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Project Gutenberg's Marvel Carbureter and Heat Control, by Anonymous This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org Title: Marvel Carbureter and Heat Control As Used on Series 691 Nash Sixes Booklet S Author: Anonymous Release Date: November 20, 2008 [EBook #27298] Language: English Character set encoding: ASCII *** START OF THIS PROJECT GUTENBERG EBOOK MARVEL CARBURETER AND HEAT CONTROL *** Produced by Gerard Arthus, Greg Bergquist and the Online Distributed Proofreading Team at http://www.pgdp.net MARVEL CARBURETER AND HEAT CONTROL AS USED ON SERIES 691 NASH SIXES BOOKLET S MARVEL CARBURETER CO. FLINT, MICHIGAN U.S.A. MODEL "S" CARBURETER Used on Series 691 Nash Sixes The carbureter measures the fuel charges for the engine and automatically mixes them with the proper amount of air to form a highly combustible gas. The Marvel Model "S" Carbureter is of the automatic air valve, heat controlled type. Its outstanding advantages are: 1. Simplicity of construction and operation. 2. Quick starting in any weather. 3. Automatically controlled heat application to ensure complete vaporization of fuels. 4. Economy in fuel consumption. 5. Ease of adjustment to meet varied driving and climatic conditions. CONSTRUCTION The construction embodies a main body or mixing chamber and a conventional float chamber bowl with fuel strainer attached at point of entrance of fuel to bowl. Within the mixing chamber are two nozzles which proportion the amount of gasoline used in the mixture. One of these nozzles, called the "low speed," is regulated by the gasoline adjustment screw at bottom of carbureter and the other, called the "high speed," is controlled by the automatic air valve. An air screw is provided which regulates the pressure of the air valve spring enclosed therein. Within this screw is also enclosed a plunger connected by a link to the air valve. The function of this plunger is to provide a resistance in addition to that of the air valve spring to assist in acceleration. This arrangement of plunger and air valve screw is termed the dash pot. A further control of the high speed jet is provided by the fuel metering valve operated
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