Chevrolet 1977 10 Series, Repair Manual, Page: 238 / 468

(200)7A-2
OVERHAUL MANUAL
O IL SCREEN
M A N U A L D E T E N T
RO LLE R & SPRING
ASSEM BLY
Fig. 7 A - 3 A ~ R e m o v in g Oil Screen
Snap Rings
Do not over expand snap rings when removing or
installing.
Thrust Washer Surfaces
The thrust washers and thrust bearings will polish the
surfaces they protect. This is not to be considered a damaged
part because of this condition.
EXTERNAL PARTS - REMOVAL
1. Remove oil pan and discard gasket.
2. Remove oil screen and discard gasket (Fig. 7A-3A).
CAUTION: The two oil screen attaching bolts are
about 10mm (3/8") longer than the control valve
assembly attaching bolts, and they are not
interchangeable.
3. Control Valve Assembly:
a. Remove throttle lever and bracket assembly (Fig.
7A-4A). Do not bend throttle lever link.
NOTE:
T.V. exhaust valve lifter and spring may
separate from throttle lever and bracket assembly.
b. Remove manual detent roller and spring assembly
(Fig. 7A-5A).
c. Remove remaining control valve assembly attaching
bolts.
Fig. 7 A -5 A ~ R e m o v in g M a n u a l De te n t Rolle r and Sp rin g
A s s e m b ly
CAUTION: Do not drop manual valve.
d. H olding m anual valve with finger, remove control
valve assembly, spacer plate, and gaskets together, to
prevent the dropping of 4 check balls, located in the control
valve assembly (Fig. 7A-6A).
e. Lay control valve assembly down with spacer plate
side up and discard gaskets.
4. Remove 1-2 accum ulator spring (Fig. 7A-7A).
5. Remove 5th check ball located in case (Fig. 7A-8A).
6. G overnor Assembly:
a. Using small screwdriver, remove governor cover
retaining ring (Fig. 7A-9A).
b. Using pliers, remove governor cover and discard 2
seal rings; seal rings may be located in case (Fig. 7A-10A).
NOTE:
G overnor assembly may come out with cover.
CAUTION: Do not use any type o f pliers to
remove governor assembly.
c. Remove governor assembly from case. It may be
necessary to rotate output shaft counterclockwise while
removing the governor.
7. Interm ediate Servo Assembly:
a.
Using small screwdriver, remove interm ediate servo
cover retaining ring (Fig. 7A -11 A).
T .V . E X H A U S T V A L V E L IF T E R
T H R O T T L E LEVER &
B R ACK ET ASSEMBLY
T H R O T T L E LEVER TO
CABLE L IN K
C O N TR O L V A L V E ASSY
M A N U A L V A L V E
V A L V E BODY
SPACER PLATE
Fig. 7A-4A--Removing Throttle Valve and Bracket Assembly
Fig. 7A-6A~Removing Control Valve Assembly from Case