Carburetor Process

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1.0 INTRODUCTION The purpose of this paper is to describe the process of removing an old carburetor and replacing it with a new Holley carburetor on an old Ford 289 engine from a 1965 Mustang. The following terms are required to know for rest of the document to make sense. • Carburetor: the chamber where fuel and air are mixed • Intake manifold: supplies the fuel and air mixture to the cylinders • Vacuum lines: rubber pipes connectors that route a vacuum from the intake manifold to power exhaust, brakes, any sort of motor, and air conditioning • Throttle Lines: controls inlet for gas and air in the carburetor and is connected to the gas pedal • Kick Down Linkage: shifts gears in an automatic transmission when revolutions per minute…show more content…
To access the engine, the hood is lifted by lifting a lever above the bumper. The location of the aforementioned lever is seen in Figure 2.1: Hood Lock: Figure 2.1: Hood Lock Once the lever has been lifted the hood will be slightly lifted up which leaves the rest of the lifting for the mechanic. Figure 2.2: Engine Bay is an overview of the engine bay itself. Figure 2.2: Engine…show more content…
Thirdly, the wires leading up to an electric choke are detached; however, if it is a manual choke the rod connecting it will be disconnected. It is recommended by nearly all mechanics to switch to an electric choke. Figure 2.3: Driver’s Side of a Carburetor in addition to displaying throttle lines it also displays where the kick-down linkage is hooked up. Figure 2.4: Passenger’s Side of a Carburetor displays the electric choke and float bowl (mentioned later). Figure 2.4: Passenger’s Side of a Carburetor (Source: Speedway Motors, 2016) Third, as seen in Figure 2.4: Passenger’s Side of a Carburetor, the mounting sockets are shown. Furthermore, when attached to the manifold there are fastening nuts that need to be removed. Once all nuts are removed the carburetor is simply lifted off the intake manifold. After removing the old carburetor, there will still be fuel in the float bowl. To remove the fuel, the carburetor is turned upside-down and the fuel will pour out of the top of the carburetor. Figure 2.5: Close up of the Intake
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