Carburetor FAQs:


Q: Was a carburetor invented by Samuel Morey in 1826?

A: Yes.

Q: Was a carburetor among the early patents by Karl Benz as he developed internal combustion engines and their components?

A: Yes.

Q: Are carburetors also referred to as "constant velocity" or "constant vacuum" carburetors?

A: Yes.

Q: Are carburetors typically sidedraft?

A: Yes, because they must be stacked one on top of the other in order to feed the cylinders in a vertically oriented cylinder block.

Q: Were carburetors used in lower trim versions of a car?

A: Yes, However, their complexity compared to both non-feedback carburetors and to fuel injection made them problematic and difficult to service.

Q: Were carburetors the common method of fuel delivery for most US-made gasoline engines until the late 1980s?

A: Yes, when fuel injection became the preferred method.

Q: Are carburetors equipped with an unloader mechanism: The accelerator is held at wide open throttle while the engine is cranked?

A: Yes, and the unloader holds the choke open and admits extra air, and eventually the excess fuel is cleared out and the engine starts.

Q: Is a carburetor sucked up into the mesh and the air is drawn through the oil-covered mesh?

A: Yes, this was an effective system in a time when paper air filters did not exist.

Q: Were carburetors mainly used because they were less expensive than fuel injection systems?

A: Yes, they worked well enough to meet 1980s emissions requirements and were based on existing carburetor designs.

Q: Is a carburetor quite small relative to conventional four-barrel practice?

A: Yes, while the secondaries are quite large.

Q: Is a carburetor the sidedraft SU carburetor and similar models from Hitachi?

A: Yes, and Zenith-Stromberg and other makers.

Q: Were carburetors of the surface type?

A: Yes, and in which air is combined with fuel by passing over the surface of gasoline.

Q: Is a carburetor mounted upstream of the supercharger?

A: Yes, and which is for this reason the more frequent system.

Q: Are carburetors often now seen on very high performance engines?

A: Yes.

Q: Was a carburetor copied extensively?

A: Yes, and leading to patent lawsuits.

Q: Are carburetors required to do this while maintaining low rates of exhaust emissions?

A: Yes.

Q: Are carburetors used in aircraft with piston engines?

A: Yes, and special designs and features are needed to prevent fuel starvation during inverted flight.

Q: Are carburetors placed after the throttle valve where the pressure is reduced partly by viscous drag?

A: Yes, and rather than by Bernoulli's principle.

Q: Were carburetors also very widely used on Volvos and other non-UK makes?

A: Yes.

Q: Are carburetors used the mechanical linkage of their throttles must be properly synchronized for smooth engine running and consistent fuel/air mixtures to each cylinder?

A: Yes.

Q: Are carburetors also still found in small engines and in older or specialized automobiles, such as those designed for stock car racing, though NASCAR's 2011 Sprint Cup season was the last one with carbureted engines?

A: Yes, electronic fuel injection was used beginning with the 2012 race season in Cup.

Q: Were carburetors the most popular type for automotive use in the United States?

A: Yes.