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Ignition pb on 582

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Renaud

Joined: 24 May 2007
Posts: 9
Location: France

Posted: Fri Jan 11, 2008 10:47 pm Post subject: Ignition pb on 582

Hi,

I have been trying to solve a problem of ignition on my 582 (on Kitfox IV), but I am not fully satisfied so far. Maybe one of you already had the same type of problem and could help me?



Here is my story: I detected a failure of ignition on one of the circuits during descent (only), when the engine cools down. In these conditions, with only this circuit on (let's call it circuit 1) , sometimes engine does nor run smoothly, and sometimes even stop. With the other circuit on only (circuit 2) everything is fine.

I inverted the two external coils (the black electronic blocs) to identify the source of the problem. Same result, circuit 1 still fails, which means the problem is in the stator or the position sensor.

I then inverted the connections of the two sensors, to identify if the problem is in the stator or in the sensors. Guess what, now everything is running perfect on circuit 1 and on circuit 2! Ambient temperature was a little warmed for this last test, but apart from that nothing else was changed.



I was suspecting a bad position adjustment of one of the sensor (gap between the sensor and the rotor), but now I am not really sure. Now everything runs fine, but I don't know why!

Of course, to have access to inspect the stator and sensors, I would need to remove completely the engine from my Kitfox...



Has any of you already had this type of funny story?



Thanks in advance and happy flying in 2008!



Renaud

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Renaud

KitFox IV - 1200. Rotax 582.

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Sat Jan 12, 2008 3:24 am Post subject: Re: Ignition pb on 582

Renaud, 



Sounds like you had a bad connection ? 



Engine removal takes less than a hour.

Great time to replace all hoses as well.

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Renaud

Joined: 24 May 2007
Posts: 9
Location: France

Posted: Sat Jan 12, 2008 12:59 pm Post subject: Re: Ignition pb on 582

Dave,

Yes possible, but when I inverted the coil I re-did all connections between stator + sensors and coils, and still had the same pb. I really suspect ambient temperature to influence. I know a guy here who had a similar problem, only in a given range of temperature. It was bad adjustment of the gap between sensor and rotor. I will try again when temperature here will go done, 0 to 3°C.

If I remove the engine now without knowing where the problem is, I am afraid I won't be able to detect what is wrong?



I will let you know. Thanks for your help.

Renaud

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_________________
Renaud

KitFox IV - 1200. Rotax 582.

Renaud

Joined: 24 May 2007
Posts: 9
Location: France

Posted: Mon Jan 14, 2008 1:22 pm Post subject: Re: Ignition pb on 582

Hi,

New test yesterday, problem appeared again. Now I can say the problem comes from the sensor. I will remove the engine and check gap between sensor / rotor.

Renaud

- The Matronics Kitfox-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Renaud

KitFox IV - 1200. Rotax 582.

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