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I was messing around with this little single cylinder Mercury today,
fixed up the ignition, put the flywheel back on. There’s a tin spacer
that sits atop of the flywheel, and the rope plate sits atop the tin spacer.
It only had one nut that compressed the rope plate, and spacer,
to hold the flywheel tight.
The nut doesn’t actually touch the flywheel. I fail how to see that
a “good thing”.
I tried putting a nut directly on the flywheel, torqued it down,
then add the spacer and rope pulley, and add another nut atop
the rope pulley, but the remaining crankshaft threads were onlyenough for about “half” a nut, and the spacer was loose.
I have no parts manual.
Should there be a steel spacer and a nut, two nuts, or just one nut?
Thanks.
Prepare to be boarded!
Two observations from close study of KB-1A Owners Manual reprint…1) it is difficult to make out all but most obvious detail 2) part 117 Flywheel Nut is only and no washer or lock washer for 7/16 is listed.
I have seen rope plates with imprint of an outside tooth star lock washer, but, that may or may not be factory.. The manual does offer the option of returning your motor Mercury dealer where it will be sent to factory service department for a full rebuild to original condition. Wonder if that offer shill holds.
Louis
1940 Mercury K5 twin with Eisemann 72H magneto used an extension PLUS and internal tooth lock washer. This is a relatively original example so it appears Kiekhaefer Corporation did use them if not on all models.
Louis
Something I found out early in the game is EVERYBODY took their little Merc apart. Few put then back together the same way they found them. Restoration is a two fold problem. first decide what it should look like and second to try to source parts. Sometimes the right stuff is not available. Some projects come to a standstill for lack of critical parts. And sometimes unanswered questions stall assembly. Wico 1329B uses the tin spacer, Eisemann 61K does not. Both are correct for KB-1A. The Eisemann 72H does use the tin spacer. My opinion is Kiekhaefer made a well designed and engineered product that was right as it left factory, but suffered at hands of the well meaning, but, , unskilled. I think of a down on its luck little Merc as an interesting puzzle that can either become what it once was or be part of another.
Louis
Louis, the KB-3 has a Wico 1329 magneto, the KB-1A has the 1329B.
I failed to see any difference between the two.
Of course, the KB-3 has a rewind, and the flywheel has a rope pulley
bolted onto the flywheel with three bolts, and the big bronze cogged
nut for the rewind pawl to engage in.
The bronze nut’s threads are worn, and if torqued down, slips.
Hence, someone put a jamb nut atop of it.
I was trying to think of a way to insert new threads into the big bronze
nut…… probably possible, but not sure of the best way.
On a good note, the rewind seems to work good.
The pull cord handle looks a little ungainly (large), but that’s what
came with it.
The motor is going to get a “time out” until warmer weather then
I’ll paint the tank and rewind, and perhaps de-bug it’s running
issues.
Prepare to be boarded!
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