Water Pump

Woodsy · 09-06-2013, 10:13 AM

I replace the water pump impeller on my 502/Bravo setup every 3 years religiously. Its cheap insurance! A failed pump will most likely require a tow and could quite possibly take out an engine.

Not worth the risk in my book!

Woodsy

minnabristol · 09-06-2013, 12:51 PM

If it is a Yamaha I would say every 5-10 years. Impellers actually get worse sitting than they do running. When sitting dry the rubber can adhere to the outer housing and when you start it you will pull chunks off. I have serviced many Yamaha 4 stroke outboards and if the pressure coming out of the little squirting hole in the back is strong you are probably good. I would also say if you store it for long run some propylene glycol through a set of muffs before you put it away and that will lubricate it from sticking.
-Happy Boating.

secondcurve · 09-08-2013, 01:11 PM

I plan to have it looked at this year in the off season. It is a Mercury. How expensive of a job is it to have the water pump swapped out.

Thanks

Scott's Yott · 09-14-2013, 12:59 PM

Very easy to do yourself probably cost 20-30 $

about 100-150 for marina to do it

LIforrelaxin · 09-16-2013, 10:30 AM

I replace the water pump impeller every 2 years in my boat... It is done as part of the yearly maintenance...

As Woodsy points out, it is cheap insurance.

Having had one fail, as JRC did, it sucks being stranded... I noticed very quickly as the engine started to run hotter then normal and shut things down immediately.... but my day and weekend where over....

09-06-2013, 10:13 AM	#1
Woodsy Senior Member Join Date: May 2004 Location: Weirs Beach Posts: 1,974 Thanks: 80 Thanked 984 Times in 443 Posts	I replace the water pump impeller on my 502/Bravo setup every 3 years religiously. Its cheap insurance! A failed pump will most likely require a tow and could quite possibly take out an engine. Not worth the risk in my book! Woodsy __________________ The only way to eliminate ignorant behavior is through education. You can't fix stupid.

09-06-2013, 12:51 PM	#2
minnabristol Junior Member Join Date: Aug 2013 Location: Hopkinton, NH Posts: 6 Thanks: 0 Thanked 2 Times in 2 Posts	Impeller If it is a Yamaha I would say every 5-10 years. Impellers actually get worse sitting than they do running. When sitting dry the rubber can adhere to the outer housing and when you start it you will pull chunks off. I have serviced many Yamaha 4 stroke outboards and if the pressure coming out of the little squirting hole in the back is strong you are probably good. I would also say if you store it for long run some propylene glycol through a set of muffs before you put it away and that will lubricate it from sticking. -Happy Boating.

09-08-2013, 01:11 PM	#3
secondcurve Senior Member Join Date: Jan 2005 Posts: 2,129 Thanks: 1,358 Thanked 564 Times in 291 Posts	Thanks I plan to have it looked at this year in the off season. It is a Mercury. How expensive of a job is it to have the water pump swapped out. Thanks

09-16-2013, 10:30 AM	#5
LIforrelaxin Senior Member Join Date: May 2006 Location: Texas, Lake Ray Hubbard and NH, Long Island Winnipesaukee Posts: 2,971 Thanks: 1,064 Thanked 912 Times in 539 Posts	I replace the water pump impeller every 2 years in my boat... It is done as part of the yearly maintenance... As Woodsy points out, it is cheap insurance. Having had one fail, as JRC did, it sucks being stranded... I noticed very quickly as the engine started to run hotter then normal and shut things down immediately.... but my day and weekend where over.... __________________ Life is about how much time you can spend relaxing... I do it on an island that isn't really an island.....

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09-14-2013, 12:59 PM	#4
Scott's Yott Senior Member Join Date: Apr 2012 Location: chester nh Posts: 93 Thanks: 54 Thanked 37 Times in 20 Posts	Very easy to do yourself probably cost 20-30 $ about 100-150 for marina to do it

The Following User Says Thank You to Scott's Yott For This Useful Post:
secondcurve (09-15-2013)

The Following User Says Thank You to LIforrelaxin For This Useful Post:
secondcurve (09-22-2013)