Chevrolet 1977 light duty truck, Service Manual

Page: 564 / 861

PLACE SPECIFIED
G A U G E B E T W E E N W A L L
A N D UPPER EDGE OF
CH O K E V A L V E
-----
B E N D C H O KE ROD
T O O B T A IN
G A U G E D IM E N S IO N
O P E N IN G
P O S IT IO N C A M
FO LLO W E R O N
S E C O N D STEP
O F C A M
( 4
)
RECHECK F A S T IDLE A D J U S T M E N T
CHOKE ROD (FAST IDLE CAM) ADJUSTMENT — 4MV
( 3 J P L A C E G A U G E B E T W E E N R O D
A N D E N D O F S L O T I N L E V E R
T ) A I R V A L V E
C O M P L E T E L Y C L O S E D
U
1 ) S E A T C H O K E V A C U U M
- ^ D I A P H R A G M U S E O U T S ID E
V A C U U M S O U R C E
4 j B E N D H E R E F O R S P E C IF I E D
— 'C L E A R A N C E B E T W E E N R O D (
A N D E N D O F S L O T I N L E V E R
N O T E :
P L U G P U R G E
B L E E D H O L E
W IT H T A P E
( W H E R E U S E D ) .
R E M O V E A F T E R
A D J U S T M E N T
AIR VALVE ROD ADJUSTMENTS — M4MC/M4ME
A IR V A L V E S M U S T BE
C O M P L E T E L Y C L O S E D
B E N D R O D H E R E
T O O B T A IN S P E C IF IE D
C L E A R A N C E B E T W E E N
R O D A N D E N D OF S L O T
IN LE V E R
SEAT DIAPHRAGM
U S IN G OUTSIDE
V A C U U M SOURCE
PLACE .015 GUAGE BETWEEN
ROD A N D END OF SLOT
IN LEVER
AIR VALVE ROD ADJUSTMENT — 4MV
CARB. NO .
PLU G
G A U G E
7045583
7045585
7045586
17056212
17056217
A L L
OTHERS
.2 9 0
.220
A N G L E
4 2 °
CARB. NO .
PLU G G A U G E
ALL
. 0 1 5 "