Second PP 60 amp alternator failure on RV-10
First one that came with the kit failed at 191 hrs. Voltage down to 12.8 from 14.2 VDC. Whining over intercom below 1200 rpm. The STATOR was not secured properly with epoxy coating, hot glue or sealant. No star washers were used under screws. This caused the the stator wires to break down deep, which are unrepairable. Replaced stator for $80. Keeping this alternator for a spare. Prop was balanced (PP liked to blame all of their broken stator wires on vibration or heat), no #1 exhaust heat shield and no cooling blast tube used since new. No problem with rectifier, regulator, oval 3-pin connector or brushes. No signs of overheating.
Second one has now failed at 45 hrs. Voltage down from 14.2 to 13.6 VDC. I will let you know what I find on that one. Time for a change and I won’t be spending $600-$800 anymore on $100-$150 alternators. 3 pin oval connector replaced as part of my troubleshooting. No change. Replaced 9 year old PC925L just in case. No change. Replaced 3 yr old, 3rd PC680 aux battery. No change.
Good judgment comes from experience, and a lot of that comes from bad judgment.
Last edited by Wayne Gillispie : 01-18-2020 at 10:14 PM.