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Thank you for this information !
I’m now thinking the 2nd motor is probably a KB-1A – On this right side view, it looks like there’s a carburetor bowl, so then it’s the later model with the Tillotson.But I’m also thinking that there were some parts swapped – The carb knobs look like those on a KB-3, and the transom clamp is the heavier duty double screw type from the later motor – So, it will be interesting to look at that serial number tag .
“ID tag on prewar singles is on Port side of leg, while ID tag on postwar singles is on Starboard side.”
Louis, where did you learn this about the ID tags above? That is a really interesting and useful distinction. I took apart the gear case on my kd4 last night and compared the prop shaft/gear to the one from my k1/sea king. Completely different gears! Similar in size but bevels are very different.
I believe the upper of the 2 restored motors is a post-war kd3. The ID plate is on the starboard side and is then consistent with the distinction you point out.
Scott
I have a fair number of prewar and post war singles,one day I noticed tags on KB1 A,(3 examples) KB3 (1 example) 1941 Sea King single (2
examples) plus 3 legs Note 1940 motors had information stamped
into rope plate or in case of Sea King stamped into clamp bracket.
Post war KD3 (1 example) KD3S (4 examples) were checked.
The prewar (1941) all had ID tag on the port side of leg
while the postwar singles had the ID tag on starboard side.
For those not into nautical trivia.
RED LEFT PORT & GREEM RIGHT STARBOARD when facing forward.GEAR SETS for the early K model Kiekhaefers is easy
SINGLE cylinder models have 12 tooth pinion on drive shaft and a 22 tooth gear on prop shaft.
TWIN cylinder models have a 14 tooth pinion on drive shaft and a 19 tooth gear on prop shaft. A bronze spacer and 3 steel shims are
also needed to obtain correct gear lash…critical items often left out.GEAR SETS! 12/22 and 14/19 ONLY!
Same propeller was used on both singles and twins. The different
gear sets gave better match of power to propeller.I have 3 or 4 14/19 gear sets that were badly chewed up because
the shims and spacer were left out and motor was run despite
the noise from gears self destructing.Note: most of my accumulation were LOW price projects.
Some are 90% done and some are not as close to finish line.I have a KB1 A steel tank awaiting delivery arrangements, I think it
could be subject of a photo series as I delve into it.
Louis
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