Power Steering Pumps - SAGINAW Vane: Overhaul: Reassembly

NOTE: Lubricate all "O" ring seals and seal areas with power steering fluid.

Using suitable tool, install new shaft seal in pump housing with metal back upward (do not use more force than necessary to seat seal in housing). Install new pressure plate and end plate "O" ring seals in grooves in pump housing. Install thrust plate on drive shaft with ported face toward splined end of shaft. Install rotor on shaft with counterbored end toward thrust plate.
Clamp shaft in soft jawed vise and install new retaining ring on splined end of shaft by prying ring open and sliding it down over shaft until it seats itself in ring groove. Insert drive shaft with thrust plate and rotor into housing. Make sure shaft it properly seated. Place pump housing in vise, hub down, using flat on hub for clamping surface.
Install dowel pins through thrust plate into pump housing. Install cam ring on dowel pins with rotation arrow toward rear of pump housing and pointing in direction of pump rotation. Install vanes in slots of rotor, with radius edges toward outside of rotor, so they ride on cam ring. Install pressure plate on dowel pins with ported face toward cam ring. Install plate so that narrow slots in plate engage dowel pins. Install pressure plate spring.
Lubricate outside diameter of end plate with vaseline and install end plate in pump housing. Place pump housing in arbor press, depress end plate below retaining ring groove, and install end plate retaining ring.
NOTE: Make sure ring is completely seated.

Install new outer pump housing "O" ring seal, flow control valve opening "O" ring seal and mounting bolt "O" ring seals in pump housing.
Install reservoir on pump housing. Install flow control valve spring. Install flow control valve, hex head screw goes into bore first. Install pressure union using a new "O" ring seal and tighten to 30 ft.lbs. Install mounting studs on pump and tighten studs to 25-35 ft.lbs. Install pump mounting bracket loosely. Position woodruff key in pump shaft, slide pulley on shaft as far as possible
CAUTION: (Do not drive on pulley) , install new pulley nut finger tight, then tighten nut to 60 ft.lbs. (50-70 ft.lbs.).
Connect hose fittings and torque to 35 ft.lbs. Fill pump reservoir with power steering gear fluid, then turn pulley backward (counterclockwise) until air bubbles stop appearing in reservoir.