I'm familiar with the Bendix 20, but what's the Slick 20?
At any rate, if you're moving the prop in the current condition, be advised your mag(s) are hot and spark is available to the ends of those leads and whatever is in contact with them. (spark plugs, your elbows, your dog)
If you take an ohm meter and connect it between the p-lead and the case of the mag you will read conductivity throughout the entire rotation which is what i was getting and lead me to believe there was a short in the mag
Tested the theory on a brand new one with the same result
Guess the timing light must sense the induction in the primary winding thus enabling correct timing to engine
If you take an ohm meter and connect it between the p-lead and the case of the mag you will read conductivity throughout the entire rotation which is what i was getting and lead me to believe there was a short in the mag