Astro Van M V6-262 4.3L VIN W CPI (1992)
1.
Press sleeve into housing using a suitable socket and press.
2.
Install dowel pin, seal and pressure plate spring. Fig. 9.
3.
Install O-ring seal, pressure plate and dowel pins. Mark top of pressure plate where pin enters from underneath to ease alignment with dowel pin
during assembly, Fig. 10.
4.
Lubricate O-ring, pump ring, rotor and vanes with power steering fluid. Install vanes and rotor with rounded edge facing away from rotor. Ensure
counterbore of rotor faces driveshaft end of housing.
5.
Install pump ring with identification marks facing up, then install O-ring seal and thrust plate. Thrust plate dimples must line up with bolt holes in
housing and plate must engage pump ring dowel pins.
6.
Using a press to compress thrust plate, install retaining plate with the center opening of ring with bolt hole nearest the access hole, Fig. 11.
7.
Using a suitable socket and press, install driveshaft seal into housing until it bottoms.
Fig. 6 Driveshaft & bearing removal
Fig. 5 Driveshaft retaining ring removal
8.
Install bearing onto driveshaft, Fig. 6, then slide assembly into housing while rotating driveshaft so shaft serrations engage with rotor.
9.
Insert retaining ring ensuring large tab of ring is properly located. Refer to Fig. 5.
10.
Install flow control spring, control valve, O-ring seal and O-ring.
11.
Install reservoir or return tube, then clips if equipped.
System Bleeding
1.
Fill pump fluid reservoir to proper level and let fluid settle for at least two minutes.
2.
Start and run engine for a few seconds. Do not turn steering wheel.
3.
Turn engine Off. Check fluid level, add fluid if necessary.
4.
Repeat above procedure until fluid level remains constant after running engine.
5.
Raise front end of vehicle so wheels are off ground.
6.
Start engine. Slowly turn steering wheel in both directions, lightly contacting wheel stops.
7.
Add power steering fluid, if necessary.
8.
Lower vehicle and turn steering wheel slowly from lock to lock.
9.
Stop engine. Check fluid level and refill as required.
10.
If fluid is extremely foamy, allow vehicle to stand a few minutes and repeat above procedure.
