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Old 04-22-2009, 05:31 PM
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TallRedRider TallRedRider is offline
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Join Date: Sep 2008
Boat: Used to have 2006 X-45....
Location: St. George, Utah
Posts: 941
Quote:
Originally Posted by CODY_YARBER07 View Post
My stock alternator is just 37 amps. I only had one amp last year and it would run down while it was running. Now I will be running like 900 rms. I got quoted 140 bucks for a 140 amp alternator. Why wouldn't you recommend an alternator change?
Quote:
Originally Posted by brucemac View Post
oh, okay, well then yeah, you're going to need to do something.

make 100% certain you get a marine rated (for gasoline engines) alternator then. non-marine grade alternators are NOT ignition safe and you could go BOOM!
X 2. The cheaper ones are often not marine grade. There are just too many fumes that collect around that engine to risk it. But $800 sounds like a lot more than I have ever heard for an alternator upgrade.
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