Pontiac tempest 1968 Service Manual page 600

S T E E R I N G 9-43
F i g . 9-76 Removing Pressure Plate
6. Remove end plate and spring. End plate is
spring-loaded and w i l l generally sit above the hous­
ing level. If sticking should occur, a slight tapping
action will free the plate (Fig. 9-74)„
7. Remove end plate O-ring.
8. With pump housing turned over, remove flow
control valve and spring (Fig. 9-75) and tap housing
on wood block until pressure plate falls free (Fig.
9-76),
9. Remove pressure plate, pump ring and vanes,
being careful not to drop parts (Fig. 9-77).
10. Remount housing in vise. Using a suitable
tool, remove shaft retainer ring on end of drive
shaft.
11. Remove rotor and thrust plate.
12. Remove shaft through front of housing (Fig.
9-78).
CLEAN PARTS
Carefully clean all parts, except O-ring seals
which are to be replaced and should not be immersed
in cleaning solvent. Lubricate all O-ring seals and
the drive shaft seal with vaseline and install in
proper location. Be sure not to immerse drive shaft
seal in cleaning solvent as this could damage it.
Fig. 9-79 shows an exploded view of the pump.
• ASSEMBLY
Be sure a l l . parts are clean during reassembly.
1. Insert shaft at hub end of housing, spline end
entering mounting face side (Fig. 9-80).
2. Install thrust plate on dowel pins with ported
face to rear of pump housing (Fig. 9-81).
F i g . 9-77 Pressure Plate and Rotor Ring Removed
3. Install rotor (must be free on splines) on pump
shaft at splined end.
NOTE: Assemble rotor with flat side toward rear
of pump (Fig. 9-82).
4. Using suitable tool, install shaft retainer.
5. Install pump ring on dowel pins with rotation
arrow facing to rear of pump housing (Fig. 9-83).
6. Install vanes in rotor slots with radius edge
towards outside (Figs. 9-84 and 9-85).
Fig. 9-78 Removing Pump Shaft