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boat impellars
#1
I recently had my boat winterized and they told me at the boat dealership that volo-penta recommends that the impellar be replaced yearly. Does this sound right to you guys or am I being taken here.The boat is a 2002. I would really like to know what you guys think. And danzilla you seem to be the resident bft boat mechanic so I hope you read this because I value your opinion as well as any others who would like to respond.

thanks
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#2
I believe for older boats like mine it is recommended yearly and the same may hold true for yours. It cant hurt though. Last place you want to find out your impellars toast is on the water
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#3
I havent replaced my impeller in over 5 years!!!! I know that is not good, but I definitely know it needs replaced. I think I will probably do a every 2 year replacement on mine from here on out.
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#4
Every year is a bit much but I guess it depends on how much money you have. Wiperslayer bought his 40 horse new in 1999 0r 2000 and has never changed his. I think as long as you have a steady stream of water coming out the P hole you will be fine. If you want to make sure you never have any problems you could change it every other year but I think you could go every third year without any problems. This is just my opinion and I'm sure you will get a lot the those on this post. WH2
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#5
It also depends somewhat on how much use the motor has had. In silty water you may have to change it more often. That are several factors. In my outboards I changed them when they stopped pumping water very good. In my Johnson trolling motor I never changed the impeller in 9 years. It was still working fine when I sold it. But I never ran that motor very hard ever. Anyway, you get the point. It all depends and I am not sure that replacing it every year will do anything more for you other than cut into your tackle budget.

m
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#6
Koke,

My second to last boat had Volvo AQ130s on it. Depending on use you should change the impellers every year. Volvo's have a different water pick up system than other brands, they are dry prime systems. Meaning the impeller does not have to be submerged to pick up water. On all outboards and most I/Os the impeller sits below the water line. When the engine is started they are already wet. In my Aq's the impeller sat above the water line and drew the water to it. This causes more wear and tear on the rubber since it's running dry, for a few seconds anyway. If your engine is like mine and the water pump sits above the water line, replace it. It's well worth the 50 bucks.
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#7
[size 2]I run a 2000 Volvo 4 cyl.. I was on Pineview one day last year when my impeller flew apart. I hadn’t checked it since I bought it. After that first time experience, I now keep a spare impeller and a shop manual on board. Fred’s Marine and the shop manual recommends to check the condition of the impeller once a year for flexibility and any damage. I would recommend keeping a spare onboard and never let it run dry. The manual also said to put a little lube on the newly installed impeller for the first dry start and prime it if possible.

Life’s a dream when you’re fishing! [/size]
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#8
I would have to agree with everybody here I know that the manufacturers recomend that you change that every year but I've ran mine for several years without a problem I did break down this year and replace mine in my 80hp. I think that for what little they cost and as easy as they are to change it wouldn't hurt nothing to do them every year.

I do my trolling motor every year just because thats the motor that I usually use when I'm in the shallower waters and its more suceptable to getting sand or silty water witch would cause it to wear out. and its a good idea to get into those lower units before summer gets here and check things out.

DZ
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#9
You guys rule! You know everything. I appreciate the responses. The motor is IN/OB 320 hp. I paid a lot of money for this baby and the last thing I want to mess up the engine because I was two cheap to spend the $40-50 to replace it. I guess if you think about it, its pretty good insurance policy and peace of mind. Im thinking doing it every other year(I guess I am cheap) thanks again

koke
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