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3 answers

it certainly sounds like a slipping belt, and as the other poster mentioned, is often times the alternator belt. to know if that's it, you could tighten the belt a little and see if it goes away, or remove it all together and see if the noise is gone. the alternator creates more resistance when it's under load (like when the battery is not fully charged, from starting, or sitting for a while slowly draining.) so in theory, as the battery gets good and charged up - the squealing should stop.

if it's a different belt than the alternator - it would be good to know which part it's running, and determine if there is abnormal resistance (is the part opperating correctly and the belt is bad, or is the part malfunctioning causing the belt to squeal.) if it's driving the impeller, and there's a problem with it, it could cause overheating...

they sell "belt dressing," and other stuff to prevent it from slipping, but if the problem is the alt belt, i would just pony up the cash to replace it. if you tighten the belt more, there is a chance it could break (this happened on a friend's '87 carver.) at least carry a spare - you don't want the cost/annoyance of being dead on the water!

watch your voltage gauge. when the boat's running above idle, it should be around 14 volts. 12 1/2 volts means it's not charging properly

2007-07-17 10:43:04 · answer #1 · answered by molehunterz 2 · 2 0

there are a few causes of the squeal as you accelerate.
The main cause of squealing are...
1, the alternator belt...( serpentine belt.) which is easily tightened and fixed...
2,the water pump on the engine may be going bad.. That can be expensive... the part alone can be $250 you can do it yourself...
Other squealing... check the oil level too... your oil pump may be be going bad too.. ( hopefully not).
Also check your prop.... I have heard a of a guy locally who paid a fortune... new water pump .. belts engine rebuild and he still had a squeal.... it was the prop hub ... apprently he inner of the hub was going bad.
Good luck with your boat

2007-07-19 10:33:13 · answer #2 · answered by tony b 5 · 0 0

Try tightening the belt on the alternator?

2007-07-17 03:27:01 · answer #3 · answered by Snaglefritz 7 · 0 0

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