Indiana_Pilot
Line Up and Wait
Have you guys ran across Ammeter Bounce?
The plane I am a part owner in is a 1966 Cherokee 140 and has a new Engine and an alternator upgrade that has maybe 200 hours on it. A few weeks ago the mechanic found a "broken wire" on the alternator that caused it not to charge the battery in flight. He fixed that and now shortly after start it bounces then settles down (I think this may be normal)
After flying for a few hours and stating my decent (reducing RPM) it will start bouncing again. then if I blip the throttle and then back down it will stop..
I am thinking voltage regulator. I know it's charging as the battery never dies.
Here is a video of the Ammeter bouncing
https://www.youtube.com/watch?v=4H-27TpcsZU&feature=youtu.be
Here is a video after it settles down.
https://www.youtube.com/watch?v=vo6QVT7kvjk&feature=youtu.be
The mechanic is going to look at it next week when he returns from vacation but I am curious what you guys think. (I have seen alot of videos of Piper aircraft that seem to have this bounce)
The plane I am a part owner in is a 1966 Cherokee 140 and has a new Engine and an alternator upgrade that has maybe 200 hours on it. A few weeks ago the mechanic found a "broken wire" on the alternator that caused it not to charge the battery in flight. He fixed that and now shortly after start it bounces then settles down (I think this may be normal)
After flying for a few hours and stating my decent (reducing RPM) it will start bouncing again. then if I blip the throttle and then back down it will stop..
I am thinking voltage regulator. I know it's charging as the battery never dies.
Here is a video of the Ammeter bouncing
https://www.youtube.com/watch?v=4H-27TpcsZU&feature=youtu.be
Here is a video after it settles down.
https://www.youtube.com/watch?v=vo6QVT7kvjk&feature=youtu.be
The mechanic is going to look at it next week when he returns from vacation but I am curious what you guys think. (I have seen alot of videos of Piper aircraft that seem to have this bounce)