Engine Valve Guide

Function of Engine Valve Guide is to guide the movement of valve

Ensure that valve does reciprocating straight motion

So that valve and valve seat ring can be correctly fitted

Heat of the valve rod is transmitted to cylinder head

Generally selected carbon steel, hardness 40 ~ 45HRC.

is adopted relative to the center line of the cylinder head. This arrangement can make the middle water cavity of the cylinder head increase, strengthen the cooling, at the same time, can make the combustion chamber design more compact, diameter of the valve head increases.

  of Engine Valve Guide must be selected appropriately. Too small interference will make the pipe loose, leakage of oil into the combustion chamber; Too much interference will cause the cylinder head to crack when pressed into the conduit. 

The cylinder head is uniformly heated to 80℃~100℃, and Engine Valve Guide is cooled to -40 ℃.Quickly install the punch rod and press the conduit into the conduit hole on the cylinder head. After the pipe is pressed, the inner hole is hinged according to the regulations.