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Sniffle Valve and Ignition Harness

This entry was posted in Firewall Forward Powerplant on by

I spent way more time on this work than you might think. The magneto has been irksome since day one. It didn’t have a plate for the ignition harness. I had to procure a used one. Because it is a modification to the dual magneto accessory case… it doesn’t have an exact ignition harness you can order. So I ordered this experimental one from aircraft spruce. The instructions for attaching the ignition leads to the plate are crappy. And with the setup, not really feasible. I had to give careful consideration to how I would connect these leads, and how I would route these cables. Sniffle valve installation on the other hand was quite simple. 

GEA24 Wiring 2

This entry was posted in Avionics Electrical on by

Oh man. The GEA24 has 4 connectors. The ElectroAir ECU has 2. All of them in a small hard to reach area all the way down by the rudder pedals. Wires coming from the panel down needed to be terminated with the appropriate length and routing. The connectors going to the FWF were much easier. Because I planned to terminate those and trim to length on the FWF end, I was able to build most, but not all, of the connector connections out on the bench, and then move the wire into the footwell and plumb the wires through the firewall to the engine. Still, this wiring work was brutal. With the spar digging in my back, limited room to move, my arms quickly got tired, my neck ached, and my back hurt. I had to take breaks every so often, and the work moved excruciatingly slow. 

Radio Transmit Troubleshooting

This entry was posted in Avionics Electrical on by

Recently I’ve been firing up all the avionics systems and testing everything that I could. This included testing receive and transmit on both radios and with both headsets. Turns out I can’ transmit on the pilot’s headset. Whoever installed these connections, clearly messed something up. Sure enough, upon inspection, I had reversed two wires. The crazy thing… You can see where I had them correct, and then reversed them. So somehow I had them installed correctly, got confused, reversed the two wires into the wrong position and completed the installation. Regardless, I fixed the connection and all is now working with both radios and both headsets!!