Karl,
Have a look at Rotax Service Instruction SI-25-1997 Rev 8 dated December 12,
2005.
It gives useful information on the trigger coils.
Remi
Hello Rmi,
This sound very promising. My problem is that I can't find any reference to
this trigger coil in any of the manuals or newsletters. What exactly is it
for and whereis it ?
Are you also saying that maybe there is no need to upgrade to the new
starter motor ?
I am just about to order one from Lockwood ($299.-), but maybe I should
wait.
Karl
>From: "Rmi Guerner" <air.guerner@wanadoo.fr>
>To: europa-list@matronics.com
>Subject: Europa-List: kick back fix
>Date: Fri, 24 Mar 2006 21:04:44 +0100 (CET)
>
>
>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 builde!
> rs 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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