delco carb adjustments
TRANSCRIPT
GAYGS F R O M TOPOF CASTING TO TOP O i r r o A r - C I U C I N G P O M i 3 1 1 8 BACK
CilUDiNG POINT ,1:!6 BACL PROM TOE,
t G * T L " A C A N S I NEEDLE
@ nEMOVEFLO&T AND BENO FLOAT A R M UP OR OOWN 47 NOTCH TO L O I Y S T
O 0 ° C . CII IB"I1ETOIB l i r L O l T L E V E L Y A R l i S O Y E 9 f 1 1 1 6 FROM SPEClFlCATIONB, l D d U I T F L 0 A T AS FOLLOWS
LEVEL TO0 MIOH HOLD IIETAINER FlRULY IN PLbCE I a AN0 @ 1 ANDPUS* DOWN ON CENTE' IO IFLOAiPONTOON10OBTAlnCO~SECTSETi lNG
LEYELTOOLOW L l F T o Y T METERING RODS REMOVE BDLENOlDCONHECIORSCREW. TURN LEAN MIXTURE SOLENOLO SCREW C L o C I W l e L COUNTING NUMBER OF TURNS UNi lL SCREW IS BOTTOMED LIGHTLY I* FLoiiT BOWL R E C O W DUMBER Rol TURNS COUNTED TUANSCmLW COUNTERCLOCKWISE A N D REMOVE SCREW LiFTSOLENOiD AWDCOHWLCTORF~~OM~LO~TBOWL R ~ U O Y E F L O ~ ~ T A N O B E ~ D F L O A T A R M U P T O ADJUST VISUALLY CHECK FLOAT ALIOHMEWT L I T E R ADJUSTING. REVC'-' PROCEDURE TO R E - I N S T I L L PLRTS RLUOYED. MAKING SURE ESOLEHOIC SCREW 4s BACKED OUTOFFLOAT BOWL E X A C i l " THE SAUL NUMBER COUNTED AT D1S455EUSLI
FLOAT ADJUSTMENT (MECHANICIL SETTING)
- -
AIR HORN SCREH I mun I ZNING SEQUENCE (DUAL JET MODEL 200)
FIG. 2
Delco Carburetor BULLETIN: 9D4A RED SECTION
DATE MAY 1983 ADJUSTMENT PROCEDURES 2MC.M2MC.E2MC.M2ME.E2ME PAGE I
(DUAL JET) REPLACES PAGE 1
NOTE: PERFORM ADJUSTMENTS APRIL 1979
IN PROPER SEQUENCE
3
0 0
AIR HORN SCREW TIGHTENING SEQUENCE (DUAL JET MODEL 210)
FIG. 2A -
3 4
AIR HORN SCREW TIGHTENING SEQUENCE- DUALJET MODELS
FIG. 2B
0 C I U G . ?.OM TOSOF C*Ol. VAIVI WILL w x r TO vrnr I T A C " 10 TOP or ? " U P I T E M
L E V I * TO
OFSUMS L E Y I I
@."..o., LEV.. -8." S C I I I D I I V I I W* IL I BlhD1NC L I V E "
O w a o n ~ ~ vrtvrr C O H I L I T E L " CLYICD N O T l MLKl SY" FAST IIDU CAM FOLLOWlR LlYI"1JOFF S T r P I ON F A I T IDLE CAW
AP ADJUSTMENT
FIG. 3
BULLETIN: 9D.8A RED SECTION DATE: MAY 1983 PAGE: 2
HIGHEST STEP OF FAST lDLE CAM
IN TO CONTaCT LEVER THFN SCREW IN SPECIFIED NUMBER OF THROTTLEY*LVEJ*RE
TURNS TO ADJUSTISET NOTE1 CLOSED
FAST IDLE ADJUSTMENT (BENCH) FIG. 4
MOTE IF TIYWR-RES~STA~ CHOKE , m v r n D ] IS USED, IEYOVS CHORE COYER 4 N D C O I L A ~ Y B L I F O L L O W I N ( I IYIIRUCTIOWI bWCHOIES71TCOYER RETAIWERllT
THERMOSTATIC
OLOOS~NIHREE R C ~ N I W O SCREWS AND RSYOYIIHETIILRYOITATICCDYFR A m @PLACE 6AST #OLE CAM COlL A S I L Y I L I FROM C Y O l l HOUOING FOLLOWER ON WlOH STEP (SEE NOTE) OF FAST lDLE CAM
CHOKE COlL LEVER ADJUSTMENT
FIG. 5
@HIKE CHOIE CON LEVER AND FA- ~DLEADJUITYENT (BENCH ORON-TWS CAR OETTIIIG). NOT8 lF IAN-R-RESISTANT CHOKE (RIVETED1 IS USED. D O H O T R ~ I O Y C R I V E I I ANDCHOKECOVERTO PLIFORU 7HlS ADIU8TYEYI. USE RUBBER B1WD OW YACUUYBREAI ILEVEl7Al lGTOHOLDCWOIEVl lVECLDtED.
OW CHO1E COIL LEVER OR YICUUY @.EM LEVER TANG @ReUOYEGIUDs. IHOLO IN POSWION WITH RUBBER BAND).
CHOKE ROD (FAST IDLE CAM) RELATION ADJUSTMENT
FIG. 6
FAST IDLE CAM
C I M FOLLOWER CON0 STEP OF CAW
FAST IDLE CAM (CHOKE ROD) ADJUSTMENT
FIG. 7
* a.Cls"asrs Awo*L"e ELSE0
PUS" INI,DIC*OL.SO,, LEVER C 0 " " ~ ~ ~ ~ L O C X W,SS "WT,L,&WC ow OY.llOE ,EVER CONILCT. V.C""M n n n * R O O .UCKI ITSI .NT i.COU..ESS.D
VACUUM BREAK ADJUSTMENT (RICH SETTING)
FIG. 8
",""EST I n C Y Y U *PEAK ,Do
O S < A S , 8"LECfiM *orCoUsl /rsl B"CIIWT S P R # N S ,
VACUUM BREAK ADJUSTMENT (LEAN SETTING)
FIG. 9
Delco Carburetor BULLETIN: SD-8A
RED SECTION DATE MAY 1983
ADJUSTMENT PROCEDURES 2MC.M2MC-E2MC.M2ME.E2ME PAGE 3 (DUAL JET) REPLACES PAGE 3 APRIL 1979
VOTE PERFORM ADJUSTMENTS IN PROPER SEQUENCE
FIG. 10
U P P l l E D L I esC"DXI
GAUGE VllYl AND lNI iDE WALL or A l s "esN
FRONT VACUUM BREAK ADJUSTMENT PLUG GAUGE METHOD
FIG. 11
USINeVnCUUM SOURCE.
NOTSON DFLllMODELSWiTIl AIR BLEED.REM(IVERUBBlR COYER OVERMLTER ELEMENT AND PLUGSMALLBLEEDHOLE IN VACUUMTUBEWITHTAPE ON MODELS WlTH AIR BLEEDIN
RUBBER BAND
PLUNDER LlOHTLI CLOSE CHOKE BY
BUCIlNO PUSHINO UPWARD ON CHOKE
SPRINO C O I L LEVER OR VACUUM
BREAK LEVER TANG IHOLD IN POSITION WITH RUBBER
@TO ADJUST. BEND BAND). MAKE SURE PLUNGER CHOKE LINKUNTIL BUCKING SPRING (IF USED) BUBBLEISCENTERED P-2 IS COMPRESSED AND SEATED.
REAR V A C U U M BREAK ADJUSTMENT
FIG. 12
REAR VACUUM BREAK ADJUSTMENT PLUG GAUGE METHOD
FIG. 13
SETTING). NOTE: DONOTREMOVERIVETS IWOCHDXECOYERTOPERFORMTHlSADJUSTUENI "SERUBsERB&NDONVAC""MBRE*IILEVERT*NGTOHOLDCHOIEVILVE CLOSED (STEP 8 1
BUBBLE IS CENTERED.
@CLOSE CHOIE VALYE BY PUSHING UP ON T ~ N G ON VACUUM BREAK LEVER (HOLD IN POSlTlON WlTH RUBBER BAND)
UNLOADER ADJUSTMENT lTYPlCAll
FIG. 14 I
"OLD PRlMAR"
I UNLOADER ADJUSTMENT 1 I FIG. 15 I
BULLETIN: 9D.8A RED SECTION DATE: MAY 1983 PAGE: 4 I
O ALIONU*K w eovm m w SPE~SOED row o* *OU8I*0. NOTE: UAKE SURE COIL ncr up rwcn e w s COIL TANG - SEE TTMCAL V W - INSET "9 ..
LOO=" I M L E RETAWING S C W S (NOTE: TtOHTEY
INSET 8 2
JSTMEN' AUTOMATIC CHOKE COIL ADJl T FIG. 16
OPREPAREVEUIC~ FOR l t o u s T m N T s - SEE EMlSStON LABLL ON VEHICLE NOTE lUNlTlON TIMING SET PER LI IBEL -
TURN l O L i S P ~ ~ D S C R E W 10 BET CURBIDLE W E L O T O S P E C I F I C A T I O N S A ' C 0 1 6 i S C E LMISION LABEL)
I IDLE SPEED ADJUSTMENT FIG. 17 1
.E SPEED
O s o L e N o I D w E R G I z m A ' C COMPRESSOR LEAD DISCONNECTED AT A - C
@ PREPARCVEHICLE FOR IIDJUSTMeNTs
A TIRANSMIBSION IN DRIVE M T INNEUTRAL
CONNCCTION
@oPENTHRoTi lEsLIG*rLyToALLoW S O L E N ~ ~ D P L U N G E R T O ~ U I L V ~ X T ~ N D
iSEECMISSION L ~ B C L I
AIC ID1 -UP SOLENOID ADJUSTMENT
FIG. 18
O P O S ~ T ~ O N T R A N S M ~ S ~ ~ O N I N PARKOR NEUTRaL
VALVE TURN FAST IDLE SCREW TOOSTAIN SPECIFIED RPM ON EMISSION LABEL
DJUSTMENT [ON VEHICLE] FIG. 19
Delco EZl BULLETIN: 9D-8S
DATE: NOVEMBER 1977
Delco Carburetor PAGE: 1 FILE AFTER BULLETIN 9D-8A REPLACES PAGE 1 DATED NOVEMBER 1976
. .- ADJUSTMENT A N D TUNE UP SPECIFICATIONS
ADJUSTMENT SPECIFICATIONS
~ ~
REFER TO LABEL IN ENGINE COMPARTMENT FOR CORRECT
CO. WD, 131, 132:M. 9X. 9FR, 9FD PRINTED IN U.S.A. 01977 GENERAL MOTORS CORP.
BULLETIN: 9D-8S DATE: NOVEMBER 1977 PAGE: 2
A D J U S T M E N T AND TUNE U P S P E C I F I C A T I O N S
I A D J U S T M E N T S P E C I F I C A T I O N S
- .
M O D E L "2MC" (DUAL-JET)-
R E F E R T O L A B E L IN E N G I N E C O i v ~ r ~ n I IV I~NT F O R C O R R E C T
*Alternate Method TUNE-UP P R O C E D U R E A N 0 SPEClF lCATlOMS
Note: 150561 57-452-1 7055053 ,175: Others ,210". IMPORTANT: All Choke Measurements Are Made a t TOP Edge Of Valve.
CARBURETOR MODEL CARBURETOR NO.
2MC
7045358
2MC
170561 57 17056454
ZMC
17056452 17056456 17056458
ZMC
17056455
ZMC
17056457
BULLETIN: 9D.BS DATE: NOVEMBER 1977
Delco Carburetor PAGE: 3 FILE AFTER BULLETIN 9D-8A REPLACES PAGE 3 DATED NOVEMBER 1976
ADJUSTMENT AND TUNE UP SPECIFICATIONS
7 I ADJUSTMENT SPECIFICATIONS
. . - . - - . -
MODEL "2MC" - "MZMC" - "M2ME" (DUAL-JET)
.JJUSTMENT BULLETIN NO. 1 9 D 8 A ! 9D-8A ! 9 D B A 9 D a A I 9D-8A - ~-~ I I
M2MC
17057173
M2MC
17057172 17057176
ADJUSTMENT FLOAT LEVEL PUMP ROD LOCATlOP PUMP ROO
X U U M BREAK-LEAN 1.210 1 9 1.160 .CUUM BREAK-FRONT(ANGLEGAUGE~ I
~ -~~ I I
2MC
170571 57
2MC
17056459
FAST IDLE (BENCH) CHOKE COIL LEVER CHOKE ROD (FAST IDLE CAM)
gACUUM BREAK-FRONT(PLUG GAULit'l 1 . I J 3 I I 103 I I -- VACUUM BREAK-REAR(ANGLE GAUGE) Note 12 Note 12 VACUUM BREAK-REAR (PLUG GAUGE*) Note 13 Note 13
UNLOAOER 5 190 15 190 15 240 15 240 15 - -
CHOKE SETTING Index 16 2NR 16 1NR 16 2NR 16 2NR 16 -
2MC
170571 50 17057151 17057156 17057158
I
Spec.
118
OUTER
3116
3 Turns
,120
. lo5
1 REFER TO LABEL IN ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEDURE AND SPECIFICATIONS
'Alternate Method Note: Angle Gauge Setting 36'. Plug Gauge ,225.'; After 22;500 Miles, Reset to 38'. or ,240" IMPORTANT: All Choke Measurements Are Made A t Top Edge Of Vs ve.
Fig. No.
pp
1
3
3
IDLE SPEED ADJUSTMENT
IC IDLE SPEED ADJUSTMENT
AST IDLE R.P.M.
CO, WD, 131,132:M,9X,9FR.9FD
I I
4
5
7
PRINTED I N U.S.A. 0 1 9 7 7 GENERAL MOTORS CORP.
Spec. 118
OUTER
11/32
SEE DECAL SEE DECAL
900.P Low Step
3 Turns
,120
,085
Fig. No. 1
3
3
17
l8
SEE
DECAL
4
5
7
spec.
118
OUTER 318
SEE DECAL
ZCAL 900-P LOW Step
3 Turns
,120
,090
Fig. No. 1
3
3
l7
1 8
SEE
DECAL
4
5
7
Spec. 11/32
INNER
114
SEE DECAL
goo-N LOW Step
3 Turns
,120
,075
Fig. No. 1
3
3
l7
SEE
DECAL
4
5
7
Spec. 11/32
OUTER 5116
SEE DECAL
1750-P 2nd Step
Fig. No. 1
. 3
3 Turns
,120
,075
5
7
l7
SEE
DECAL
SEE DECAL
1 7 5 0 . ~ 2nd step
l7
SEE
DECAL
BULLETIN: 9D-8S
DATE: NOVEMBER 1977 PAGE: 4
T O R M O O E L 1 M2ME I MZMC I M2MC I MZMC I MZMC I
ADJUSTMENT SPECIFICATIONS
ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS "2MC" - "MZMC" - "MZME" (DUALJET)
C A R B U R E
REFER Tu Lnaer IN ENGINE COMPARTMENT FOR CORRECT
Note: 1705845045°: Otherr 40'.
CARBURETOR NO. 17058130 17058131 17058132 17058733 170581 84 170581 86
170581 50 170581 52
170581 51 17058156 110581 58
- -
17058154 17058155 17058450
- - -
170581 60
BULLETIN: 9D .S RED SECTION
DATE: MAY 1983
Delco Carburetor PAGE: 5 REPLACES PAGE 5 DATED APRIL 1979
ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS "2MC"-"M2MC"-"M2ME"-"E2ME" (DUALJET)
M2ME M2ME M2MC MZMC MZME 17058192 17058498 17059100 17059108 17059130 (Turbo) (Closed Lnnp) 17059101 17059110 17059131
17059102 17059138 17059132 17059103 17059139 17059133 17059142 17059140 17050170 17059143 17059141 17059171 17059144 17059145
ADJUSTMENT SPECIFICATIONS
I L E CAM)
.E AN IRONT (ANGLE GAUGE)
BULLETIN: 9D-8S RED SECTION DATE: MAY 1983 PAGE: 6
NOTE 3 -
I - Note 1: 17059434-436 29"; Others 27 Note 2: 1600-P; California Models 1950-r. Note 3: 17059151 3S0; Others 27'. Note 4: 17059151 25O; 17059154 40°; 17059450 45O. Note 5: 17059191 11132; Others 5116. Note 6: 17059430-432 9/32: Others 15/32.
Delco Ca
BULLETIN: 9D.S RED SECTION
DATE: MAY 1983 PAGE: 7
REPLACES PAGE 7 DATED APRIL 1979
ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS 'L2MC"-L'M2MC"-''M2ME"-''E2ME'' (DUALJET)
1 ADJUSTMENT SPECIFICATIONS 1
I I I I I I I I I VACUUM BREAK-REAR (ANGLE GAUGE) 17" 1 12 1 21' 1 12 1 30" 12 1
CARBURETOR MODEL CARBURETOR NO.
Note 1: 17059492-498-2NR; Others INR.
M2ME
17059196 17059491 17059492 17059498
M2ME
17059184 17059193 17059194
,,
EZME 17059496
(Closed LOOP)
NOTE!