Oil Pump, Primary Drive and Starter Drive

Submitted by xjcdadmin on Tue, 06/08/2010 - 01:10

Model(s)

OIL PUMP

1. Remove:
•Screw
• Pump cover 1
• Pump shaft 2
• Pin 3
• Inner rotor 4
• Outer rotor 5
• Spring 6
• Relief valve 7

2. Measure:
•Clearance "A" (between inner rotor 1 and outer rotor 2
• Clearance "B" (between outer rotor 2 and pump housing 3 )

Out of specification -> Replace oil pump.

Oil Pump Clearance:

Clearance A

0.03 ~ 0.09 mm (0.0012- 0.0035 in)

Clearance B

0.03 ~ 0.08 mm (0.0012- 0.0031 in)

PRIMARY DRIVE

1. Inspect:
• Primary drive gear 1
• Primary driven gear2

Wear/Damage -> Replace both gears,
Excessive noises during operation-► Replace both gears.

Primary Reduction Ratio:

No. of teeth

Ratio

Drive

Driven

1.672

STARTER DRIVE

Electric Starter Clutch

1. Check:
• Roller 1 operation
• Spring 2 operation
• Spring cap 3 operation

Unsmooth operation -> Replace one-way clutch.

2. Inspect:
• Surface 4 of the idle gear

Pitting/Wear/Damage -> Replace.

Starter Clutch Shaft (A.C.G. shaft)

1. Check:
• Shaft 1
• Oil seal 2

Wear/Damage — Replace.

• Bearing 3

Unsmooth operation - Replace.