Re: Aeromomentum engines
Posted: Mon Apr 05, 2021 12:11 pm
Unfortunately my wiring schematic is a mess of drawings and mark-ups on the Garmin manual. I highly suggest you look into downloading the Garmin G3X installation manual (here). More specifically focus on looking through sections 26, 30, 33, and 34. That will give you the schematics and the foundation for wiring and programming the G3X for your needs.
I do not believe a sensor to monitor the gear oil amount is feasible at all. There is a sight glass to observe the level of fluid during pre-flight. Of course monitoring oil temperature is the best route because if it is getting too hot, there may be a leak or secondary issue going on. I simply replaced one of the plugs with a 1/4-17 MNPT - 1/8-27 FNPT fitting and a simple single wire VDO 323057 temperature sensor screwed into that (this is the same sensor used on Rotax 912/914 engines). I am using that same sensor for the oil temperature as well. For Manifold Pressure Sensor/Fuel Pressure Sensor/Oil Pressure Sensor I am using the three wire Kavlico sensors recommended by Garmin, click links for prices, SteinAir tends to have them cheaper than ACS. The fuel return is a Red Cube FT-60. The fuel supply I bought new old stock at Oshkosh 2019 for very cheap and it is a Floscan 201 (if I were you and you want to monitor fuel flow, I would just buy two red cubes - much cheaper). The ammeter shunts are the Garmin recommended 100amp kind and also cheapest through SteinAir.
When you get to the point where you are doing the wiring, SteinAir has the best prices for mil-spec wire, Garmin termination kits, and connectors. Just some food for thought. Good luck and let me know if you need anything else.
lakespookie wrote: I wonder if it would be feasable to also add some kind of warning light for low gear oil
I do not believe a sensor to monitor the gear oil amount is feasible at all. There is a sight glass to observe the level of fluid during pre-flight. Of course monitoring oil temperature is the best route because if it is getting too hot, there may be a leak or secondary issue going on. I simply replaced one of the plugs with a 1/4-17 MNPT - 1/8-27 FNPT fitting and a simple single wire VDO 323057 temperature sensor screwed into that (this is the same sensor used on Rotax 912/914 engines). I am using that same sensor for the oil temperature as well. For Manifold Pressure Sensor/Fuel Pressure Sensor/Oil Pressure Sensor I am using the three wire Kavlico sensors recommended by Garmin, click links for prices, SteinAir tends to have them cheaper than ACS. The fuel return is a Red Cube FT-60. The fuel supply I bought new old stock at Oshkosh 2019 for very cheap and it is a Floscan 201 (if I were you and you want to monitor fuel flow, I would just buy two red cubes - much cheaper). The ammeter shunts are the Garmin recommended 100amp kind and also cheapest through SteinAir.
When you get to the point where you are doing the wiring, SteinAir has the best prices for mil-spec wire, Garmin termination kits, and connectors. Just some food for thought. Good luck and let me know if you need anything else.