337 Voltage Regulators

[LostKiwi]

My airplane came with the 60 amp alternators, and the Zeftronics regulators installed. There doesn't seem to be any adjustment available, but I don't get any weird flickering lights.

I do have a volt meter and dual ammeters. She's pretty stable, has about a 10amp draw with everything turned on.

One observation I've made is that a good charge in the battery seems to make the whole thing run nicer. If the battery is low for one reason or another, the front alternator will output a much higher voltage, to the point where it can kick the rear alternator offline.

If I've been away for a period of time (I travel a lot due: work) I make a habit of pulling the battery and throwing it on charge for an hour or so. A battery minder would probably be a good investment.

Leighton.

[DrDave]

Lostkiwi:

Does the voltage on the front alternator rise or does the current from the front alternator go up?

If it is the latter, which makes more sense, the front alternator is sensing the load more than the rear alternator. This can be resistance in the field circuit, output side, or ground circuit. Please report more information.

Dave