A test carried out with diagnostic equipment to make sure each cylinder of the engine is working to its full potential.

The part of an engine containing the cylinders. The cylinder block may also incorporate the water cooling jackets and provisions for the valve gear.

The diameter of the cylinder.

Process of filling a cylinder during the induction stroke.

Encloses the top of the cylinder block.

Cylindrical or tubular chambers in which the pistons of a reciprocating engine or pump are fitted. They are contained in the cylinder block.