Water pump leaking

[skylark]

My new to me 04 380DA twin 8.1's starboard engine started steaming through the exhaust tonight, I shut it down right away, we were a mile away from our anchor destination, I opened up the hatch to find water pouring out the shaft, the shaft is loose and the belt is loose, guess I have to crawl back too home port 25 miles on the port engine, is this easy to change? Any thoughts would be appreciated.Gary

 

[Jimmy Buoy]

Had the same thing with one of my pumps. There is a CSR member that documented how to remove the pump which was extremely helpful. Once removed, I checked to see that the pump's bearing housing wasn't scored by removing the pulley and shaft - it was fine. I installed a new spindle/double bearing assembly, reinstalled the pulley, installed a new water impeller (since the old one was already out), and once back on the engine has worked fine for the last two summers.

check out the link... http://www.perfprotech.com/store/assembly/SEAWATER-PUMP,7460-210.aspx and see parts 4,5,6,and 7 to see the parts and costs.

It wasn't all that difficult. The hard part might be accessing the water lines going to the pump, depending on your setup. My engines face forward and have relatively easy access to the pumps.

 

[my3sons]

The good news is that it is the starboard motor, the pump is easier to get to as compared to the port.
Close the seacock, remove the belt and the pulley bracket (#16). Unbolt the pump bracket, then loosen the hose clamps at the pump.
You want to pull the pump and bracket as an assembly away from the hoses, as opposed to removing the hoses from the pump, which is the natural thing to do. An old philips screwdriver with the last inch or so of the bit end bent at 90 degrees, and ground blunt, works good to free the hoses from sticking to the pump inlets. Those hoses are short and ridgid, and just can't be taken off the pump with the pump in place. After you do the repair as Jim outlined, put a little dish liquid on the hose connections on the pump and slide the unit back into the hoses, and button things back up.
Good luck.

 

[skylark]

Thanks guys, great information, I'll let you know how I make out.

Cheers!

 

[skylark]

Is the pulley pressed on and off?

 

[my3sons]

Is the pulley pressed on and off?

Yes, you should use a pulley puller/installation tool. If you don't have one, maybe you can borrow one or have someone do it for you if you don't want to purchase one. Measure the distance from the end of the shaft to the outside of the pulley hub with a caliper or depth gage, so you can reinstall to the correct spot

 

[skylark]

the marina next door had all the parts that were listed to repair the pump so went and got the parts but then realized after removing the pump I couldn't trust the housing because it was pretty chewed up with ball bearings and shrapnel, returned the parts and they had a complete assembly in stock, so now I have to go to a shop and have the pulley pressed off the old and back on the new.

the new pump has the impeller installed, the date on the box is 2011, should I worry about the impeller sitting in the one spot for so long? do I add dish soap as a lubricant and spin it a few times before I install it?

 

[my3sons]

I wouldn't worry about the impeller taking a "set" in a new pump. It's probably not ideal, but the vanes are more resilient when never used as opposed to having been run a few seasons. I carry a spare sea water pump on my boat, and it has an impeller in it.
You can put the dish liquid in if you want, it won't hurt. After you install the pump and open the seacock, the pump fills with water because it is below the water line, so it isn't running dry, at least that's the way it is on my 360, and the two boats aren't that much different.

 

[skylark]

Great news, Thanks Mark. I thought about carrying a spare pump, do you have a link to the tool I would use to swap the pressed on pulleys?

 

[my3sons]

I am pretty sure that the pulley tool I have on the boat is an OEM, try googling it up?
good luck