Originally Posted by swjohnsey
New one is only $50, rebulit half that.
The "new" alternator may actually be an off-shore reman or clone. It is possible to get good service from these remans or it is possible to get a real clinker with sketchy workmanship. If you have a local alternator shop my first choice would be to have them look at the alternator and replace anything needed. It is important to have reliable bearings.....bad diodes might keep the alternator from charging but bad bearings can potentially result in bits and pieces of alternator in the engine compartment or a slung belt if we are lucky.
I've been using "1977 Honda" alternators (14184) in my RV-6 for twenty years. I've had three....one of which ate the bearings in a couple of years, the other two giving good service (currently flying the third one). But anecdotal evidence seems to indicate a possible decline in reman quality the past few years.