Hudson 1955 Rambler, Technical & Service Manual

Page: 240 / 292

The large outer bearing is installed on
the threaded end of the shaft with the
stamped face of inner race to the front.
Install inner bearing and shaft oil
seal; press on the outer edge of the seal
only.
NOTE:
A protective sleeve is installed
in the oil seal. Remove after the seal
is installed.
Apply "AQ-ATF" type "A" fluid to the oil
seal and assemble the shaft into the pump
body using care as shaft is a light press
fit in the inner bearing. Install snap
ring.
Install "0" ring in groove of pump body
and the two dowel pins in the pump body.
The rotor is installed on the splined end
of the shaft and the twelve vanes assem-
bled in the rotor with the radius edges
toward the outer edge of the rotor.
Assemble the rotor ring on the dowel
pins aligning the location marks.
NOTE:
Prelubricate rotor parts with "AQ.
ATF" type "A" fluid when assembling.
Install the pressure plate on the dowel
pins, (small arrow on pressure plate on
the top) the "0" ring in pump cover,
control valve spring and control valve in
front face of pump cover.
Attach the pump cover, tightening the
cover screws 25 to 30 foot pounds torque
and the oil manifold to the pump assembly
tightening the screws 12 to 15 foot pounds
torque.
Reassemble reservoir on oil manifold.
Reassemble the pump on the engine.
Adjust the belt tension so that belt will
not deflect more than 1/4" midway between
the power steering pump and the water pump
pulleys.
Loosen the hose connections at the
control valve and fill the hoses to remove
all air.
Fill the reservoir prior to connecting
the hoses to permit filling the pump to
eliminate air.
Start the engine and operate for approx-
imately ten minutes to bleed air from the
system.
CAUTION: Do not turn steering wheels
during this initial ten minute period.
Check and refill reservoir. Inspect
system for external leaks.
NOTE: Air bubbles circulating through
the pump will result in noise. Normal-
ly, three or four days operation is
required to dissipate the air bubbles
from the system. This condition is
best prevented by careful bleeding at
time of reassembly.
Oil Pressure Check
Inspect the reservoir for correct fluid
level; if low, fill to the proper level
with Hydra-Matic Transmission fluid type
"A".
Inspect all hoses and connections for
evidence of external leakage.
Install oil pressure gauge J-5548 in the
main oil line at the control valve
assembly. Start the engine and allow the
oil to circulate for several minutes to
warm the oil.
Turn the wheels against the curbing or
other obstacle and hold tension on the
wheel. Note the oil pressure. It should
be 650 to 900 P.S.I. on the "Hornet" V-8
Series, and 500 to 800 P.S.I. on the
"Hornet" 6 and "Wasp" Series. Turn the
wheel in the opposite direction and note
the reading. If there is a variation
between the left and right turns, internal
leakage is evident. If the pressure is
low, stop the engine and disconnect the
gauge from the cylinder and valve assembly
and cap the pressure line.
Restart the engine and note the reading;
if it is 650 to 900 P.S.I. "Hornet" V-8
Series, or 500 to 800 P.S.I. "Hornet" 6
and "Wasp" Series, the pump is operating
properly. If the pressure is low, the pump
belt or fan belt may be slipping. With the
belt tension correct and there is low
pressure, the trouble exists in the pump.
NOTE: Do not run the last check for
a period longer than is necessary to
obtain a steady pressure reading.
18 TECHNICAL SERVICE MANUAL
POWER STEERING DIAGNOSIS GUIDE
CONDITION CAUSE CORRECTIONS
Hard Steering or Lack of
Sufflcient Power Assistance
or Poor Recovery from Turns Bent Piston Rod
Low Oil Pump Pressure
Insufficient Oil Flow in System
Internal Leak in Control Valve
Replace Piston Rod
Inspect Pump Operation and
Correct
Inspect Pump Flow Control Valve;
Inspect Oil Hoses for Restriction
Disassemble Control Valve
Inspect and Correct