Pedals2Paddles
Cleared for Takeoff
A few questions troubleshooting an electrical problem. Found the battery dead (Gill 25). Removed, recharged, and load tested it. It passed with flying colors. Ok, super. Now why was it dead.
Engine running, 1700RPM, no lights or other loads on, it holds proper voltage and is charging the battery. As soon as I turn on the beacon or the landing lights, it tanks. Voltage drops well below 13 and shows discharge.
Testing the alternator, obviously with everything off, resistance to ground on the alternator field should apparently be 4 ohms from what I've read. I read 34 ohms. Can anyone confirm or deny the implications of this? With the master on, I get the requisite battery voltage on the S and A terminals of the voltage regulator. This is the extent of what I can test that I know of.
So my question is, does this sound like it's the alternator? The 34 ohms sounds like it to me. If so, is it relatively simple to unbolt and replace? Of course it would need to be signed off by an A&P. But the work, I feel we should be capable of doing ourselves. Is it oiled or dry where it bolts in? Gaskets?
Thanks!
Engine running, 1700RPM, no lights or other loads on, it holds proper voltage and is charging the battery. As soon as I turn on the beacon or the landing lights, it tanks. Voltage drops well below 13 and shows discharge.
Testing the alternator, obviously with everything off, resistance to ground on the alternator field should apparently be 4 ohms from what I've read. I read 34 ohms. Can anyone confirm or deny the implications of this? With the master on, I get the requisite battery voltage on the S and A terminals of the voltage regulator. This is the extent of what I can test that I know of.
So my question is, does this sound like it's the alternator? The 34 ohms sounds like it to me. If so, is it relatively simple to unbolt and replace? Of course it would need to be signed off by an A&P. But the work, I feel we should be capable of doing ourselves. Is it oiled or dry where it bolts in? Gaskets?
Thanks!