, replace water/oil pump shaft.
Ensu
re to also check oil pump housing and cover
and r
eplace if damaged.
If clearance between outer rotor and its bore in
oil pump exceeds the tolerance, replace the com-
plete oil pump and the PTO housing.
Using a vernier depth gauge, measure side wear
as shown.
100 smr2009-023
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