Chevrolet Chevelle 1967 Overhaul Manual page 97

CARBURETORS 6M-5
BEND FLOAT
T A N G TO
ADJUST
GAUGE FROM GASKET
SURFACE TO BOTTOM OF FLOAT
Fig. 6R—Installing Pump Discharge Ball
6.
Index end of pump discharge guide into bronze color
spring and press down until guide is flush with bowl
surface.
Assemble Air Horn
1. Place new gasket on air horn.
2. Place power piston spring and power piston in air
horn cavity and attach main well support to air horn.
3. Install main metering jet and tighten securely.
4. Hold power piston stem down and install power ball,
spring and plug and tighten securely.
5. Install spring and bronze fuel filter with opening
away from spring and attach fuel line fitting with
gasket.
Install vacuum diaphragm, two bracket screws and
choke valve lever.
Install float needle seat using new gasket and install
float needle.
Attach float with hinge pin.
Adjust Float
1. With the air horn inverted and the gasket in place,
check height of each float as shown. Bend tang
6.
8,
Fig. 8R—Float Drop Adjustment
which contacts needle until each pontoon is set to
specified dimension. Align floats to avoid inter-
ference in bowl (fig. 7R).
2. With the air horn assembly held upright and floats
suspended freely, carefully bend the float tang at the
rear of the float arm so that the bottom of the float
pontoon is set as specified (fig. 8R).
Assemble Air Horn to Bowl
1. Carefully place air horn assembly on bowl, making
certain the main channel male centering protrusion
GAUGE FROM GASKET
SURFACE TO TOP OF FLOAT
BEND ROD
TO ADJUST
SCREW O N
SECOND STEP
AGAINST HIGH
STEP OF CAM
SPECIFIED GAUGE
BETWEEN BOTTOM
EDGE OF CHOKE
VALVE AND AIR
HORN WALL.
Fig. 7R—Float Level Adjustment
Fig. 9R—Choke Rod (Fast Idle) Adjustment
CHEVROLET CHASSIS OVERHAUL MANUAL