Join Date: Feb 2011
Location: San Francisco Bay area
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Re: Raw Water pump leak
Sorry but once you get any drip, you shouldn't be using that pump - for two reasons - one, you could get salt water in the engine. Two, the salt water is destroying the internals of the pump and making it more and more likely that you can't rebuild it.
The quick fix is to buy a new pump, and then rebuild the one you have for a spare. Having a spare means your cruising plans can't get ruined by a leaking pump. I went to the lengths of installing an extra set of bronze hose adapters in my spare pump, for a quick emergency swap out if it is ever necessary. Swapping the pump is quicker than changing the impeller, or messing about with seals.
Any idea what make and model of pump you have?
I just replaced my Sherwood, which has a very short life due to poor design, with an Oberdorfer.
Bristol 31.1, San Francisco Bay
Last edited by MarkSF; 05-13-2014 at 06:39 PM.