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#1
02-05-2008, 10:30 AM
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1990 Prostar 351 Pulley squeak
All last season I fought what I thought was a squeaky belt on the front of my 351 - but after changing the belt twice and some belt dressing I believe the problem is one of the pulleys on the front of the block. Anyone else ever have this problem and which pulley should I consider changing first?
Keep in mind it sounds like a belt but its not. It squeaks on startup and for the first few mins the boat is running? It seems once it gets warmed up it stops. any suggestions other than replacing them all? Are there bearings in these pulleys that can go bad? thanks
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KStateSkier "Le ore del mattino hanno l'oro in bocca" The morning hours are the most precious of the day! 
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#2
02-05-2008, 10:31 AM
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is the belt tension correct?
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Quote: Originally Posted by Hoosier Bob She always misses me and when I turn her on it is hard to turn her off! She is MC and she completes me! She is the first ride that wants it as much as I do! 
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#3
02-05-2008, 10:41 AM
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water pump or alternator? Sounds like it could be a bearing or something in one of those.
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Lots of power is good, more is better, too much is just right.  '91 prostar 190
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#5
02-05-2008, 10:48 AM
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The alternator is original so it may be time for a new one anyhow...
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KStateSkier "Le ore del mattino hanno l'oro in bocca" The morning hours are the most precious of the day!
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#6
02-05-2008, 10:53 AM
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Quote:
I second taking a closer look at your alternator. You may have bearing that going south on you. Prostar Rich
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#7
02-05-2008, 11:14 AM
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I think the alternator would be a good start. I'll pull it this weekend and have it tested. I would imagine when I take it to Orielly's and have it tested it will squeak and possibly might be running short.
thanks all!
__________________
KStateSkier "Le ore del mattino hanno l'oro in bocca" The morning hours are the most precious of the day!
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#8
02-05-2008, 11:48 AM
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replace them all...as long as you are working on it you might as well
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This board be a changin... 
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#9
02-05-2008, 12:18 PM
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A couple times in the past, our raw water pump impeller was worn, causing it to squeek and changing the impeller stopped the noise.
 It may be worth a try.
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Charter Member Number 1 Quote: 2RLAKE, At some point in time people need to wake up, remove their cranial intrusion into their own rectal areas, and take responsibility for their own actions.
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#10
02-05-2008, 12:31 PM
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I change my impeller every season anyway. IMO there is no reason not to when its a $28 part and it can just as easily fail anytime.
__________________
KStateSkier "Le ore del mattino hanno l'oro in bocca" The morning hours are the most precious of the day!
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