What Is Inside The Cylinder Head Of Your Car Engine?

Today we present a new episode of  Easy Mechanics program, in which our colleague Karim Deeb will talk about the components of the cylinder head

Before we talk about this new mechanical issue, dear Arab GT followers, we will remind you of the first two episodes of this program:

The First Episode Of Easy Mechanics Program Is Dedicated For Engines.

Learn About Engine Internal Parts With Easy Mechanics

Watch the third episode of Simple Mechanics:

We initially talked that the cylinder head depends on the configuration of the cylinders in the engine; Inline, Flat (Boxer), V-shaped, or W-shaped. We previously talked about these configurations in the first episode of this program.

For further clarification, an Inline motor has one cylinder head, the V8 engine has two cylinder heads, and the famous horizontal engine named Boxer has two cylinder heads.

What is the cylinder head?

It is the primary structure made mostly of aluminum or iron that sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber.

What Is Inside The Cylinder Head Of Your Car Engine

What is inside?

Here are the components of the cylinder head:

  • Valve, which controls the flow of fuel and air into the piston chamber and allows the exhaust gases to exit
  • Valve Spring, which works to secure valve closure when needed
  • Valve Spring Retainer, which keeps the spring to its correct position.
  • Valve Keeper, which holds the valve and the retainer in order to do their job properly.
  • Valve Seal, which prevents oil from leaking into the combustion chamber.
  • Valve Guide, which moves the valve in the correct way to open properly and is usually made of iron or bronze.
  • Valve Seat, which protects the cylinder head by resisting valve movement.
  • Spring seat, which protects the cylinder head by resisting the spring movement.
  • Head Gasket, which connects the head to the block, and prevents water and oil from leaking,
  • Spark Plugs, which ignites the fuel-air mixture.
  • Camshaft, which controls valve opening, and closing.

Wait for more mechanical information in the upcoming episodes of Easy Mechanics! Stay Tuned!


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