Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 201 / 468

CARBURETOR 6C-7
lever link into notched hole in choke coil lever on choke
housing. Then carefully twist and lower air horn onto float
bowl. Install three long and one short air horn to float bowl
attaching screws and lockwashers (Fig. 6C-16).
3. Install the choke vacuum break diaphragm assembly
using two short air horn screws opposite the choke housing,
connecting the choke vacuum break diaphragm link to
slotted diaphragm plunger stem. The two attaching screws
for the choke vacuum break assembly have tapered heads for
locating choke diaphragm bracket. Make sure to use these
in this location. Tighten all air horn screws evenly and
securely using proper tightening sequence (Fig. 6C-17).
4. If removed, install choke housing to float bowl using
three attaching screws. Two screws have lockwashers and the
other one which face the choke housing has a tapered head
for locating choke housing.
5. Install fast idle cam, and fast idle cam link to upper
choke lever assembly. N um bers on fast idle cam face
outward.
6. Install electric choke coil assembly on choke housing.
Install three retainers and attaching screws. A djust using
choke coil adjustm ent procedure.
CAUTION:
Do not use a gasket between electric
coil and housing, as the coil is electrically grounded
through housing.
7. Install choke vacuum diaphragm hose to tube on
diaphragm and connect to vacuum tube on bowl.
N O TE: Refer to Service M anual for the remaining
adjustments.
MODEL 2G C /2G V CARBURETOR
DISASSEMBLY
Place carburetor on a holding fixture to prevent damage
to throttle plates (Figs. 6C-18 and 19).
Solenoid Assembly (If Used)
CAUTION:
The electrically operated solenoid
should be removed from the float bowl for complete
carburetor disassembly and should not be immersed
in any type o f carburetor cleaner.
To remove the solenoid assembly, bend back the
retaining tabs on lockwasher; then remove large nut which
retains the stop solenoid to the carburetor bracket. It is not
necessary to remove the bracket from the float bowl assembly
unless replacem ent of the bracket is necessary.
Air Horn
1. Remove fuel inlet filter nut and gasket, and remove
filter and spring.
2. Disconnect lower end of pum p rod from throttle lever
by removing spring clip (Fig. 6C-20).
3. Remove upper end of pum p rod from pum p lever by
rotating rod out of hole in lever (Fig. 6C-21).
4. Remove the vacuum break diaphragm hose from tube
on throttle body and tube on vacuum break diaphragm unit.
Then remove the vacuum break diaphragm assembly from
air horn by removing two attaching screws. Remove
diaphragm and link assembly from lever on end of choke
shaft.
5. Remove vacuum break lever from end of choke shaft
by removing retaining screw in end of shaft (Fig. 6C-22).
Then, remove the interm ediate choke rod from the vacuum
break lever and from the lever on the therm ostatic coil
housing (Fig. 6C-23).
6. Remove fast idle cam attaching screw from side of
float bowl (Fig. 6C-23).
Remove fast idle cam from end of choke rod by rotating
Fig. 6C-1 8--Model 2GC Carburetor
Fig. 6 C -1 9 -M o d e l 2GV C arburetor