Kiekhaefer’s Early K Model outboards had 3 separate and distinct water pumps. Each of which could be interchanged as a complete assembly on any of the Early Kiekhaefer outboards
thru KE3 and Wizard WG4. Although the pumps do have some parts in common, they differ in many details large and small.
A few photos of Type 1 (16 square hole) oscillator , Type 2 (7 slit) oscillator and Type 3 (3 slit) vane pumps.
Made photos while considering making a short pin required with 1940 version that goes within the cast iron eccentric. A separate shear pin engages notch in hub of Type 1 Propeller
Type 2 water pump has a brass eccentric and is somewhat different in other respects.
The 16 square hole 1940 pattern water pump has a cast iron eccentric with a slot that requires a pin short enough to engage the slot but not the holes in eccentric which allows the eccentric
to move up or down the shaft. This is needed to allow the gear to bear on the bearing on gear case side of water pump. The short pin is often misplaced ,but, making a new one is just a matter of fit and try…which is what I was doing when making the photos.
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