I continue to have problems with moisture accumulation inside the distributor cap of my 1938 ACB. I can crank it until my arm falls off...but if there is just a little moisture in the distributor cap, it will not fire until I remove the cap and spray a little WD40 and allow it to dry for a couple hours. The distributor cap is only a few years old, and I seal it onto the magneto housing with silicone. Is there anything else I can do to prevent this moisture problem? It seems to be worse in hot, humid weather when I mow .
Also, to reassemble the distributor cap to the magneto housing, my owners manual says the “marked” tooth of the rotor pinion must mesh between the two marked teeth of the distributor gear at a point marked “C”. Is the “marked” tooth of the rotor pinion the dog-ear tooth?
My distributor gear actually has one tooth marked “A” and the adjacent tooth marked “C”, so I attempt to get the dog-ear tooth of the rotor pinion to mesh between tooth “A” and tooth “C” of the distributor gear. Is this the correct position? Problem is, as you place the distributor cap onto the magneto housing, you lose sight of the distributor gear and rotor pinion...so I am never quite sure if I have meshed them properly. Does anyone have any to tips to make this process easier for an amateur like me?
I really appreciate your help.