Been building a timer / "mock" magneto as time allows.
The aluminum, round stock bearing cartridge has two
bronze bushings for the rotor / shaft, and a bronze
bushing that the stub of the timer housing rides in.
I’m looking for ideas how to build "stops" for the timer
so it only rotates a set distance for spark advance,
how much rotation is necessary, and also incorporate
some type of "friction" on the timer so it won’t rotate
around by itself while the motor is running.
Keep in mind, that I have to have room for a set
of points in the timer.
Also wondering what type of cam I should grind on the
end of the shaft for my points to operate on.
I was thinking a "D" shape cam would be okay????
The shaft if 5/8", but I’m going to turn it down to
1/2" on the end, to make it work out with the bore
in the timer piece. 1/2" happens to be the size of
the rotor shaft on the Bendix mag I was experimenting with.
I also need to figure out how to hold the rotor shaft
from moving axially.
A long way to go, but it’s a start!
Attachments:
Prepare to be boarded!
