KD4 usually have Eisemann 72 H magneto although I have a parts posterss for KD4 and KD3 that show a part which appears to be
adapter to allow use of a Bendix magneto, I have not seen either the
part or a KD4 with Bendix magneto, but, I have lived a sheltered life.
KF3 had mostly Bendix magnetos, but, last run had Phelon.
Several years ago a KF3 powerhead was on ebay and it had the
Phelon magneto…kind of a rare magneto with unique cam and flywheel
KD3 could have either Eisemann or Bendix magneto, however, if
recall rightly that would require a different crankcase casting unless
the adapter was actually manufactured and used.
Part No. M 10 147 on KD4 parts poster
Part No, M 10 148 on KD3 parts poster
Louis
KD4 and KD4S were 11 cu in 6hp twins based upon prewar Kiekhaefer
twins sold under Mercury and Wizard brands. Mercury KD4S was replaced by KE4 later renamed Mark 7. Bore, stroke and displacment
remained the same but power output increased to 7 1/2hp.
An unknown number of first production run of KE4 were built with KD4
type rods,pistons,cylinders and water jackets. They did have the improved reed block and crankshaft as well as a new design tower gear case and water pump assembly.
A point of interest to me is how common are the KE4 motors made with a mix of KD4 and KE4 components?
Easy way to tell is does your KE4 have KD4 upper water jacket with a
fabricated steel adapter to link water jacket to fuel tan ring.
I would appreciate hearing from other who have hybrid Mercs.
Louis
