Hi Roger

Not on the pump housing where the impeller is. It looks like a designed
hole, sort of oblong with rounded corners, on the narrow part of the pump
housing shaft area that drives the impeller. I am assuming the water is
coming from the housing between the impeller and drive shaft seal, then runs
along the shaft and dropping through the hole.

Thanks

"Roger Long" wrote in message
...
Do you mean the hole where the shaft that drives the impeller goes into
the engine or a small hole on top of the pump housing?

--

Roger Long



"Shawnews" wrote in message
news:_Obng.88432$IK3.60860@pd7tw1no...
Good morning

I hope someone can help with an annoying problem.
I have a Yanmar 1GM10 inboard on my small sailing boat. It runs really
well. Recently I had it serviced, oil changed etc. including replacing
the impeller.

It has had a salt water leak for many years before I owned the boat. I
have only owned the vessel for 2 years.

The salt water is coming through the impeller housing, and dripping from
the designed hole between the impeller and the engine. I sense this is
where the engine shaft goes through to drive the impeller. It is not
coming from a gasket - that would be too easy! I did not see what the
seal is like where the shaft enters the area of the impeller. Is there a
replaceable seal there? Will it need a new impeller housing? I hope
not. No gaskets are leaking at all. He put on a new gasket when he
replaced the impeller.

I would appreciate any information you may have in this regard.

Many thanks