Pontiac FIREBIRD 1972 Service Manual page 703

ENGINE FUEL 6B-49
FLOAT DROP ADJUSTMENT (Fig. 6B-66)
I
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AIR HORN RIGHT SIDE UP TO ALLOW
FLOAT TO HANG FREE
FROM GASKET SURFACE TO
NOTCH AT TOE OF FLOAT
FOR PROPER SET
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NEEDLE MUST NOT WEDGE
AT MAXIMUM DROP
Fig. 6 8 - 6 6 Float Drop Adjustment
hanger assembly, then install float assembly on air
horn and insert hinge pin.
8. Check float level and drop adjustments.
ASSEMBLE AIR HORN TO FLOAT BOWL
1. Place cover on bowl, making certain that the acceler-
ator pump plunger is correctly positioned into pump
well and will move freely.
2. Install and tighten eight cover screws evenly and se-
curely (Fig. 6B-67).
3. Install inlet filter, pressure relief spring and tighten
nut to 25 lb. ft.
4. Install pump rod into upper pump lever by rotating
off-set end into hole in lever and install lower end of
pump rod to throttle lever and retain with spring clip.
5. Install vacuum break diaphragm assembly on to air
horn with two screws. Tighten securely.
6. Install vacuum break link into diaphragm plunger
and choke coil lever. Install choke coil lever to end
of choke shaft. Install retaining screw and tighten
securely.
Install fast idle cam to float bowl, using the fast idle cam
attaching screw. Tighten securely.
Connect vacuum hose at throttle body and at vacuum
break unit.
Check choke rod adjustment.
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Fig. 6 8 - 6 7 Air Horn Tightening Sequence