Cleaning & Inspection Procedure - Pontiac Grand Prix Service Manual

E N G I N E FUEL 6B-3 1
CLEANING AND INSPECTION
4.
Examine float needle and seat for wear.
NOTE: The carburetor should be cleaned in a
Replace if necessary with new float needle
cold immersion type cleaner. assembly.
1. Thoroughly clean carburetor castings and 5. Inspect upper and lower surfaces of car-
metal parts in an approved carburetor cleaner buretor castings for damage.
.such as karbon-x (X-55) or its equivalent.
6. Inspect holes in levers for excessive wear
CAUTION: Any rubber parts, plastic parts, or out-of-round conditions. If worn, levers
diaphragms, pump plungers,. should not be im-
should be replaced.
mersed in carburetor cleaner. However, the
delrin cam on the air valve shaft will with- 7. Examine fast idle cam for wear or damage.
stand normal cleaning in carburetor cleaner.
8. Check air valve for binding conditions. If
2. Blow out all passages in castings with com- air valve is damaged, air horn assembly must be
pressed air. Do not pass drills through jets or
replaced.
passages.
9. Check all throttle levers and valves for
3. Inspect idle mixture needles for damage.
binds or other damage.
Fig. 6B-58 Cleaning & Inspection Procedure
-
AUGE FROM TOP O F
FIRMLY I N CASTING TO TOP O F
FLOAT AT TOE
.
( 9 1 3 2 V - 8 ) ( 3 1 1 6 " - 6 CYL.)
A G A I N S T N E E D L E
REMOVE FLOAT A N D BEND FLOAT
ARM UP OR D O W N TO ADJUST
VISUALLY CHECK FLOAT
ALIGNMENT AFTER ADJUSTING
Fig. 6B-59 Float Level Adjustment