Pitman Shaft Seal Replacement - GMC G Service Manual

3B3-14 POWER STEERING
17. Adjusting Screw Jam Nut
21. Side Cover
70. Mounting Bolt
73. Adjusting Screw
74. Pinch Bolt
75. Steering Shaft
76. Coupling Nut
77. Spring Washer
78. Coupling Flange
79. Coupling
80. Side Cover Bolt
81. Spacer
H Q Tighten
• Bolts to "Specifications" at the end of this
section.
2. Intermediate shaft pinch bolt.
H Q Tighten
• Pinch bolt to "Specifications" at the end of this
section. The pinch bolt must pass through
the shaft undercut.
3. Pitman arm. Refer to STEERING LINKAGE (SEC.
3B1).
• Remove the plugs and caps from the steering gear
and hoses.
Hoses to the steering gear.
4.
H Q Tighten
• Hose fittings to "Specifications" at the end of
this section.
PITMAN SHAFT SEAL
REPLACEMENT
H Remove or Disconnect
• Mark the position of the pitman arm to the pitman
shaft. Remove the pitman arm. Refer to STEERING
LINKAGE (SEC. 3B1).
• Position a drain pan under the steering gear.
1. Retaining ring using internal snap ring pliers with
large (.070-inch), straight tips.
• Start the engine and turn the steering wheel to the full
left turn position for one or two seconds at a time. This
will force the pitman shaft seals and washers out of
the housing.
• Turn the engine off.
Figure 9 — Steering Gear Installation — V-Model
2. Pitman shaft seals and washers from the pitman
shaft.
| y | Inspect
• Pitman shaft seal surfaces for roughness or pitting. If
pitted, replace the shaft.
• Housing for burrs. Remove the burrs before installing
the new seals.
K lH Clean
• Pitman shaft and seal areas using a crocus cloth.
M Install or Connect
Tools Required:
J 6219 Steering Gear Pitman Shaft Oil Seal
Installer.
• Lubricate the new seals with power steering fluid.
Refer to MAINTENANCE AND LUBRICATION (SEC.
OB).
• Apply a single layer of tape to the pitman arm shaft to
avoid damaging the seals.
1. Single lip seal and washer using J 6219 (figure 14).
Install far enough to provide clearance for the remain­
ing seal, washer and retaining ring. DO NOT allow the
seal to bottom on the end of the counter bore.
2. Double lip seal and washer using J 6219 (figure 14).
3. Retaining ring.
4. Pitman arm. Refer to STEERING LINKAGE (SEC.
3B1).
F-02622