Power Steering Pump: Overhaul: Reassembly
- Lubricate all "O" rings, seals and seal surfaces with power steering fluid. On Jeeps, lubricate "O" rings with petroleum jelly. With pump on flat surface, drive new shaft seal in until it bottoms on bore shoulder.
- Clamp body in vise with shaft pointing down. Install end plate and pressure plate "O" rings on body. Install body to reservoir "O" rings. Install on pump body.
- Place shaft, splined end up, in soft-jawed vise. Install thrust plate on shaft with smooth, ported side up. Slide rotor, counter bore down, over splines.
- Install new rotor lock ring. Ensure ring is seated in groove. Install 2 dowel pins into holes in pump cavity. Insert drive shaft, rotor, and thrust plate assembly into pump cavity. Align locating holes with dowel pins.
- Slide cam ring over rotor and onto dowel pins, with arrow on ring facing toward rear of housing. Install vanes in rotor slots with radius edge facing out towards cam ring inner surface. Position pressure plate on dowel pins with circular spring depression facing rear of housing.
- Using a 1 1/4" socket in groove of pressure plate, press down on socket with both thumbs to seat assembly on "O" ring in pump cavity. Place spring in groove in pressure plate. Place end cover lip edge over spring.
- Using thumb or arbor press, press end cover down below retaining ring groove. Seat retaining ring in groove. Take care to prevent cocking end cover in bore or distorting assembly.
- Using a punch, tap retaining ring ends around in groove until opening is opposite flow control valve bore. This ensures maximum retention of retaining ring.
- Install new "O" rings to reservoir, mounting studs, and flow control valve. Place reservoir on pump body. Align mounting stud holes. Install studs.
- Using a soft-faced hammer, tap reservoir down on pump. Install flow control valve spring and valve assembly slotted end up. Install new "O" ring on pressure hose fitting uppermost groove.CAUTION: DO NOT install pressure hose "O" ring in lower groove. This will restrict relief outlet orifice.
- Install pressure hose fitting. Tighten mounting studs. Tighten hose fitting. Remove pump from vise. Install mounting bracket and pulley.