old old old old Merc

[Stllrng]

I have an old 50-hp merc, late 1960's. It runs like a clock, and everything works okay. The vent were the water comes out is just a trickle at idle, and more or less a stream at full throttle. How bad is this? Do I need to worry a whole bunch? Remember, I don't know anything about outboards. Not yet. Thanks in advance.

 

[BayStLouis]

Re: old old old old Merc

It sounds fairly normal. Many older outboards were not designed to spray a high-pressure stream out of the cooling system indicator. Some engines of that vintage had no water pump "tell-tale" at all. <br /><br />Have the water pump impeller changed, if that has not already been done. As you'll learn, that is a regular maintenance chore on outboards.

 

[Yepblaze]

Re: old old old old Merc

The pee hole as it might be called sometimes gets stuff in it and might need probing with a wire or something while it's running. If that doesn't seem to make it spray better you probably are due for a waterpump replacement.

 

[Rex]

Re: old old old old Merc

Check with the dealer for a "impeller".<br />It's very easy to replace.<br />If youdo not you will burn the engine<br />soon er or later.<br />You are just getting the water to keep it<br />cool and that it.