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19-30
STEERING
FLOW CONTROL VALVE
(1) With the pump reservoir removed, remove the
flow control valve end plug retaining ring and end
plug that is nearest the discharge fitting on the
pump (Fig. 11).
(2)
Depress the control valve against spring pres-
sure and allow it to spring back. The valve should pop
out of the bore to a point where it can be removed.
If
the valve should stick,
do not force it,
but repeat
the spring back procedure several times.
NOTE: Gum deposits will cause the control valve to
stick in one position and it will be necessary to
break the valve free by light tapping and repeat
step
2.
If the control valve and bore were fouled by gum-
ming, foreign material, or burrs, the valve and valve
bore should be thoroughly cleaned and flushed and
reassembled.
NOTE: Inspect the flow control valve and valve
bore.
If
the valve or valve bore in pump body are
badly scored, replace the pump assembly less pul-
ley and reservoir.
(3)
Install the control valve spring, seating the
spring in the spring socket.
(4)
Remove any burrs with a fine hone or crocus
cloth but
Do Not
round the valve land corners.
(5) Lubricate with power steering fluid Part Num-
ber
2084329,
and install the control valve over the
control valve spring and into the bore. When all valve
lands have cleared the retaining ring groove area,
work the control valve back and forth against spring
pressure until the valve operates smooth and free.
(6) Install a new
"0"
ring on the end plug.
(7)
Lubricate the end plug and "0" ring and install
the end plug with the machined projection
out.
(8)
Install the plug retainer ring with the sharp edge
SPANNER NUT
'KS
c:
\
Fig. 13-Removing
the Spanner Nut
of ring
up.
(9)
Install the relief valve if removed.
(10) Install the pulley (Fig. 8 ) .
(11) Install a new pump body
"0"
ring, new reser-
voir gasket and reservoir and brackets.
Fig. 12-Center
Punch Marks on the
Pump Body, Spanner Nut and Front Insert
63x670
Fig. 14-Removing
the Shaft, Rotor and
Front Insert
63x674
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