What are fire rings designed to do as a cylinder head is torqued?
A) Stay rigid.
B) Hold their shape for repeated use.
C) Temporarily protect the cylinder bore flange until the head gasket makes a seal.
D) Deform to create the best possible seal.

Question

Quizplus · Accepted Answer

Fire rings are designed to deform as the cylinder head is torqued down, creating the best possible seal between the cylinder head and the engine block. This ensures that combustion gases are contained, and coolant and oil passages are properly sealed.

What Are Fire Rings Designed to Do as a Cylinder