Honda TRX400EX FOURTRAX 1999, Service Manual

Page: 59 / 263

LUBRICATION SYSTEM
DISASSEMBLY
BOL
Remove the two bolts and separate the pump base
from the pump spacer.
Remove the following:
- drive pin
- thrust washer
- inner rotor
-
outer rotor
Separate the pump body from the pump spacer.
Remove the following:
- pump shaft
- drive pin
- dowel pins
-
inner rotor
- outer rotor
INSPECTION
WASH
SHAFT AND PIN PUMP BODY
ROTORS PINS PUMP SPACER
BODY SIDE:
NOTE:
Measure at several places and use the largest read-
ing to compare the service limit. If any portion of the
oil pump is worn beyond the specified service limits,
replace the oil pump as an assembly.
Install the inner and outer rotors into the pump base
and pump body.
Install the shaft with the drive pin into the
inner rotor and measure rotor tip clearance.
SERVICE LIMIT
0.20
mm 10.008
4-3