Re: Johnson HD-15 Magneto issues

[Buccaneer]

I put the flywheel back on the HD-15 (after cleaning up the grounding
plate spring and epoxying the bakelite plate back in).
My "open air gap" spark tester was set about 1/4".
Spark looked pretty good, so I increased the gap some
more, then no spark. Had to go back down to 1/8" ish
before I’d get spark again.
Tried running it in test barrel. Longest run I could get was
about 20 seconds.
Finally pulled it out of the barrel and on the workbench
vise, via a 2×4. It started up and stayed running, but
it sounded like it was missing. Didn’t bother try tuning
out of water, only ran about 30 seconds.
May take the prop off and try in the test barrel tomorrow.
It had 62 and 64 psi before I took it apart. I installed new
rings and tightened up the crankcase. Not sure if the compression
has improved at all with the new rings, but they were much
"stiffer" than the old ones.
Crankcase halves were sealed with sealer as per the manual.
Hopefully I can get it running long enough for you’ll to listen
to it run, as I’m running out of things to try. The coil "ohms out okay",
but I don’t have another coil to try, nor a proper tester to check the old one
for bad windings. This one may sit quietly on the rack,
never to see a lake again! 😮

Prepare to be boarded!