Oil Pump Assembly
OIL PUMPComponents
Disassembly
1. Remove O-ring from oil pump housing.
2. Remove the five bolts and reaction shaft support from the housing.
3. Remove the oil pump drive and driven gears from pump the housing.
4. Make reassembly alignment marks on the drive and driven gears.
5. Remove the steel ball from the housing.
6. Remove the two seal rings from the reaction shaft support.
Inspection
1. Measure the gear side clearance.
Drive and driven gear side clearance: 0.03 - 0.05 mm (0.0012 - 0.0020 inch).
Reassembly
1. After immersing the drive and driven gears in ATF, install them into the pump housing. When reusing the gears, install them with the mating marks properly aligned.
2. Install the steel ball in the hole as shown in the illustration.
3. Install the two seal rings coated with ATE on the reaction shaft support.
4. Loosely install the reaction shaft support on the pump housing. Tighten the five bolts finger tight.
5. With the reaction shaft support properly positioned on the pump housing, using special tools (09452-21401, 09452-21301) tighten the five bolts to 10 - 12 Nm (100 - 120 kgf.cm; 7 - 9 ft. lbs.)
6. Make sure that the oil pump gear turns freely.
7. Install a new O-ring in the groove provided in the circumference of the pump housing, and apply petroleum grease to the circumference of the O-ring.
8. Pry off the pump housing oil seal using a screwdriver.
9. Using special tool (09452-21200) install the oil seal to the pump housing. Apply a thin coat of ATF to the oil seal lip before installation.