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Edelbrock 1478 User Manual

Edelbrock 1478
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©2008 Edelbrock Corp. Brochure #63-1478
Catalog #1478 Rev 11/08 - AJ/mc
A
FIGURE 3
B
Shaft Subassembly
black wire (-)
FIGURE 4
retaining screw
®
PERFORMER SERIES CARBURETOR
ELECTRIC CHOKE KIT
CATALOG NUMBER:#1478
For Edelbrock #1405 & #1407 carburetors
INSTALLATION INSTRUCTIONS
The enclosed electric choke kit is designed to replace the existing manual choke on Edelbrock Performer Series carburetors #1405 and #1407. Please fol-
low the instructions closely to ensure a proper installation. For technical questions call: 1-800-416-8628.
INSTALLATION KIT CONTENTS
FIGURE 1
Brass
Plug
(Choke Vacuum Passage)
Choke Lever & Hex Head Screw
Airhorn
Screw
red wire (+)
to ignition key activated 12V source
Front of Carburetor
1- Choke Piston Housing
1- Connecting Rod
1- Thermostatic Coil Assembly w/Cap
1- Choke Cable Lever
1- Baffle Plate
1- Choke Piston Housing Seal
1- Choke Cap Gasket
1- Hair Clip Retainer
3- Choke Housing Attaching Screw
1- Choke Ground Wire (black)
3- Choke Cap Screw
1- Choke Positive Wire (red)
3- Choke Cap Retainer
1- Shaft Subassembly
1- 1/4”AN Washer
1- Lever (14-555)
CHOKE INSTALLATION
1. Remove the carburetor from the engine by disconnecting all linkages and lines.
Use the original carburetor Installation Instructions as a guide.
2. Remove the manual choke cable clamp bracket (Figure 1) by removing the airhorn screw. Re-tighten the airhorn screw after the bracket has been
removed.
Front of
carburetor
Manual Choke
Cable Clamp
Bracket
3. Remove the choke cable lever hex head screw and the choke cable lever (Figure 1).
4. Remove the screw A (Figure 3) that holds the choke linkage to the shaft subassembly.
5. Remove hair clip B and pull the shaft subassembly out of the airhorn.
6. Place the new lever #14-555 on the new shaft and slide this subassembly into the airhorn. The lever should be located on the shaft using Figure 7 as
a guide. Using the hair clip, reattach the fast idle linkage rod D.
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Edelbrock 1478 Specifications

General IconGeneral
Product TypeCarburetor
Model Number1478
BrandEdelbrock
Throttle Bore Size1.75 in
Choke TypeManual
Mounting FlangeSquare Bore
Throttle LeverStandard
MaterialAluminum
Engine TypeV8
ApplicationPerformance street

Summary

Choke Installation

Kit Contents

List of components included in the electric choke kit for installation.

Manual Choke Removal

Instructions for removing the existing manual choke components.

Electric Choke Assembly

Steps for installing the new choke lever and shaft subassembly.

Wiring Connections

Guidance on connecting the electric choke's positive and ground wires.

Choke Adjustment

Piston Linkage Adjustment

Procedure to adjust the choke piston linkage using a .026" wire.

Fast Idle Linkage Adjustment

Method to adjust the fast idle linkage for proper engine operation.

Choke Cap Setting

Setting the choke cap position to control choke closure time.

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