Roger Lee Posted March 16, 2013 Report Share Posted March 16, 2013 Just a quick FYI, Here is something most never see and most probably never look at from time to time. This is the 25V 22k ohm capacitor that Rotax 912 engines have in place. This one is a little smaller than the average one so if yours is a little taller that's just fine. For the CT guys it is located and mounted to the square tube engine mount bar up above the battery. Inward on that bar about 10"-12" you will see this wire tied to the back or bottom of the engine mount tube. Other 912's aircraft also have them, but you'll need to find where it is mounted. It usually holds up very well, but can have the leads break off from vibration. You can not re-attach these and will need a new capacitor. CPS sells them for about $25. You can and it is much easier to just re-use the broken off connectors. Just use a soldering gun to remove the old solder and the broken off tip from the capacitor. Then re-solder the connectors back on. Put a small 3/8" piece of heat shrink on the connector just like you found it. leave the top 40% or so exposed. When you re-install the capacitor take note that this is POLARITY SENSITIVE. It has a white strip with a negative symbol along one side. That is the ground wire which is a single wire and has blue heat shrink on it from the plane side. The double plug connector is positive. If you swap these two and start the engine you will need to call CPS again and buy another capacitor as it will burn this one up. Just wire tie the capacitor back either to the tubing or to as vibration free spot as possible. This is a very easy job to do. Quote Link to comment Share on other sites More sharing options...
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