Section 05
ENGINE (4-TEC)
Subsection 07
(LUBRICATION SYSTEM)
SMR2002_071_05_07A.FM
05-07-11
– Remove rotary seal
no. 25
with a screwdriver.
CAUTION:
Be careful not to damage the surface
of the rotary seal bore in PTO housing cover.
– oil seal
no. 26
.
1. Oil seal
Inspection
Inspect oil pump shaft assembly, housing and cov-
er for marks or other damages.
Check inner rotor for corrosion pin-holes or other
damages. If so, replace oil pump shaft assembly.
Ensure to also check oil pump housing and cover
and replace if damaged.
1. Pittings on the teeth
Using a feeler gauge, measure the clearance be-
tween inner and outer rotors.
1. Outer rotor
2. Inner rotor
If clearance between inner and outer rotors ex-
ceeds the tolerance, replace coolant/oil pump shaft
assembly. Ensure to also check oil pump housing
and cover and replace if damaged.
If clearance between outer rotor and its bore in oil
pump exceeds the tolerance, replace the complete
oil pump and the PTO housing.
R1503motr127A
1
R1503motr128A
OUTER AND INNER ROTOR CLEARANCE
mm (in)
SERVICE LIMIT
A
0.25 mm (.009 in)
B
C
1
R1503motr129A
2
R1503motr130A
1
C
A
B
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Summary of Contents for GTX 4-TEC 5573 2002
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