I'M having a problem with voltage fluctuations. The needle movement is about 3 times per second for about 2 volts. I changed the regulator and the fluctuations ceased for about 4 hours flight time. Now they are back again. I am not the original owner of the aircraft. I read the first flight article and he had a regulator fail. He installed a VR-166 but had to do some rewiring to make it work.
I got a box or receipts with the aircraft and with it is a drawing of the electrical system that I think is installed. It lists a 1976 Honda Accord 50 Amp alternator and a 177-D510 regulator but that regulator failed on the first flight.
I will have to drop the cowl to see what alternator is actually installed.
Any idea why the voltmeter is showing fluctuations? What regulator should I be using?
I got a box or receipts with the aircraft and with it is a drawing of the electrical system that I think is installed. It lists a 1976 Honda Accord 50 Amp alternator and a 177-D510 regulator but that regulator failed on the first flight.
I will have to drop the cowl to see what alternator is actually installed.
Any idea why the voltmeter is showing fluctuations? What regulator should I be using?