Small hole on lower unit

[MassDave]

I have an early 60's 50 hp Merc which I found water in the lower unit. Today I was doing some looking and found a small maybe 1/8 inch hole toward the front on the right sight of the prop housing. When I tilted it water drained from the hole. Is this hole suppose to be there or is it a defect in the housing??

 

[carholme]

Re: Small hole on lower unit

Dave;

Those are designed holes to prevent water accumulation which could freeze and crack your housing.

Gerry

 

[MassDave]

Re: Small hole on lower unit

carholme you are a lifesaver. Always helping me out. But now back to tracking down where my water issue is coming from. I drained the oil and am going to the correct washers and not o-rings from NAPA before I go the gasket route.

 

[cr2k]

Re: Small hole on lower unit

Hole is there on purpose. Water in the oil? Or just in the housing? Water will be in the housing from the exhaust.

 

[MassDave]

Re: Small hole on lower unit

IN the oil. Strange thing is I blew some air thru the fill tube I made and had some water blow out of the flush hole that I had the pug out of. I am guessing this shouldn't happen?

 

[carholme]

Re: Small hole on lower unit

Dave;

Not too sure what fill tube you are referring to. Do you mean that you made a tube for filling the LU with oil?

Gerry

 

[MassDave]

Re: Small hole on lower unit

IN the oil. Came out looking like coffee with cream. I went and got new washers gonna try that since I found one was missing. Anything else I should look at?