A friend and I recently tried to rebuild a 5850-0001 raw water pump for our FL120. Got stymied, so ended up taking it to a shop that rebuilds them to finish the job. Picked it up the next day, installed it and it worked fine for two pump out trips, about 75 minutes total run time. Started out fine again this evening as we were going to go pump out.
However, while loosening dock lines the exhaust stopped spitting water. Shut down immediately and checked the sea strainer. That was clear. Started up again, no water. Quickly shut down and everything else seems normal. Started again, this time I checked the spline in the pump and it was NOT turning. The other engine is quite obvious the pump spline spins.
But then I noticed something. The port pump (which was bought "new" last year) has a visible seal of some sort on the engine side. The starboard pump shows no seal at all in the opening (see attached photos).
Now I'm wondering if the shop that rebuilt the pump perhaps do so incorrectly? Is there supposed to be a seal showing there?
However, while loosening dock lines the exhaust stopped spitting water. Shut down immediately and checked the sea strainer. That was clear. Started up again, no water. Quickly shut down and everything else seems normal. Started again, this time I checked the spline in the pump and it was NOT turning. The other engine is quite obvious the pump spline spins.
But then I noticed something. The port pump (which was bought "new" last year) has a visible seal of some sort on the engine side. The starboard pump shows no seal at all in the opening (see attached photos).
Now I'm wondering if the shop that rebuilt the pump perhaps do so incorrectly? Is there supposed to be a seal showing there?