Disassembly and Assembly

DISASSEMBLY

NOTE: Oil pump for 3.0 L model cannot be disassembled. If the oil pump is malfunctioning, replace the oil pump as an assembly.





1. Using ST, place oil pump in a vise and remove four bolts which secure rear cover.
ST 341 99AE020 ATTACHMENT





2. Remove pressure plate.





3. Using a screwdriver, pry retaining ring off.

CAUTION: Do not remove cam ring, rotor, etc.

4. Install pressure plate.
5. Temporarily install rear cover to front casing.





6. Remove oil pump pulley.
7. Place oil pump in a vise.

CAUTION: Do not place oil pump directly in the vise, use soft pads and hold oil pump lightly to protect the pump.





8. Pry oil seal off using a screwdriver.

CAUTION: Be careful not to scratch inner surface of casing.

ASSEMBLY
1. Reassembly precautions
1. Whenever O-rings, oil seals, and snap rings are removed, they must be replaced with new ones.
2. Thoroughly wash parts and allow to dry. They must be kept free from cleaning oil and dust.
3. Reassembly procedure must be performed in clean place. Ensure that parts are kept away from waste threads or other dust particles.
4. Cleaning oil tends to stay inside the front casing. Remove it completely by blowing compressed air.
5. Ensure that parts are free from rust. (Use specified hydraulic oil for rust prevention after cleaning and drying.)
6. Reverse the sequence of disassembly procedures.
Apply grease to oil seal and inner surface of front casing (at bearing location).

CAUTION: Make sure that the front body internal surfaces are free from damage.

3. Temporarily install rear cover to front body.





4. Attach ST to front body. Using a press, install oil seal.
ST 341 99AE030 INSTALLER
5. Install pump pulley to front body.
6. Using ST, place oil pump in a vise.
ST 341 99AE020 ATTACHMENT
7. Remove rear cover.





8. Using 10 mm box wrench, tap retaining ring into shaft groove.





9. Install pressure plate as shown in the figure.
10. Apply specified hydraulic oil to O-rings and fit them into front casing and pressure plate.
11. Install seal ring to pressure plate.





12. With knock pin positions aligned, install rear cover.
Tightening torque: 27.5 Nm (2.8 kgf-m, 20.3 ft. lbs.)

CAUTION: Loosely tighten bolts in the sequence (A), (B), (C), and (D) shown in figure. Then, tighten in the same sequence.

13. When reassembly procedures have been completed, turn shaft by hand to ensure it turns smoothly. If it binds or other unusual conditions are evident, disassemble again and check for foreign matter trapped on sliding surfaces and improper installation. Eliminate the cause of trouble.
14. Check followings by referring to "CHECK" article.
^ Excessive play in pulley shaft
^ Ditch deflection of pulley
^ Resistance to rotation of pulley
^ Measurement of generated oil pressure