Definition

Noun: A head gasket is a specific type of gasket designed to create a seal between an engine's cylinder head and engine block. Its primary function is to prevent the leakage of combustion gases, engine coolant, and engine oil between these two major engine components.

Usage

The term head gasket is used exclusively as a noun. It refers to a critical automotive engine part. - It is typically used with verbs like replace, blow, fail, seal, install, or check. - It is often preceded by the definite or indefinite article (the, a) or a possessive determiner (my, its).

Examples

• The mechanic said the head gasket needs to be replaced.
• A blown head gasket can cause the engine to overheat.
• Sealing the combustion chamber is the main job of the head gasket.

Advanced Usage

• "to blow a head gasket": This is a common idiom meaning the head gasket has failed. It can also be used figuratively to mean someone has become very angry.
  • The old car finally blew its head gasket on the highway.
  • (Figurative) When he saw the mistake, he blew a head gasket.

Variants and Related Words

• Gasket (n): A general term for a mechanical seal that fills the space between two mating surfaces.
• Cylinder Head (n): The engine component that sits above the cylinders and contains the combustion chambers.
• Engine Block (n): The main structure of the engine that houses the cylinders.

Synonyms

• Cylinder head gasket: A more precise, full technical term.

Related Phrases

• Head gasket failure: The condition where the head gasket no longer seals properly.
• Head gasket sealant: A temporary chemical product used to repair minor head gasket leaks.

Noun

1. a gasket to seal a cylinder head