www.iFourWinns.com

1999, 298 Vista with twin 5.0 Volvos. I am about to do my spring maintenance and part of that means changing the impellers. When I remove the hoses on the pump, am I in danger of water flowing into the bilge?

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Current Boat:
2004 Sea Ray 320 Sundancer "Nauti Luvin'"

Previous Boats:
1999 298 Vista "Seas The Day"
2008 H200SS "Nauti Luv"
2006 Tahoe Q4

Ive never done it myself, but I have read that it can be done. I believe the pump is above the waterline, but from memory it said to kink the hose and tuck it behind I belive the crank pulley, or maybe the belt.

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Jeff

'14 Cruisers 380 Express "Simon Sez"
Merc 8.2 Mag MPI 380
DTS B3X, (x2) Axius Premier


(SOLD)
'08 V318
Merc 350 Mag MPI 300
DTS Seacore, B3 (x2)

I did it last year. The pump on mine is below the water line. I got a joiner friend to turn me two wooden bungs tapering from 1" -3" over 12" to plug the hoses, they worked a treat , no more than a jug full water escaped.

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Regards
Beyond the Blue

"If we improve with age I'm now excellent"


Ex 1998 238 Vista 5.0Gi SX DP
Lexus RX300

I'm sure you'll get different replies, but I never take the hoses loose from the impeller housing. Instead I leave the housing attached to the hoses, pull the housing up above the crankshaft. As long as the housing doesn't drop below the crankshaft you should be fine. If you want you can zip tie one of the hoses to a braket above. Be careful not to overtighten the four little screws that hold the housing together. I think the impeller housing is brass and it will strip out very easily. Can't remember if your last Four Winns had vp or not, if so everything else is the same.

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Lakebum
2006 378 Vista
Nashville, TN
Current
04 Hustler Cheetah
06 Seadoo sportster 150
Past
06 378 vista
328 vista
240 horizon
21' glastron
20' celebrity

I had the same engine in my last boat as well, so its the same process. Like you, I have always just taken the housing off, rather than the hoses. It makes it easier...unless water starts flowing in, lol.

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Current Boat:
2004 Sea Ray 320 Sundancer "Nauti Luvin'"

Previous Boats:
1999 298 Vista "Seas The Day"
2008 H200SS "Nauti Luv"
2006 Tahoe Q4

When I've had to change a thermostat in the water, I've used a large wooden plug I got at WM to plug the raw water line coming into the boat (same level like the hose that comes from the transom to the pump on the Volvo) and it gives you a bit of extra security, I put in the plug in it and get the hose up above the water line.....

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88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

Just found this picture if it helps.

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Regards
Beyond the Blue

"If we improve with age I'm now excellent"


Ex 1998 238 Vista 5.0Gi SX DP
Lexus RX300

This might be redneck and I never tried it. If it is a boat with out-drives; starting muffs, hose to pipe adapter and pipe cap. It could be used with the other methods mentioned as insurance. Dan

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Current Boat: 1994 278 Four Winns Vista