Urgent - Raw Water Pump Not Working!

[Don1500]

Originally Posted by Seaduction

I guess if you have the $1,600,000.00 to buy this sportfisherman and you're in a hurry, you can't slow down for some peon in a dinky little old sailboat. I got swamped last year in Adams Creek on the icw by a big yellow hull one of these. He was talking on his cell phone as he wooshed by about 30 feet away.

The guy that did it to me was yellow, too. And not too far from Adams Creek. Are all Yellow Sports Fishers Idiots or is it the same guy?

[colemj]

Originally Posted by Don1500

Are all Yellow Sports Fishers Idiots or is it the same guy?

No, most of the white and blue ones are idiots also. And the green ones.

Mark

[Bash]

Originally Posted by kenny chaos

Maybe I missed it but nobody runs their raw water through a filter?

No filter on my system. Just a strainer.

[Ziggy]

Originally Posted by delmarrey

These are not my words but those of the manufacturers!

In this case you need to take the manufacturer's words with a grain of salt. Not all rubber impeller pumps self prime.

[chrisjs]

Now that the immediate problem is resolved, I suggest you consider why the pump was unable to prime normally. Was the blockage so severe?
My own experience is that I had a Sherwood pump with about 1,400 hours (on a 280HP Cummins) that seemed OK. However, even with a new impeller and new face plate, the pump could not prime the engine from empty when adding antifreeze into the raw water strainer for winter lay up. This meant that I needed to pour antifreeze in from the exhaust end back into the engine, whereas with my Westerbeke generator and Yanmar wing engine, it was easy to suck the antifreeze through from their inlet strainers. Fast forward to getting the boat prepared for an extended Bahamas cruise when I replaced the Sherwood pump with an (almost) identical new SeaMax pump. Now the system primes easily from the strainer. I think the difference was related to wear inside the pump. I suggest you look at how many hours you have on your water pump">raw water pump. It may be time for a replacement or reconditioned pump. Incidentally, one advantage of the SeaMax pump configuration is that is eliminates that damned shaft key in favor of a splined shaft. I once lost one of those keys down the inlet hose and had to tear the boat apart to find it!!!

[delmarrey]

Originally Posted by Ziggy

In this case you need to take the manufacturer's words with a grain of salt. Not all rubber impeller pumps self prime.

Humm! Being it was a well used pump.......................