Subsection 04 (LUBRICATION SYSTEM)
vmr2006-042-013_a
1. Pittings on the teeth
Using a feeler gauge, measure the clearance of
inner and outer rotors as shown.
CLEARANCE OF INNER AND OUTER ROTOR
SERVICE LIMIT
0.25 mm (.0098 in)
A
A
A
2
1
vmr2006-042-014_a
1. Outer rotor
2. Inner rotor
A. 0.25 mm (.0098 in)
If clearance of inner and outer rotors exceeds the
tolerance, replace oil pump rotors. Ensure to also
check oil pump cover. If damaged, replace the
complete oil pump assembly.
If clearance between outer rotor and its bore in
crankcase exceeds the tolerance, replace the
complete oil pump rotors and/or the crankcase.
Using a depth gauge, measure the axial clearance
of the oil pump as shown.
vmr2006-042-015
OIL PUMP — MEASUREMENT “A”
vmr2006-042-016
OIL PUMP COVER — MEASUREMENT “B”
Substract measurement
B
from measurement
A
to obtain axial clearance.
OIL PUMP AXIAL CLEARANCE
SERVICE LIMIT
0.20 mm (.008 in)
NOTE:
When the axial clearance of the oil pump
assembly increases, the oil pressure decreases.
Installing the Oil Pump
For installation, reverse the removal procedure.
Pay attention to the following details.
NOTE:
When installing the oil pump rotors, make
sure both markings are on the outer side.
10
vmr2016-402
