Service Manual bases Performance on a point gap of twice what I suggested. Just sayin’. Most of our old KE, KF, KG crank case tops were created to be precisely 3 inches in diameter. The Bendix/Scintilla equipped engines suffered from excess wear of the top mag. mounting flange. The wear is a result of the two friction plugs that pressed on the flange O.D. They kept the mag. in place but eventually contributed to the failure of at least one cylinder’ s ignition. Later 2 cylinder crank cases had the benefit of anodizing to the mag. mounting flange. Darned near as tough as ceramic. So, Phelon magnetos are easier to live with, but if set up properly, Bendix/scintilla magnetos produce slightly higher voltage at the plug, and will operate at substantially higher RPM. R.T.
Ron, do you have any info as to which serial number range would have the anyodized mounting flanges? Or possibly which years would be included? Would love to know!
Thanks!
Scott
