On Aug 26, 11:18 pm, Al Bundy wrote:
willshak wrote :





on 8/26/2007 10:36 PM zxcvbob said the following:
I took the flywheel off my Tecumseh lawn mower today because the kill
switch wasn't working right and it's under the flywheel. I took off
the nut, pried up on the flywheel, and rapped on the end of the shaft
a couple of times and it popped off. Just like it's supposed to.
Later I went to put it back together and the nut wouldn't fit. I had
messed up the end of the shaft by hitting it with a steel hammer.
Then I messed up the nut trying to get it to start anyway.

I don't think I can straighten it up with a triangle file, and all my
dies and most of my taps are metric, so tomorrow I gotta figure out
what size threads they are from the nut and buy a die for it -- and
hope I can chase the threads. (looks about like 7/16" fine thread)

Now here's the really stupid part: I had a 7 pound block of lead
just sitting on my workbench that I could have used instead of the
hammer. I nice beer-can sized cylinder that would have made a
terrific dead-blow hammer. (Also I should have put the nut loosely
back on before I hammered on it so I could use the nut to chase the
threads if I messed them up a little. Might not have worked though,
cuz the shaft seems to be harder than the nut)

Just putting a penny on the end of the shaft before hitting it with
the hammer probably would have been enough to keep from damaging it.

Dumb, dumb, dumb...

Bob

Next time. before pounding on the shaft, leave the nut on with the top
of the nut a hair above the top of the threaded shaft. Pound on the
nut. There's less chance of damaging the shaft or threads.

Learned that one long ago. If I have to do anything that may compromise
the end, if there's room, I toss a nut on - cutting bolts, threaded rod,
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Thats why gear pullers are around if not put the screw on and hit
gently