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Old 11-24-2015, 08:50 PM   #3
koliver
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City: Saltspring Island
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 5,663
Any town of a decent size will have an alternator shop that can set you up. The more pressing matter, is this: you need to replace an alternator, so this is your opportunity to go to a large amperage. a stock 55 amp alt will have an internal regulator, and will effectively charge your start battery ONLY. Seriously, unless you have only the same electrical loads that were on your boat when it was delivered to its first owner, before he added anything at all, you should upgrade to at least 90 amps. You can get a small frame alternator up to 120 amps in the same small frame as your 55 amp alt, so no changes to the damper pulley or to the pullies on the alternator. Then, of course you will need to be sure the regulator is a three stage, "smart" regulator or you are wasting your time.
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