Acura RL (1996-2004 year). Manual — part 481
3. Loosen the flow control valve cap with a hex wrench
and remove it.
4. Remove the O-ring, flow control valve and spring.
5. Remove the inlet joint and O-ring.
6. Remove the pump cover and pump cover seal.
7. Remove the outer side plate, pump cam ring, pump
rotor, pump vanes, side plate and O-rings.
8. Remove the snap ring, then remove the pump drive
shaft by tapping the shaft end with the plastic ham-
mer.
9. Remove the pump seal spacer and pump seal.
Disassembly (cont'd)
1. Drain the fluid from the pump.
2. Hold the steering pump in a vise with soft jaws,
hold the pulley with the special tool, and remove
the pulley nut and pulley.
CAUTION: Be careful not to damage the pump hous-
ing with the jaws of the vise.
UNIVERSAL HOLDER
Power Steering Pump
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Power Steering Pump
Inspection
Flow Control Valve:
1. Check the flow control valve for wear, burrs, and other
damage to the edges of the grooves in the valve.
2. Inspect the bore and the flow control valve for
scratches and wear.
3. Slip the valve back in the pump, and check that it
moves in and out smoothly.
If OK, go to step 4; if not, replace the pump as an
assembly. The flow control valve is not available
separately.
4. Attach a hose to the end of the valve as shown.
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5. Submerge the valve in a container of power steering
fluid or solvent, and blow in the hose. If air bubbles
leak through the valve at less than 98 kPa
(1.0 kgf/cm
2
,14.2 psi), repair it as follows.
6. Hold the bottom end of the valve with a open end
wrench.
7. Unscrew the seat in the top end of the valve, and
remove any shims, the relief check ball, relief valve
and relief valve spring.
8. Clean all the parts in solvent, dry them off, then
reassemble and retest the valve. If the flow control
valve tests OK, reinstall it in the pump. If the flow con-
trol valve still leaks air, replace the pump as an assem-
bly. The flow control valve is not available separately.
NOTE: If necessary, relief pressure is adjusted at
the factory by adding shims under the check ball
seat. If you found shims in your valve, be sure you
reinstall as many as you took out.
3. Install the new ball bearing using a press as shown.
2. Remove and discard the ball bearing using a press
as shown.
Ball Bearing Inspection/Replacement:
1. Inspect the ball bearing by rotating the outer race
slowly. If you feel any play (axial or radial) or rough-
ness is felt, replace the ball bearing.
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Power Steering Pump
Reassembly
1. Install the new pump seal in the pump housing by
hand, then install the pump seal spacer.
NOTE: Insert the pump seal with its grooved side
facing in.
ATTACHMENT, 30 mm
6. Set the pump cam ring over the two rollers with the
" ° " mark on the cam ring downward.
7. Assemble pump rotor to the pump cover.
8. Set the 10 vanes in the grooves in the rotor.
NOTE: Be sure that the round ends of the vanes are
in contact with the sliding surface of the cam ring.
2. Position the pump drive shaft in the pump housing,
then drive it in using a special tool as shown.
3. Install the 40 mm snap ring with its radiused side
facing out.
4. Coat the pump cover seal and the cover bushing
with the power steering fluid, then install the pump
cover seal into the groove in the pump cover.
5. Install the outer side plate over the two rollers.
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