Com Ponent R E P A - Chevrolet 1988 Light Duty Truck Repair Manual

Key No.
10 - PLA TE, TH R U S T
filler hole. A fter the oil is drained from the reservoir, re­
place the cap.
COMPONENT REPAIR
C lean
• Exterior of the pump with solvent.
CONTROL VALVE
R em o ve or D isco nn ect (F ig u re 48)
1. Pump from vehicle if necessary for access.
2. Fitting (7) and O-ring (6).
3. Control valve assembly (5).
4. Flow control spring (4).
Install or C on n ect
1. Flow control spring (4).
2. Control valve assem bly (5).
3. O-ring (6) on fitting (7).
4. Fitting into the hydraulic pump housing assem bly
2
( ).
T ig h ten
• Fitting to 75 N m (55 ft. lbs.).
Part Name
1 - TU B E, RETURN
2 - H O U S IN G A SM , HYD PUMP
3 - SEAL, D RIVE SH AFT
4 - S PR IN G , FLO W C O N TR O L
5 - VA LV E A S M , C O N TR O L
6 - SEAL, O-R IN G
7 - F ITTIN G , O-R IN G UNION
8 - S H A F T, DRIVE
9 - PIN, PU M P RING D O W EL (2)
Figure 48 — Power Steering Pump — Model CB
POWER STEERING 3B3-21
Key No. Part Name
11 - RING, PUMP
12 - VA NE (10)
13 - R O TO R, PUM P
14 - RING, S H A F T R E TA IN IN G
15 - P LA TE , PRESSURE
16 - SEA L, O-R IN G
1 7 -S P R IN G , PR ESSU RE PLATE
18 - SEA L, O-R IN G
19 - CO VER , END
20 - RING, R E TA IN IN G
DRIVE SHAFT SEAL
W ithout Disassembly of Pump)
R em ove or D is c o n n ec t (F ig u re 49)
Tool Required:
J 7728 Seal Installation Tool
1. Pump from the vehicle if necessary for access.
• Protect the drive shaft (8) with shim stock.
• Use a small chisel to cut the drive shaft seal (3) and
discard the seal.
Install or C o n n e c t (F ig u re 50)
• Lubricate the new drive seal (3) with power steering
fluid.
1. Drive shaft seal (3) into housing (2) with J 7728.
■CHISEL
2-HOUSING ASM, HYD PUMP
3-SEAL, DRIVE SHAFT
8-SHAFT, DRIVE
Figure 49 — Shaft Seal Removal
F-04814
F-04815