Holley Carburetors. Mike Mavrigian

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СКАЧАТЬ change the setup of your carburetor. Whatever your situation, if you have never worked on a carburetor before, rebuilding one can seem daunting.

      The purpose of this book is to take the mystery out of the carburetor rebuild process, and to show you how to do it in straightforward, clear steps. This includes how to disassemble, select parts, install components, and confidently reassemble a carburetor, so your engine and vehicle performs at its best. In the pages of this book, I have documented the entire Holley carburetor rebuild procedure so you disassemble, evaluate, replace worn/defective parts, reassemble, and perform basic calibration. The step-by-step photos illustrate how to perform each step, and the captions explain the tools and techniques required to perform the procedure.

      Before you dive into rebuilding a Holley carburetor, it’s important to understand how it operates. Carburetors are relatively complex devices, and they have a number of circuits, venturis, orifices, and other features. You need to understand how a carburetor and each component functions so you can properly rebuild and tune it. I have included a comprehensive parts guide that provides the available parts for a particular model, so you can select the correct jets, needles, emulsion tubes, and other parts for optimal performance. I also help you select a vacuum or mechanical secondary carburetor for your particular engine and application. Holleys can be set up and calibrated for almost any engine, vehicle, and application.

      If you have built a modified engine or if you’re buying a new carburetor for a particular engine, you need to select the correct CFM (cubic flow per minute) size. Feed too much fuel to the engine and it will sputter and stumble or, in extreme cases, not start. Supply too little fuel and the engine runs out of power on the top end. The instruction and mathematical formulas allow you to select the right carburetor.

      Holley 4-barrel carburetors have a number of jets, needle jets, main jets, and power jets; all of the parts must be tuned as a well-integrated system if you want to get maximum fuel efficiency and performance. This book does not delve into performance modifications. But if you’re looking to setup your Holley Dominator, which is installed on a big-block Chevy, and you plan on drag racing, I suggest you refer to How to Super Tune and Modify Holley Carburetors by David Vizard. In that book, Vizard uses 50-plus years of engine calibration experience and knowledge so you can tune your carburetor for maximum performance for almost any application, high-performance street, drag race, road race, and almost every other form of competition. He also explains how to calibrate the carburetor for almost any engine setup.

      With this book in hand, you will be better able to understand your Holley’s functions and how to perform do-it-yourself repairs and rebuilding to obtain a fresh, like-new carb, in terms of on-engine function. If you’ve never worked on a Holley carburetor before, or if you have dabbled but have questions regarding specific components and disassembly/assembly operations, this book is designed to answer all of your questions. I’ve also included information that is helpful when choosing a carb for a specific application, in terms of features and CFM size.

      Welcome to the world of Holley carburetors.

       WHAT IS A WORKBENCH® BOOK?

      This Workbench® Series book is the only book of its kind on the market. No other book offers the same combination of detailed hands-on information and close-up photographs to illustrate rebuilding and modifying. Rest assured, you have purchased an indispensable companion that will expertly guide you, one step at a time, through each important stage of the rebuilding process. This book is packed with real-world techniques and practical tips for expertly performing rebuild procedures, not vague instructions or unnecessary processes. At-home mechanics or enthusiast builders strive for professional results, and the instruction in our Workbench® Series books help you realize pro-caliber results. Hundreds of photos guide you through the entire process from start to finish, with informative captions containing comprehensive instructions for every step of the process.

      The step-by-step photo procedures also contain many additional photos that show how to install high-performance components, modify stock components for special applications, or even call attention to assembly steps that are critical to proper operation or safety. These are labeled with unique icons. These symbols represent an idea, and photos marked with the icons contain important, specialized information.

      Here are some of the icons found in Workbench® books:

       Important!

      Calls special attention to a step or procedure, so that the procedure is correctly performed. This prevents damage to a vehicle, system, or component.

       Save Money

      Illustrates a method or alternate method of performing a rebuild step that will save money but still give acceptable results.

       Torque Fasteners

      Illustrates a fastener that must be properly tightened with a torque wrench at this point in the rebuild. The torque specs are usually provided in the step.

       Special Tool

      Illustrates the use of a special tool that may be required or can make the job easier (caption with photo explains further).

       Performance Tip

      Indicates a procedure or modification that can improve performance. The step most often applies to high-performance or racing engines.

       Critical Inspection

      Indicates that a component must be inspected to ensure proper operation of the engine.

       Precision Measurement

      Illustrates a precision measurement or adjustment that is required at this point in the rebuild.

       Professional Mechanic Tip

      Illustrates a step in the rebuild that non-professionals may not know. It may illustrate a shortcut or a trick to improve reliability, prevent component damage, etc.

       Documentation Required

      Illustrates a point in the rebuild where the reader should write down a particular measurement, size, part number, etc. for later reference or photograph a part, area, or system of the vehicle for future reference.

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