Quote:
Originally Posted by John-G
Thought I would throw out a couple of thoughts that, thus far, have not been addressed.
Is there filtering on the output of the voltage regulator's R lead? The RV-12 has a 22,000 MFD filter capacitor used with the standard Ducati regulator. Silent Hektik suggests a 33,000 MFD filter capacitor for their regulator. If you don't have a filter capacitor installed now, you may want to consider adding a 33,000 or 22,000 MFD capacitor between the output of your voltage regulator (the R lead) and your air-frame, or better yet, the negative terminal of your battery or common ground point if you have one. If you do have a filter capacitor installed, carefully check the crimp connections and make sure that the capacitor is well grounded.
If the filter capacitor ends up being installed firewall forward, would also suggest you choose a capacitor that has an automotive rating because they tend to be rated for higher temperatures than the standard electrolytic capacitors which are typically around 85°C (185°F). I chose one rated at 150°C (302°F) when I upgraded my electrical system to a Silent Hektik regulator. Easy to find at Mouser.
Consider grounding the engine with a separate ground wire. On my 912ULS engine, I installed a separate ground wire (12 gauge I think) between my common ground point and the engine. There is a convenient unused threaded screw hole on the #3 cylinder head in the vicinity of the water temperature probe.
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I do have this type of capacitor, but it's not between the R-lead of the voltage regulator and the panel (where the R-lead runs to power the panel). I suspect this could be a problem. Do I need a second 22000uF capacitor? Or is this one just not wired in the right position? It's hard to see in the photos, but the R-lead from the voltage regulator goes straight back, through the firewall, and straight to the 25amp fuse which feeds the electrical busses for the panel. Is this possibly putting out a lot of RF? Could I put some sort of filter on it? Thanks guys!
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