Fearless
Well Known Member
Today we were trying to time the magnetos on my 0320-D3G Lycoming. The left magneto is a 4373 impulse model. The problem is the gear on the right magneto. When I bought this engine core with the accessories the right mag had the impulse coupler adapter on that side. The magneto is a 4370 without the impulse coupler. If we put the magneto on with the adapter the gear is behind the internal gear and doesn't engage. If we put the magneto in without the adapter then the gear goes in front of the internal gear and doesn't engage. I believe this engine originally had two impulse mags on it. There is no marking on the magneto gear so I don't know the part number. I need to find a gear that fits this magneto that falls between the two distances. Does anybody know what gears fit this Slick magneto?