Pump Rod Adjustment; Float Drop Adjustment; Air Horn Tightening Sequence; Fast Idle Cam Installed - Pontiac Grand Prix Service Manual

Fig. 68-39 Float Drop Adjustment
1. Install power piston in vacuum cavity; piston should
travel freely in cavity. Stake vacuum piston retainer
washer.
2. Place cover on bowl, making certain that accelerator
pump plunger is correctly positioned and will move
freely.
3. Install and tighten eight cover screws evenly and
securely.
4. Install inlet filter, pressure relief spring and tighten
nut to 25 lb. ft.
5. Install pump link and retainer.
6. Check pump rod adjustment.
Fig. 6 8 4 0 Air Horn Tightening Sequence
Fig. 6 8 4 1 Pump Rod Adjustment
PUMP ROD ADJUSTMENT (Fig. 68-41)
Place tool on top of cleaner mounting ring as shown.
Then with throttle valves fully c l o d , the top surface
of pump rod should just touch the end of gauge.
Measurement should be 1 1 1 /32". Bend pump rod to
adjust.
1. Install fast idle
link
and fast idle
cam
as an
assembly and install fast idle lever on other end of fast
idle link. Place fast idle lever on choke shah with the
tang facing outward and toward the pump lever.
Install trip lever so that tang of trip lever is under tang
of choke lever, and install retaining screw (Fig. 6B-42).
2. Connect vacuum hose at flange, and at vacuum
break unit.
3. Check choke rod adjustment.
I
THROTTLE LEVER
.Iybi7
FAST I D ~ E SCREW
Fig. 6 8 4 2 ~ a s t l d l e Cam Installed