slick mag oil seal

[RobertD]

while helping me chase an elusive oil leak on my 0-360, my mechanic has detected what he thinks is a bad oil seal on my right mag.
It's a slick 4370 with about 400 hours on it, and working just fine as far as I can tell.
The oil seal isn't very expensive but I can't tell from the manual I downloaded if I can put in a new one without having all those specialized tools they show.
The mechanic can do this, I'm sure, but I generally like to do this stuff if I can. I've got the mag off and partially disassembled but thought maybe one of y'all can tell me if this is something reasonable for me to tackle before I rip all the way into this thing.

thanks,

[G3i Ignition]

Is your oil leak coming from the inside of the mag housing? The biggest hurdle is removing the gear or the impulse coupler hub; they can be very stubborn even with the proper tools. I have used as a substitute a good heavy-duty 2-finger puller that has been modified to fit into the grooves, like the T-106.