Holley Carburetors. Mike Mavrigian

      

      CarTech®, Inc.

      838 Lake Street South

      Forest Lake, MN 55025

      Phone: [phone] or 800-551-4754

      Fax: [phone]

       www.cartechbooks.com

      © 2016 by Mike Mavrigian

      All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without prior permission from the Publisher. All text, photographs, and artwork are the property of the Author unless otherwise noted or credited.

      The information in this work is true and complete to the best of our knowledge. However, all information is presented without any guarantee on the part of the Author or Publisher, who also disclaim any liability incurred in connection with the use of the information and any implied warranties of merchantability or fitness for a particular purpose. Readers are responsible for taking suitable and appropriate safety measures when performing any of the operations or activities described in this work.

      All trademarks, trade names, model names and numbers, and other product designations referred to herein are the property of their respective owners and are used solely for identification purposes. This work is a publication of CarTech, Inc., and has not been licensed, approved, sponsored, or endorsed by any other person or entity. The Publisher is not associated with any product, service, or vendor mentioned in this book, and does not endorse the products or services of any vendor mentioned in this book.

      Edit by Paul Johnson

      Layout by Monica Seiberlich

      ISBN 978-1-61325-314-4

      Item No. SA330

      Library of Congress Cataloging-in-Publication Data Available

      Written, edited, and designed in the U.S.A.

      10 9 8 7 6 5 4 3 2 1

       Title Page:

       When it comes time to rebuild your Holley carb, tools and parts selection is important. This stand allows pivoting and rotating of the carb a full 360-degrees.

       Back Cover Photos

       Top:

       One of the first steps in disassembly is to remove the float bowl. Four screws hold the float bowl to the carb body. Once the screws have been removed, a light tap with a plastic mallet usually frees the float bowl from the metering plate.

       Middle Left:

       Install the main jets to the metering block using a dedicated jet driver instead of a conventional screwdriver. A Holley jet tool safely captures the jet and eliminates accidental slippage or burring of the jet’s drive slot.

       Middle Right:

       On the metering block, you find the idle-mixture screw. Notice the cork-rubber gasket in the hole recess. Use a small pick to remove this gasket. Always plan to replace this gasket because it can be easily damaged.

       Bottom:

       When assembling the carb, slide the fuel transfer tube on the float bowl. Slide the fuel bowl into position while allowing the fuel tube to slide into its rubber seal. When fully installed, the bulge at each end of the tube should be seated against its rubber seal.

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      CONTENTS

Acknowledgments

Introduction

What is a Workbench® Book?

Chapter 1: Holley History, Models and Serial Numbers

Holley ID System

Baseplate Bolt Pattern

Air-Cleaner Base

Chapter 2: Holley Carburetor Operation

Booster Venturi

Jets

Idle Circuit

Main Metering

Power Valve

Venting

       Accelerator Pump

       Fuel Inlet

       Mechanical versus Vacuum Secondary Operation

       Chapter 3: Carburetor Selection and Setup Tips

       Selecting Carburetor Size

       Carburetor Linkage

       Vacuum Fittings

       Chokes

       Chapter 4: Tools and Equipment

       Basic Hand Tools

       Specialty Tools

       Chemicals

       Drill Bits

       Torque Wrench

       Cleaning Chemicals

       Media Blasting

       Measuring Tools

       Chapter 5: Carburetor Disassembly

       Fuel Inlet Removal

       Fuel Bowl Removal

       Metering Bowl Disassembly

       Float Removal

       Needle and Seat Removal

       Accelerator Pump Removal

       Accelerator Pump Discharge Nozzle Removal