OLD MERC

[Viking]

My uncle has an old 7.5hp long shaft. He thinks its a late 60's vintage. On the upper area of the shaft their is a couple of ports. One is marked"flush". He wants to know what these ports are and what they are to be flushed with. Any Idea? Thanks Mike

[TLunge]

That round port that says "flush" is to flush out salt water from the engine after use in salt water, it requires a special adapter for a garden hose,and it should have a plug in it. The other ports on the back are exhaust relief ports
TLunge

[Viking]

Thanks I'll pass it along.