Drive Shaft Seal Replacement; Pump Reservoir Replacement - GMC T Series 1994 Repair Manual

Key No. Part Name
1 - SEAL, O -R IN G
2 - VA LVE ASM , C O N T R O L
3 - SEAL, O -R IN G
5 - SEAL, O -R IN G
6 - S P R IN G , FLO W C O N T R O L
7 - M A G N E T
8 - H O U S IN G ASM , P U M P
10 - SEAL, O -R IN G (H O U S IN G )
11 - SEAL, D R IV E S H A FT
1 2 -S H A F T , D R IV E
1 3 - PIN, D O W EL
1 5 - PLATE, T H R U S T
1 6 - R O T O R , PU M P

DRIVE SHAFT SEAL REPLACEMENT

Figures 1 thru 3
Tool Required:
J 22670 Shaft Oil Seal Installer
Remove or Disconnect
Power steering pump from vehicle. Refer to "Power
Steering Pump Replacement" in section 3B.
Disassemble
*
Protect drive shaft (12) with shim stock.
Seal (11) by cutting with a chisel.
Assemble
*
Lubricate seal (11) with power steering fluid.
Seal (11) using J 22670.
Install or Connect
Power steering pump. Refer to "Power Steering
Pump Replacement" in section 3B.

PUMP RESERVOIR REPLACEMENT

Figure 1
Remove or Disconnect
Power steering pump from vehicle. Refer to "Power
Steering Pump Replacement" in section 3B.
Key No.
17 - RING, SHA FT R E T A IN IN G
1 8 - VANE, PUM P
20 - RING , PUM P
21 - PLATE, P R E S S U R E
22 - S PR IN G , P R E S S U R E PLATE
23 - PLATE, END
25 - RING, END PLATE R E T A IN IN G
33 - FITTIN G ASM (C O N N E C T O R &)
35 - SEAL, O -R IN G
36 - BOLT, PUM P M O U N T IN G
37 - R E S E R V O IR ASM
38 - CAP ASM, R E S E R V O IR
40 - SEAL, O -R IN G (H O U S IN G T O S T U D )
Figure 2 P Series Power Steering Pum p-Legend
1.
2
3.
4.
5.
6
11-SEAL, DR IVE SHAFT
12-SHAFT, DRIVE
Part Name
Disassemble
Drain power steering fluid from pump.
Bolts (36).
Fitting (33) and O-ring seal (35).
.
Control valve assembly (2) and flow control spring
(6) from housing (8) if replacement is required.
Reservoir (37) from housing (8).
O-ring seals (1, 10, and 40).
Magnet (7).
.
Clean
Magnet (7).
Inspect
Welch plug in housing (8). Do not remove.
If plug is deformed or dislodged, replace
housing (8).
A-CHISEL
B-SHIM STO C K