Cub Cadet 8404 - Manual (Page 83)

ENGINE SYSTEM
2-61 D615-W02 May-2003
615W2C7A
615W2C8A
615W2C9A
(B) Rotor end clearance of oil pump
1. Put a strip of plastigage on the rotor and assemble
the pump.
2. Disassemble the pump and measure the amount
of the flattening with the scale to get the clearance.
3. If the clearance exceeds the allowable limit, replace
the pump.
End
clearance Factory
spec.
Allowable
limit
0.105 ~ 0.150 mm
0.00423 ~ 0.00591 in.
0.20 mm
0.0079 in.
b. Servicing
(A) Rotor and lobe clearance of oil pump
1. Measure the clearance between the outer and in-
ner rotor with a feeler gauge.
2. Measure the clearance between the outer and the
housing with a feeler gauge.
3. If the clearance exceeds the allowable limit, replace
the pump.
Outer and
inner rotor
clearance
Outer and
inner
housing
clearance
Factory
spec.
Allowable
limit
Factory
spec.
Allowable
limit
0.10 ~ 0.16 mm
0.0039 ~ 0.0063 in.
0.20 mm
0.0079 in.
0.11 ~ 0.19 mm
0.0043 ~ 0.0075 in.
0.25 mm
0.0098 in.