Engine Valve

Automotive valve guides are small, цилиндрические металлические втулки, pressed or integrally cast into the cylinder head of most reciprocating engines. They serve two main purposes:

1. To guide the reciprocating motion of the valves and ensure proper alignment with their valve seat inserts. This is crucial for creating a tight seal between the valve and the seat, which prevents combustion gasses from leaking into the crankcase and oil from entering the combustion chamber.