wingspan99
Active Member
To All:
I was able to fit an alternator from a 1989 Mazda 323 to my Lycoming O-320 E2G which I believe has the standard alternator brackets. It does have a field connector in the back to accept an external regulator, but I am using the internal regulator by connecting the "I" (goes to ignition power) to the large output terminal (which is connected to my battery when the master is on). It is a 55 amp alternator, and is a little bit large, and I had to grind a little of the case down so it would not rub on a cylinder base, and although it barely fits, it fits and works fine, and although it uses a V-belt pulley, I took the much larger pulley off my old "aviation" alternator and put it on, and the belt alignment is perfect with either pulley. I did have to take some of the metal off my pulley's base to get it to fit without binding. They're $70-100 at Rockauto dot com.
-Tom in Colorado
I was able to fit an alternator from a 1989 Mazda 323 to my Lycoming O-320 E2G which I believe has the standard alternator brackets. It does have a field connector in the back to accept an external regulator, but I am using the internal regulator by connecting the "I" (goes to ignition power) to the large output terminal (which is connected to my battery when the master is on). It is a 55 amp alternator, and is a little bit large, and I had to grind a little of the case down so it would not rub on a cylinder base, and although it barely fits, it fits and works fine, and although it uses a V-belt pulley, I took the much larger pulley off my old "aviation" alternator and put it on, and the belt alignment is perfect with either pulley. I did have to take some of the metal off my pulley's base to get it to fit without binding. They're $70-100 at Rockauto dot com.
-Tom in Colorado
