Operation Manual

OIL PUMP
5-67
EAS24960
CHECKING THE OIL PUMP
1. Check:
• Oil pump driven gear “1”
• Oil pump housing 2 “2”
• Oil pump housing 1 “3”
Cracks/damage/wear → Replace the oil
pump assembly.
2. Check:
• Oil pump operation
Rough movement → Repeat steps (1)
and (2) or replace the oil pump assembly.
EAS24971
CHECKING THE RELIEF VALVE
1. Check:
• Relief valve body
Damage/wear → Replace.
EAS4B51030
CHECKING THE OIL PIPES
1. Check:
• Oil pipe
• Oil delivery pipe
Damage → Replace.
Obstruction → Wash and blow out with
compressed air.
EAS4B51031
CHECKING THE OIL PUMP DRIVE CHAIN
1. Check:
• Oil pump drive chain
Cracks/stiffness → Replace the oil pump
chain and oil pump assembly as a set.
EAS25000
ASSEMBLING THE OIL PUMP
1. Lubricate:
• Inner rotor
• Outer rotor
• Oil pump shaft
(with the recommended lubricant)
2. Install:
• Inner rotors
TIP
When installing the inner rotor, align the pins
“1” in the oil pump shaft with the grooves “a” in
the inner rotor.
3. Check:
• Oil pump operation
Refer to “CHECKING THE OIL PUMP” on
page 5-67.
EAS25020
INSTALLING THE OIL PUMP
1. Install:
• Oil pump assembly
Recommended lubricant
Engine oil
Oil pump bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
a
1
a