Chevrolet 1977 10 Series, Repair Manual, Page: 268 / 468

(200)7A-32
OVERHAUL MANUAL
J-25016
PUMP BODY
SEAL
Fig. 7 A - 1 3 1 A - l n s t a l l i n g Seal Into Pum p B o d y
Fig. 7 A-1 3 4 A - -C h e c k in g Pum p B o d y-to-G e a r End Cle arance
Fig. 7 A - 13 2 A - - ln s t a llin g Pum p Driven Gear
Pump Cover
Inspection
1. Inspect for open oil passages (Figs. 7A-135A and
7A-136A).
2. Inspect seven (7) cup plugs. If a plug is missing, drive
a new cup plug to ,79mm (1 /3 2 ") below top of hole, using
a 7.14mm (9 /3 2 ") diam eter rod on the smaller plugs and
a 7.92mm (5 /1 6 ") diam eter rod on the larger plugs. Stake
top of hole two places, directly opposite each other, to retain
plug.
3. Inspect pum p cover face for nicks and overall
flatness.
4. Inspect for chips in pressure regulator bore.
PUMP DRIVEN GEAR
(IDENTIFICATION
PUMP BODY R E V E R S E
P U M P C O V E R
V O I D
C O N V E R T E R
F E E D
C O N V E R T E R
T O C O O L E R
B L E E D
F R O M
C O O L E R
T O LU BE
D I R E C T
C L U T C H
L I N E
B O O S T
P U M P
I N T A K E
3 R D / R E V E R S E
D R I V E
O I L P R E S S U R E
C O N T R O L
O R I F I C E
S E A L D R A I N
B A C K H O L E
L I N E
Fig. 7 A - 1 3 5 A - P u m p Co ver A s s e m b ly
LUBE
D IR E C T
CLUTCH
REVERSE
LUBE
HOLE
Fig. 7 A - 1 3 3 A -P u m p Driven Gear Identification
Fig. 7A-1 36A~Pum p Cover Oil Passages