rjcthree
Well Known Member
I am in the process of removal of the D3000 dual magneto for aN electronic ignition system. There is forum discussion and some electronic ignition supplier discussion that the magneto drive gear has a oil feed port in the crankcase. I have had some reports from people with first hand knowledge of the respective engines that the port does not exist on the H2AD engines they are familiar with. I OH?d mine, and I simply don?t recall. I can say the Lycoming OH manual and oil galley diagram does not show a feed to the magneto drive gear bushing or cavity.
I?m asking this group for a couple things. First, have you personally seen an oil feed to the mag drive on an H2AD, or have you seen a case without it? Second, If you actually seen one, what direction did it come in from (top, bottom, back, etc)?
I have removed my mag drive gear, and using a direct inward look, I do not see an oil feed hole. I will look for a hole with a right angle reflector on a cheapo boroscope when I get back to the hanger. I may also low tech probe it with a chunk of copper wire.
I?d appreciate any insight anyone has to offer.
I?m asking this group for a couple things. First, have you personally seen an oil feed to the mag drive on an H2AD, or have you seen a case without it? Second, If you actually seen one, what direction did it come in from (top, bottom, back, etc)?
I have removed my mag drive gear, and using a direct inward look, I do not see an oil feed hole. I will look for a hole with a right angle reflector on a cheapo boroscope when I get back to the hanger. I may also low tech probe it with a chunk of copper wire.
I?d appreciate any insight anyone has to offer.