Had simular problem,showed max discharge with master on and engine not running,OK when engine was running.Replaced regulator and everything was OK.
[EMAIL PROTECTED] wrote: > --openmail-part-1b25e59c-00000001 > Content-Type: text/plain; charset=ISO-8859-1 > Content-Transfer-Encoding: 8bit > Content-Disposition: inline > > Had a mildly scary incident yesterday and hope the list can give me some > ideas. > I was out for my weekly Saturday morning flight when I suddenly smelled > electrical smoke! No visible smoke. This only lasted for a couple of > seconds (seemed m_u_c_h longer), then the smell would go away. The > ampmeter showed no discharge, actually was showing a slight charge which > seemed normal. > I immediately turned around and headed for the airport. All electrical > equipment continued to work normally. This event repeated itself 3 or 4 > times before I got down. I noticed that the ampmeter would show FULL > charge, the needle actually would bang against the peg when the smell > appeared. Shutting down the radios and transponder had no effect > positive or negative. I kept the master on while trying to trouble > shoot the problem (that was probably not a good idea!). > > After I got it back in the hanger I opened up the cowl and could see no > visible damage nor could I detect any lingering smell. Same for under > the instrument panel. However, when I opened the baggage compartment I > could detect the burnt electrical smell. A brief examination did not > reveal any damaged wiring, but I did not look too closely. > > My theory is that something caused the generator to go to full output, > apparently beyond what it normally should output and this overloaded > something causing the smell. At first I thought that the regulator > would be the culprit but others have pointed out other possibilities. > > The possible defects that have been mentioned are: > 1) Shorted cell in battery > 2) Positive lead from battery intermittently shorting, causing the > regulator to think the battery was low and calling > for the generator to supply current. > 3) Bad regulator > > I am in hopes someone can point me in the right direction and suggest a > diagnostic procedure to follow to track down the problem. > > The fact that it is intermittent will make finding the problem more > difficult I am sure, but yesterday I was very happy that the problem was > intermittent. > > thanks in advance, > Maynard Kealiher > Ercoupe 415-C - N3005H > Centennial Airport, Denver, CO > [EMAIL PROTECTED] > > --openmail-part-1b25e59c-00000001-- > > --------------------------------- > to unsubscribe send mailto:[EMAIL PROTECTED] > _____________________________________________________________ > Want to find the best email lists? Check out the Topica 20! > http://www.topica.com/topica20 --------------------------------- to unsubscribe send mailto:[EMAIL PROTECTED] _________________________________________________________ Enlighten your in-box. http://www.topica.com/t/15
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