Mazda Carburetor: an Integral Part of the Vehicle System

By: Kimberly Baker

The Mazda carburetor is an integral part of the vehicle that blends the air and fuel in accurate proportions for the engine. This is normally equipped on older model vehicles as this technology has been replaced by the computerized fuel injection. Some engines use a single carburetor while others have multiple carburetors. Older engines employ an updraft carburetor where the air flows below it and exits through its top. The advantage of this design is that it cannot cause "flooding" on the engine as any fluid droplets would fall out of the carburetor but instead on the intake manifold. Another advantage is that it can also be used as an oil bath air cleaner, where the oil supply below a mesh element located underneath the carburetor is drawn in and forced into the mesh and the air is drawn through the oil cover mesh. This is used before as an efficient air cleaner when paper filters did not exist. Later on, downdraft carburetors are introduced and are then replaced by the sidedraft carburetors. Carburetors work using the principle of Bernoulli: the faster the air moves, the lower its pressure.



The Mazda carburetor basically consists of an open pipe and a "throat" or "barrel" by which the air flows through the engine's inlet manifold. The pipe is designed as a venturi which narrows in section and widens again in order to increase the air flow in speed in the narrowest part. Under the venturi is the butterfly valve or the throttle valve. This is the spinning disc that can be rotated end-on to the air flow to restrict the flow or it can be turned so that it completely blocks the fair flow. This valve manages the air flow through the carburetor throat as well as the amount of fuel and air mixture that should be delivered to the system and thereby regulating engine power and speed. The throttle is usually connected via a cable or a mechanical linkage of rods to the accelerator pedal or the equivalent control. There are various working parts that make up the carburetor and these are the pilot airscrew, jet needle, throttle valve, accelerator pump, choke, float chamber, and others that efficiently carry out the proper operations of the carburetor.

It is very important to keep the at its peak working condition for it to operate smoothly and properly. Failure to have it cleaned and inspected periodically can greatly cause a decline in the engine's efficiency and worst can result the engine not to run properly. To prevent its malfunction, always make sure to provide its proper maintenance technique or you can have it checked thoroughly by a qualified service technician. Since the carburetor is the device that ensures accurate mix of fuel and air, ensuring its top condition will surely free you from future complications. Though carburetors may last the life of your vehicle, in some cases it may fail and would require you to have it replaced. To restore the performance of your Mazda, make sure to acquire a replacement that is solely designed for its application in order to bring back the life of your vehicle.

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