I have a 1986 Penn Yan with the 305 ci with mercruiser outdrive and the batteries were not charging so I purchased the best OEM alternator to charge my dual batteries.... Well I pulled the old alternator and the wiring was different from the new alternator....Well I used some common sense and wired it in and mounted it on the engine and she charges like a dream....But of course that was the silverlining on this cloud because I cannot shut the boat off now with the ignition switch.... The old Alternator had two threaded studs on the back side were the new one had one threaded stud and a two pin connection...I wire the positive to the stud on the backside and a purple wire and a red wire to the two pin connection and the ground to a small bolt and screwed into the back of the alternator..... Again this thing is charging awesome....Just does not turn off awesome......Any help would be greatly appreciated..... Thanks....Woody.
P.S.. I unscrewed something that was mounted on the back of the old alternator and it was full of water, probably why it was not charging......That is another story about the water......
P.S.. I unscrewed something that was mounted on the back of the old alternator and it was full of water, probably why it was not charging......That is another story about the water......
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