Europa-List Digest Archive

Fri 03/24/06


Total Messages Posted: 2



Today's Message Index:
----------------------
 
     1. 12:14 PM - kick back fix (Rmi Guerner)
     2. 12:14 PM - kick back fix (Rmi Guerner)
 
 
 


Message 1


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    Time: 12:14:55 PM PST US
    From: "Rmi Guerner" <air.guerner@wanadoo.fr>
    Subject: kick back fix
    --> Europa-List message posted by: "Rmi Guerner" <air.guerner@wanadoo.fr> Hello all, In order to sort out the kick back problem I experienced with my 912S, I checked the trigger coils gap, as suggested by Andy in Factory Tech Talk. Surprisingly none of them were found to be within the tolerances specified by ROTAX. The specified gaps are between 0,3 and 0,4 millimeters. I measured gaps between 0.15 and 0.25 millimeters. I also found that the trigger coil B =C2=BE was pushed down by the alternator/ignition wiring harness, and therefore it was impossible to adust the gap properly. The fix was to use a ty-wrap attached to the engine mount ring so that the wiring harness is moved up out of the way. I adjusted the gaps at around 0,4 mm and now the engine is starting a lot more smoothly, with no kick back. It is obvious that the engine was delivered to me with this wrong gap adjustment. Adusting these gaps is a time consuming work, as you have to remove a lot of stuff to get access to the back of the engine. Therefore I strongly recommend that new builders check their trigger coils before they hang the engine on the aircraft. Remi Guerner F-PGKL, XS S/N395 monowheel, 912S, 383 hours, installing an Airmaster prop


    Message 2


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    Time: 12:14:55 PM PST US
    From: "Rmi Guerner" <air.guerner@wanadoo.fr>
    Subject: kick back fix
    --> Europa-List message posted by: "Rmi Guerner" <air.guerner@wanadoo.fr> Hello all, In order to sort out the kick back problem I experienced with my 912S, I checked the trigger coils gap, as suggested by Andy in Factory Tech Talk. Surprisingly none of them were found to be within the tolerances specified by ROTAX. The specified gaps are between 0,3 and 0,4 millimeters. I measured gaps between 0.15 and 0.25 millimeters. I also found that the trigger coil B =C2=BE was pushed down by the alternator/ignition wiring harness, and therefore it was impossible to adust the gap properly. The fix was to use a ty-wrap attached to the engine mount ring so that the wiring harness is moved up out of the way. I adjusted the gaps at around 0,4 mm and now the engine is starting a lot more smoothly, with no kick back. It is obvious that the engine was delivered to me with this wrong gap adjustment. Adusting these gaps is a time consuming work, as you have to remove a lot of stuff to get access to the back of the engine. Therefore I strongly recommend that new builders check their trigger coils before they hang the engine on the aircraft. Remi Guerner F-PGKL, XS S/N395 monowheel, 912S, 383 hours, installing an Airmaster prop




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