Repair 7

What Is a Siamese Port

If you are a novice when it comes to the automotive world, you may notice your mechanic using a bunch of jargon that youre not familiar with. The term "Siamese port" may confuse you at first, but its a simple term to comprehend once you know what it refers to.

Port Definition

A port, as it relates to the automotive world, is part of an internal combustion engine. The port is typically straight, looking almost like a pipe, and there can sometimes be several ports in one engine.

Siamese Port

A Siamese port refers to a car port that has a double-cylinder construction, or two ports welded together. The twin ports stuck side by side is where it gets its name, and this type of port is typically found in larger engines.

Function

The Siamese port has two openings that both lead to the combustion chamber of the engine. The port also regulates the fuel-air mixture, and deflects and constricts airflow to the appropriate areas of the engine to assist the control valve.

Parts

The Siamese port will be attached to several engine parts, making it easy to locate. A control valve will be fitted at one portion of the port as well as a deflection valve.