Cadillac 60 Series 1963 Shop Manual page 255

10-20
FUEL AND EXHAUST
i. Float Alignment—Secondary
Side (Fig. 10-22)
1. Hold Float Level Gage, J-7714-1, over floats
at heel.
2. Center gage in bowl cover; each float should
be centered in gage.
3. If adjustment is necessary, bend float arm
horizontally to center float in gage.
4. Slide float assembly from side to side on
hinge pin to make sure floats do not touch gage.
k. Float Drop Adjustment—Secondary
Side (Fig. 10-24)
1. Hold bowl cover so floats are hanging down.
Bounce floats lightly before measuring distance.
2. Measure distance from gasket to center of
dimple on side of float at toe, using 1-5/16 inch
Gage, J-7714-3.
3. If adjustment is necessary, bend tang at rear
of float arm away from balance spring to increase
drop or toward spring to lessen drop.
I. Bowl Cover Installation
1. Holding bowl cover assembly in upright po-
sition, carefully lower into bowl in such a manner
as not to press against floats with hand while
installing.
2. Install three inner bowl cover screws with
lock washers and tighten; then secure remaining
ten bowl cover screws. Install identification tag
at corner screw above idle by-pass screw.
NOTE: If car is equipped with Air Con-
ditioner, install idle speed-up control to bowl
cover on choke side, using three longer screws.
One of the longer screws is also an inner
bowl cover screw.
Gasket
Secondary Floats
V
1-5/16" Gage
J-7714-3
3. Place choke rod with choke counterweight
lever on choke shaft, with collar inward and tang
pointing outward and toward secondary side of
carburetor, Fig. 10-25.
4. Install choke trip lever with letters " R P "
facing outward and with lever projecting above
tang on choke lever. Install retaining screw.
5. Install pump rod into accelerator pump lever.
Secure rod with clip.
m. Accelerator Pump Rod Adjustment
(Fig. 10-25)
1. If carburetor is mounted on engine, dis-
connect throttle rod so that throttle check will
not keep throttle valves from closing, and manu-
ally open wide choke valve so that throttle valves
will close in their bores.
2. Hold throttle in the full closed position and
carefully place Gage, J-7714-4, on bowl cover
with side marked "pump" closest to pump lever.
3. With throttle closed and gage resting on
top of bowl cover, pump plunger rod should
enter hole in gage freely.
4. To adjust, bend pump rod at upper angle
until pump rod will enter gage freely. Correct
dimension for pump rod adjustment is 27/32 inch
from top of bowl cover casting to bottom of pump
plunger rod.
n. Fast Idle Adjustment
(Fig. 10-26)
1. Invert carburetor on workbench with fast
idle adjusting screw on the second highest step
Gage J-7714-4
Pump
Plunger
Rod
Fast Idle Screw
Fig. 10-24 Float Drop Adjustment - Secondary
Fig. 10-25 Accelerator Pump Adjustment