The voltage almost HAS to be fluctuating wildly if the ammeter reading is anywhere near right -- which raises the question, why is it only the fuel readings that are affected? With those amps, the whole system should be flashing on/off... If this is the amperage for the primary alternator... is there a backup alternator involved? Oscillations between primary and backup can be significant if they both regulate to a similar voltage.
Charley Brown Legacy 28V dual alt single batt g900x
On Oct 25, 2011, at 1:01 PM, Dennis Johnson wrote: Hi David, What is the voltage reading during this time? Does the Grand Rapids EFIS Sport record data that you can download and study after a flight? Dennis Legacy 450 hours ----- Original Message ----- Sent: Tuesday, October 25, 2011 4:50 AM Subject: [LML] Problem with Fluctuating Amperage
Any ideas about what would cause my amperage to start fluctuating wildly about 5 minutes into a flight?
It starts out fine after takeoff at 15 amps and then goes to -50 amps for 30 seconds, and then gyrates between 5 amps and -50 amps for a minute and then goes back to normal. It repeats this sequence every 5 minutes.
My fuel gages also go down to zero during this episode and then back to normal.
Is my B&C LR3C Linear Regulator going bad?
(I'm getting these readings from my Grand Rapids EIS engine monitor. It's hooked up to a Grand Rapids EFIS Sport.)
Thanks for the help!
David T.
Legacy RG
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