Hi Ken,
I had a similar over-voltage problem last year and because I have the
"Crowbar" mod fitted it kept activating the over-voltage circuit breaker.
As soon as I replaced the regulator, the problem stopped. The over-voltage
was intermittent.
Best wishes,
William
----- Original Message -----
From: "kenneth b. carpenter" <kbcarpenter@comcast.net>
Subject: Europa-List: over-voltage from alternator
<kbcarpenter@comcast.net>
>
> I have experienced the alternator over charging the system. When revving
up the engine, it goes up to 17 volts. Drop back to idle and the voltage
drops back to 13.5V. It has done it rarely for a moment or two when first
starting the engine. Then it did not recur in flight. Yesterday it went up
to 17V. while in cruise. I reduced the RPM to about 4500 and the voltage
went back to normal. I returned to the field with no detectable harm to
anything. All the electronics will take 12-24V so they were not harmed.
The overvoltage did not last long enough to harm the battery.
> Anyone else had this problem? Do I need a new voltage regulator? I plan
to check connections on the battery and such to see if something is loose.
> Ken Carpenter
> N 9XS 914 Mono
>
>
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