I have an older 120 amp HEHR Powerline alternator
on a Westerbeke
58 in a Pearson
424. Since we bought the boat
in 2016, the alternator
belts have given us trouble. The alternator is armed out on the side of the engine
(see pic) in a way that makes it very hard to tension the belts properly.
We often would have squealing, the smell of burning belt, and our tachometer not working until it seemed the belts would finally "catch up" to engine
speed. I have tensioned and replaced these belts 3 times now. It would resolve the problem for a short while, then it always returned.
Two days ago the squealing stopped, battery charging
stopped, and our tach stopped working. I removed the alternator and found that the positive bolt that the big red + wire connects to was loose inside.
I opened the alternator, used washers to reseat the bolt, and electrical
tape to insulate the bolt from the housing (see pics) with guidance from the manufacturer.
I reinstalled the alternator and now we seem to at least have voltage (batteries perk up to nearly 13 volts with the engine at idle) coming from it again, however my tach still does not work
, and the belts smell like they're burning - even though I tensioned them to 1/2" deflection.
I guess I need a new alternator and a new set of belts (again). Just want to hear the forums
ideas for what to do though because I feel like I'm chasing my tail with this thing.
Got a quote for a new alternator from the very helpful folks at HD Powerline and I'm looking at about $850 for a new one.
Would love to hear any thoughts from the knowledgeable people on this board.