I have a 1991 Stingray with a 3.0L motor. Serial is 0D427773 on the motor. Fully charged group 27 marine battery, went for a 1 hour shake down ride on the 14th of May. Was out all memorial day weekend with zero problems. Then last weekend, towed my friend around on the tube for about 20 minutes. Shut down to yank him in and it wouldn't restart. Battery was acting dead, the motor would crank over about one rotation and that was it ...
Yesterday I pulled the battery and had it load tested without charging. The auto parts store told me the battery was low at 11 volts and needed charged but was OK. The battery, best I can tell, is two years old. (The boat is new to us)
Am I correct in thinking this is the alternator? The guy at the auto parts store told me he would be happy to bench test the alternator for me. Is there anything else I should be looking at? Corroded connections? Bad ground? Should I put a bunch of cinder blocks in it and sink it?
The boat is running awesome otherwise...
Thanks for the help and sorry for being a little long winded!
Yesterday I pulled the battery and had it load tested without charging. The auto parts store told me the battery was low at 11 volts and needed charged but was OK. The battery, best I can tell, is two years old. (The boat is new to us)
Am I correct in thinking this is the alternator? The guy at the auto parts store told me he would be happy to bench test the alternator for me. Is there anything else I should be looking at? Corroded connections? Bad ground? Should I put a bunch of cinder blocks in it and sink it?
The boat is running awesome otherwise...
Thanks for the help and sorry for being a little long winded!