Chevrolet 10 series 1973, Overhaul Manual

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A U T O M A T IC T R A N S M IS S IO N 7 A -83
RETAINING PIN
BORE PLUG
PRESSURE REGULATOR VALVE-
PRESSURE REGULATOR SPACER
SPRING RETAINER WASHER-,
PRESSURE REGULATOR SPRING
PUMP COVER
THRUST WASHER
PRESSURE BOOST VALVE
PUMP OIL SEAL RING -
(CAST IRON)
TEFLON OIL SEAL RING
PRESSURE BOOST BUSHING
SNAP RING
Fig. 59T~Pump Cover-Exploded View
2. Place pump gears in pump body and check pump
body face to gear face clearance (should be
.0 0 0 8 " -
.0 0 3 5 ")( fig . 6 5 T ).
3. Check face of pump body for scores or nicks.
4. Check oil passages (fig. 57T).
5. Check for damaged cover bolt attaching threads.
6. Check for overall flatness of pump body face.
7. Check bushing for scores or nicks. If replacement is
necessary, proceed as follows:
a. Using Tool J-21465-17 and driver Handle J-8092
remove bushing.
b. From front side of pump, using J-21465-17 and
driver Handle J-8092 install new bushing flush
to .010" below gear pocket face.
Fig. 60T-Rem oving Pump Regulator Valve Snap Ring
8. Inspect pump attaching bolt seals for damage,
replace if necessary.
9. Inspect pump cover face for overall flatness.
P U M P A S S E M B L Y
S N A P R IN G
R E G U L A T O R B O O S T V A L V E
B U S H IN G A N D V A L V E
R E G U L A T O R S P R IN G
OVERHAUL MANUAL