Edelbrock 1910 - Manual (Page 3)

Page 3 of 4 ©2002 Edelbrock Corporation
Brochure No. 63-0149 Rev. 10/02
FRONT VACUUM BREAK ADJUSTMENT AIR VALVE ROD ADJUSTMENT
UNLOADER ADJUSTMENT
SECONDARY OPENING ADJUSTMENT SECONDARY CLOSING ADJUSTMENT
REMOVE & REPLACING TAMPER RESISTANT CHOKE COVER
SECONDARY THROTTLE LOCK-OUT ADJUSTMENT
MEASURE DISTANCE
BETWEEN UPPER EDGE
OF CHOKE VALVE AND
AIR HORN WALL.
BUBBLE ON ANGLE GAUGE
SHOULD BE CENTERED.
SEE FIG. 7
TO ADJUST TURN
SCREW
PLACE CAM FOLLOWER ON
HIGH STEP OF FAST IDLE
CAM.
TAPE PURGE BLEED HOLE IN
COVER. (WHEN USED). APPLY
OUTSIDE VACUUM SOURCE
TO FULLY SEAT DIAPHRAGM.
TO ADJUST
BEND ROD
MEASURE BETWEEN UPPER EDGE OF
CHOKE VALVE AND AIR HORN WALL. STEP A
CHOKE VALVE AND THROTTLE VALVES
CLOSED.
STEP B
CHOKE VALVE HELD WIDE OPEN BY
PUSHING DOWN ON TAIL OF FAST
IDLE CAM.
TO ADJUST BEND
LOCKOUT PIN.
MEASURE DISTANCE
BETWEEN LOCK-OUT PIN AND
LOCK-OUT LEVER.
MEASURE DISTANCE BETWEEN
END OF LOCK-OUT PIN &
LOCK-OUT LEVER.
TO ADJUST FILE
END OF PIN.
(.015” CLEARANCE)
(.015” CLEARANCE)
CLOSE CHOKE VALVE BY
PUSHING UP ON TANG ON
VACUUM BREAK LEVER.
(BUBBLE ON ANGLE GAUGE
SHOULD BE CENTERED).
TO ADJUST
BEND TANG.
THROTTLE VALVES HELD IN
WIDE OPEN POSITION.
OPEN PRIMARY THROTTLE SLOWLY
UNTIL ACTUATING LINK CONTACTS
TANG.
TO ADJUST
BEND TANG.
TO ADJUST
BEND TANG.
LINK SHOULD BE IN
CENTER OF SLOT.
2 0’CLOCK
POSITION
3/16”
1/8”
3/4”
ADAPTER MADE
FROM STEEL TUBING
DISASSEMBLY: CAREFULLY ALIGN A #21 DRILL (.159 ”) ON PO RIVET HEADS AND
DRILL ONLY ENOUGH TO REMOVE RIVET HEAD, DRILL ALL RIVET HEADS (3) AND
USE A DRIFT PUNCH AND HAMMER TO DRIVE THE REMAINDER OR THE RIVETS OUT
OF THE CHOKE HOUSING. REMOVE CHOKE COMPONENTS.
REASSEMBLY: PLACE CHOKE CAP IN PLACE AND ROTATE CLOCKWISE UNTIL COIL
TANG ENGAGES LEVER TANG AND CLOSES CHOKE VALVE. IT IS IMPORTANT THAT
THIS ENGAGEMENT IS ACHIEVED FOR PROPER OPERATION.
MODEL 1903: ROTATE AND ALIGN THE NOTCH IN THE COVER WITH THE PROTRUSION
ON THE RETAINER INSTALLED AT THE 2 O’CLOCK POSITION.
MODEL 1904: ROTATE AND ALIGN THE NOTCH IN THE COVER WITH THE RAISED
CASTING BOSS AT THE 2 O’CLOCK POSITION. RETINING THE COVER WITH THE POP
RIVETS PROVIDED IN THE KIT. IT MAY BE NECESSARY TO USE AN ADAPTER (TUBE)
IF INSTALLATION TOOL INTERFERES WITH THE ELECTRICAL CONNECTION TOWER IN
THE CHOKE COVER.
TURN CLOCKWISE
FOR RICHER SETTING
CHOKE VALVE WIDE OPEN FAST
IDLE CAM FREE OF CAM
FOLLOWER.
CURB IDLE SET TO
PROPER RPM
LEVER AGAINST TANG.
MEASURE DISTANCE BETWEEN
ROD AND SLOT IN LEVER.
(.020” CLEARANCE)
AIR VALVE COMPLETELY
CLOSED. MEASURE DISTANCE
BETWEEN ROD AND END OF
SLOT IN LEVER
TAPE PURGE BLEED HOLE IN
COVER (WHEN USED). APPLY
OUTSIDE VACUUM SOURCE TO
FULLY SEAT DIAPHRAGM
PUSH UP ON INSIDE CHOKE COIL
LEVER UNTIL TANG ON
INTERMEDIATE CHOKE SHAFT
CONTRACTS TANG ON VACUUM
BREAK PLUNGER STEM
Fig. 9 Fig. 10
Fig. 11
Fig. 13 Fig. 14
Fig. 15
Fig. 12
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(ON CAR) (ON CAR)