One more question on the magneto for this ’58 10 horse… When I use the timing tool and adjust the points to open at the right time (begin opening as the tool aligns between the two marks on the mag plate) I see that the point gaps are quite different between the two when they get completely open. I can’t find my feeler gauge, so I’ll have to wait to get a new one in a few days, but I can see a difference. Shouldn’t both gaps be the same? Do I need to bend the part of the point that the wires are screwed onto a bit towards the rocker arm point on the one that opens wider to close the gap that’s too wide, or is there a better trick that I don’t know about? When I get the right tool (feeler gauge) I’ll do it again using the multimeter and the timing tool; not just eyeballing it.
Meanwhile, I’m moving over to change the impeller on a ’57 7.5 horse. It’ll be the first time I remove a powerhead for an impeller change. Wish me luck.
Thx
As the flywheel magnets pass over the coil
lamination, the magnet field changes from
north to south. (or south to north depending
on the motor) This is the where you want
the points to open to get the best spark. The
factory gap setting will get you close if you
don’t have a timing tool. Point sets are far
from identical so the gap will be different
when they are set to open at the proper time.
Its when the points open the matters, not the
gap.
Tubs
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A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
