Posted by LenNH on April 22, 2009 at 18:10:02 from (71.235.191.159):
In Reply to: Hard-starting 15-30 posted by Al in WI on April 17, 2009 at 19:21:39:
Off the wall thoughts: Are the magnets strong? They do weaken with age. Weak magnets = weak spark. A good hot mag and a good impulse should give you plenty of fire for starting. I knew people who thought they had to spin an engine to get a hot spark, but I think they were wrong to do this with a mag that had a good impulse, because when the coupling releases, it really spins the armature around. On the Fordson, which did not have an impulse, you had to give it a good whirl to get a good spark, and maybe that's where people got the idea of spinning a motor. That's also where they got broken arms when they spun and pushed down on the crank just before the engine decided to kick back. I don't know if this is ever a problem, BUT....if the mag was not well grounded, the current returning through the engine would have a poor path. Nice shiny base and support bracket? Maybe the ground is through the coupling, so I could be off base. Just thinking out loud, and somebody who deals with these things more than I do anymore can tell me what I'm full of (nicely, of course).
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