2A – 30 POWER STEERING
Vane
Sliding faces of the vane should be free from wear.
(Particularly the curved face at the tip in contact with the
cam should be free from wear and distortion).
When part replacement becomes necessary, the pump
cartridge should be replaced as a subassembly.
Cam
The inner face of the arm should have a uniform contact
pattern without a sign of step wear.
When part replacement becomes necessary, the pump
cartridge should be replaced as a subassembly.
Side plate
The sliding faces of parts must be free from step wear
(more than 0.01 mm), which can be felt by the finger nail.
The parts with minor scores may be reused after lapping
the face.
Valve
The sliding face of the valve must be free from burrs and
damage.
The parts with minor scores may be reused after
smoothing with emery cloth (#800 or finer).
Shaft
Oil seal sliding faces must be free from a step wear which
can be felt by the finger nail.
Bushing face must be free from damage and wear.
O-ring, oil seal, retaining ring
Be sure to discard used parts, and always use new parts
for installation. Prior to installation, lubricate all seals and
rings with power steering fluid.
REASSEMBLY
27. Rear Housing
26. Pin
25. Cam
24. Rotor and Vane
1. Install the rotor with its punch mark facing the front
housing.
2. Install the vanes with curved face in contact with
the inner wall of the cam.