How to identify inlet valve and exhaust valve of an AE ?

Take care not to confuse the suction and exhaust valves as they are of the same shape but made of different materials.

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FIG.: Marking on suction and exhaust valve stem

In the fig., S represents suction valve and E represents exhaust valve.

It is important to note that tappet clearance of suction valve is 0.40 mm and tappet clearance of exhaust valve is 0.50 mm which is measured by feeler gauge. The tappet clearance of exhaust valve is kept more as it is subjected to high temperature.

About the author

Anand Gautam

Anand Gautam is a marine engineer, Graduated from M.E.R.I. Mumbai. He likes to sail onboard ship and is one who is passionate about his job. He loves to share his knowledge, information, and ideas to everyone in a simplified way just for his satisfaction.

1 Comment

  • how to find out the inlet and exhaust valves in mixed condition..also there is no numbering s found in valves? that is to be used in engine in stead of unavailablity of new spare

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