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Author Topic: Raw water pump install  (Read 4896 times)

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Offline Mike Harry

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Raw water pump install
« on: July 19, 2012, 10:34:50 AM »
OK, so here is what I've got going on...... I FINALLY got one motor re-ringed and put back together and am almost ready to drop it in the boat but I have one question.

Since I built the last motor and put it together I have had 2 raw water pumps. 1 was the original (or so I believe) and the other is a brand new one I purchased (entire unit, not just a kit)

Both units when installed would move around quite a bit. They were wearing out the rubber grommet that is in the bracket mounting hole very quickly.

I don't like the fact that it moved as much as it did and the mounting plate on the raw water pump doesn't self align (the holes are alot larger than the bolts so there is room for movement). Any ideas on how to align this thing so it isn't moving all over the place and I can finally get a steady smooth pump on the front of my crank? Am I missing something? are there supposed to be plastic sleeves or something in the holes that I don't have?

thanks in advance......
Mike
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Offline RonT

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Re: Raw water pump install
« Reply #1 on: July 19, 2012, 01:47:43 PM »
Mystery solved over the phone.
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Offline Mike Harry

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Re: Raw water pump install
« Reply #2 on: July 20, 2012, 05:41:37 AM »
Ron T helps again! Thanks again Ron.
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Offline Joel

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Re: Raw water pump install
« Reply #3 on: July 20, 2012, 08:30:25 AM »
What exactly was the problem anyway?  Inquiring minds wanna know    ;)
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Joel - Columbus, OH - 1991 Advance

Offline Mike Harry

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Re: Raw water pump install
« Reply #4 on: July 20, 2012, 12:29:15 PM »
My boat equaled garbage when I purchased it.

Crank pulley was so rusted I went to blast it  so I could powdercoat it and got swiss cheese

found a set of pulleys...... and installed the raw water pump, it wobbled very badly

purchased a new set of billet aluminum pulleys for this go round

trying to figure out how to center it properly because the bolts are one size and the holes in the pump were much larger. Turns out that the original pulley had pressed in raised areas that centered the water pump which my new automotive style pulley does not have.

Basically Ill need either shoulder bolts or sleeves. I got some brass sleeves today that work perfectly, just had to cut down the length a bit, all is right with the world once again (except I have to mill about 1/16th of an inch out of the center of the pulley so the pump will fit inside.) Just pieces  to the puzzle, thats all.
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