Analisa Kerusakan Valve Engine Excavator Excava200 Pindad

Abstract

Cylinder head of a diesel motor equipped with a valve mechanism. The valve installed consists of the inlet valve and the exhaust valve. The inlet is a valve used to open and close the inlet into the cylinder. While the exhaust valve is used to open and close the drain so the exhaust gas can come out of the combustion chamber. Overlapping is the time when the exhaust valve has not closed fully but the inlet valve has begun to open. Overlapping function to cool the temperature in the combustion chamber, help release exhaust gas and maximize the fuel intake process. The degree of overlapping really depends on the design of the engine and how this machine works. The results of the analysis show that there is demage to the valve component so it must be replaced and there is a contact between the valve and the seat so that repairs are carried out by means of sealing. Greater demage prevention measures by carrying out maintenance regularly Keywords: Valve, Overlapping, Maintenance