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water pump impeller
#10629111
02/19/15 01:37 AM
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Joined: Aug 2013
Posts: 228
RickS
OP
Outdoorsman
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OP
Outdoorsman
Joined: Aug 2013
Posts: 228 |
How often do you change yours? I usually do every other season. I have a Mercury 150xr6.
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Re: water pump impeller
[Re: RickS]
#10629119
02/19/15 01:39 AM
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Joined: Dec 2003
Posts: 36,424
Allison1
TFF Guru
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TFF Guru
Joined: Dec 2003
Posts: 36,424 |
Every time my motor goes below 14 lbs at full speed. Mercury's minimum is 12 but I like to see it higher. Sometimes as short as a couple months if I run it in mud.
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Re: water pump impeller
[Re: RickS]
#10629189
02/19/15 02:08 AM
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Joined: Mar 2008
Posts: 2,628
brandon f.
Extreme Angler
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Extreme Angler
Joined: Mar 2008
Posts: 2,628 |
Is it a hard thing to do? (new boat owner here)
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Re: water pump impeller
[Re: RickS]
#10629234
02/19/15 02:25 AM
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Joined: Mar 2014
Posts: 3,910
Topwater2
TFF Team Angler
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TFF Team Angler
Joined: Mar 2014
Posts: 3,910 |
My first boat (2003) Merc hasn't been change and still running strong. My 2012 hasn't been changed either at this point. Don't know if I want to tackle it on my own when I decide to have it changed.
FishKen
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Re: water pump impeller
[Re: RickS]
#10629353
02/19/15 03:12 AM
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Joined: Jun 2011
Posts: 2,235
Jimfishes
Extreme Angler
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Extreme Angler
Joined: Jun 2011
Posts: 2,235 |
Was told rule of thumb is every two years unless ran in brackish/salty water and then every year best. Youtube changing the impeller, you will see how easy it is to do yourself.
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Re: water pump impeller
[Re: RickS]
#10629446
02/19/15 03:50 AM
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Joined: Aug 2007
Posts: 4,591
stick steering
TFF Team Angler
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TFF Team Angler
Joined: Aug 2007
Posts: 4,591 |
Every other year, its cheap insurance,and no ,absolutely no dry cranking, ever
Last edited by stick steering; 02/19/15 03:51 AM.
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Re: water pump impeller
[Re: RickS]
#10629496
02/19/15 04:10 AM
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Joined: Oct 2012
Posts: 1,925
smooth move
Extreme Angler
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Extreme Angler
Joined: Oct 2012
Posts: 1,925 |
i go with the pressure rule. as long as i'm gettin 15+ lbs, i don't worry. this one i have now is 6 yrs old and still pumpin. i really believe that sitting for long periods of time is the worst thing for a impeller. if you use the boat regularly, they'll last a lot longer. JMO.
es le bon ton roulet
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Re: water pump impeller
[Re: RickS]
#10629949
02/19/15 02:04 PM
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Joined: Aug 2013
Posts: 228
RickS
OP
Outdoorsman
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OP
Outdoorsman
Joined: Aug 2013
Posts: 228 |
There not really hard. But I wouldn't say the easiest thing if that makes any sense. Just take your time and have a helper. Two key things are lining up splines in shafts going into flywheel at top and the shifter coupler connection. Best way I've found is to have motor cover off and if it doesn't want to go up have someone rotate flywheel a bit then you'll fill it align and come up as you put upward pressure. If you don't hang an OEM Mercury manual I would get one. It's a must have if you plan on doing your own work.
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Re: water pump impeller
[Re: RickS]
#10630262
02/19/15 03:41 PM
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Joined: Jan 2015
Posts: 81
Offshore Cowboy
Outdoorsman
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Outdoorsman
Joined: Jan 2015
Posts: 81 |
If you acquire a new to you boat, the very first thing you should do is to replace the impeller, or at the very least inspect it. It is not only about moving water, it is the residue and pieces of rubber from an old or worn/damaged impeller obstructing or clogging everything up. When it comes to pump impellers, if you wait until it needs to be replaced, you waited too long.
Saying something wrong a thousand times doesn't make it right- Unless your a liberal.
There are views, there are opinions and then there are the facts.
Ignorance is bliss until it bites you in the a**.
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Re: water pump impeller
[Re: brandon f.]
#10631442
02/19/15 11:22 PM
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Joined: May 2013
Posts: 955
JoeFriday
Pro Angler
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Pro Angler
Joined: May 2013
Posts: 955 |
Is it a hard thing to do? (new boat owner here) No, not really. There are a ton of YouTube videos showing people doing it. Watch as many as you like to see if you are comfortable doing it. Go slow, take pics as you pull things apart, change it, and put it back together. One of the videos recommended a very light coat of marine grease inside the housing so that it was lubed on initial start-up after the change. I followed that advice. I can tell you having one of the Black and Decker workmate tables helps. You just open it up and the skeg goes right between the two pieces and it holds it steady. For schedule, I'll follow an every other season one whether it needs it or not. Cheap insurance, and in my younger days I didn't know what an impeller was and burned up a 50 horse. Lesson learned.
Last edited by JoeFriday; 02/19/15 11:24 PM.
This space for rent
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Re: water pump impeller
[Re: RickS]
#10836738
05/12/15 01:27 AM
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Joined: Mar 2009
Posts: 825
skins84
Pro Angler
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Pro Angler
Joined: Mar 2009
Posts: 825 |
I replace mine every year. Probably the best "just in case" money you'll ever spend on your boat.
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Re: water pump impeller
[Re: RickS]
#10836815
05/12/15 01:47 AM
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Joined: Aug 2008
Posts: 8,500
bigtexnick
TFF Celebrity
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TFF Celebrity
Joined: Aug 2008
Posts: 8,500 |
I agree with everyone else that you'll want to swap impellers more often than not, i.e. every 2 years max. On the other hand, I just changed mine and it was at least three years old; but the old one was in near perfect condition (see pic here). So those things are pretty tough. I rarely dry start the motor and avoid running in muddy water.
--Nick
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Re: water pump impeller
[Re: RickS]
#10836844
05/12/15 01:58 AM
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Joined: Jan 2015
Posts: 2,210
RangerBass21
Extreme Angler
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Extreme Angler
Joined: Jan 2015
Posts: 2,210 |
On mercurys you're suppose to replace them every year.
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Re: water pump impeller
[Re: RickS]
#10837371
05/12/15 11:33 AM
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Joined: Apr 2011
Posts: 1,526
DFW-fisherman
Extreme Angler
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Extreme Angler
Joined: Apr 2011
Posts: 1,526 |
On my Merc 150 Optimax - it must be replaced every two years, or your in trouble! For some reason the rubber deforms quickly and even looks almost new - but it wont build pressure sufficiently. Cheep insurance is to replace it.
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Re: water pump impeller
[Re: RickS]
#10837423
05/12/15 12:15 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
There is no set time. Too many variable's. Good insurance. Guys that fish a lot= every year, others every other year. Watch your water pressure.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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