Operation CHARM: Car repair manuals for everyone.

Oil Pump

Part 1 Of 2:




Part 2 Of 2:






DISASSEMBLY
1. Remove oil pump drive gear (1) and driven gear (2).
2. Remove pin (3) from oil pump assembly (29).
3. Remove plug (4), spring (5), torque converter clutch control valve (6) and spring (7).
4. Remove pin (8) from oil pump assembly (29).
5. Remove torque converter regulator sleeve (9), converter clutch regulator spring (10), converter clutch regulator valve (11), isolator spring (12) and isolator valve (13).
6. Remove pin (14) from oil pump assembly (29).
7. Remove enable valve spring (16), spring guide (15) and anable valve (17).
8. Remove snap ring (18) from oil pump assembly (29).
9. Remove spring seat (19), spring (20) and throttle signal accumulator piston (21).
10. Remove sleeve pin (22) from oil pump assembly (29).
11. Remove boost valve sleeve (23), boost valve (24), spring seat (25), valve spring (26), spring seal (27), and pressure regulator valve (28).

INSPECTION AND REPAIR
Visual Check:
If any damage, deformation or wear is found, replace the damaged part.

REASSEMBLY
1. Lubricate and preinstall pressure regulator spring seat (27) on valve (28), with the flat side against shoulder.
2. Install pressure regulator valve (28) and spring seat (27) assembly, valve spring (26), and spring seat (25) with the flat side away from spring to oil pump assembly (29).
3. Assemble boost valve (24) into sleeve (23).
4. Install boost valve and sleeve assembly, and sleeve pin (22) to oil pump assembly (29).
5. Install throttle signal accumulator piston (21), spring (20), and spring seat (19), with the flat side away from the spring, and snap ring (28) to oil pump assembly (29).
6. Install enable valve (17), spring guide (15), enable valve spring (16) and retainer pin (14) to oil pump assembly (29).
7. Assemble torque converter regulator spring (10) and torque converter regulator valve (11) into sleeve (9).
8. Install isolator valve (13), isolator valve spring (12) and the torque converter regulator sleeve and valve assembly into the oil pump assembly (29).
9. Install torque converter clutch control valve spring (7), torque converter clutch control valve (6), plug (4) and seal ring (5) and retainer pin (3) to oil pump assembly (29).
10. Install oil pump driven gear (2) and drive gear (1).