D Isassem B; Cleaning And In S P E C Tio; Saginaw Power Steering Pump Model C - Chevrolet 1988 Light Duty Truck Repair Manual

10. R otor
M. The C ounterbore
Faces Drive S haft
End of H ou sing
Figure 4 4 — Installing the Rotor
SAGINAW POWER STEERING PUMP—MODEL P
DISASSEMBLY
B R em o ve or D isco n n ect (F ig u re 47)
• Clean the exterior of the pump with solvent and
crocus cloth.
1. Bolt (71) and fitting (73).
2. Reservoir (70) and seals (69).
3. End plate retaining ring (68) using a screwdriver and
punch.
• End plate (67) and pressure plate spring (66).
4. Control valve (58), control valve spring (59) and
O-ring (60).
5. Pressure plate (65). Tap lightly on the driveshaft with
a rubber mallet.
6. Pump ring (64) and vanes (63).
• Shaft retaining ring (62), pump rotor (61) and
thrust plate (56).
7. Driveshaft (50).
8. Seal (51) from the housing (53).
• Dowel pins (55) and O-rings (54).
• Seal (52).
POWER STEERING 3B3-19
N. H ou sing A lig n m e n t
In d e n ta tio n s
P . Id e n tific a tio n Marks
on Pum p Ring
12. O-Ring Seal
Figure 45 — Aligning and Installing the Pump Ring
F-02159
CLEANING AND INSPECTION
Clean
a y
All parts w ith solvent and blow dry.
In sp ect (F ig u re 47)
1. Rotating group components.
— Vane (63) tips for scoring or wear.
— Fit of vanes (63) in rotor (61) for sticking or
excessive play.
— Rotor slots for burrs and excessive wear at the
thrust faces.
— Inner surface of the pump ring (64) for scoring
or wear.
— Thrust plate (56) and pressure plate (65) for
wear on plate surfaces.
— If heavy wear is present, or parts are faulty,
replace the entire rotating group.
2. Seal (51) for leakage, cracking or swelling. If so,
replace seal.
3. Driveshaft (50) for excessive burning or scoring.
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F-02158