Posted by John B. on May 25, 2009 at 20:06:33 from (38.114.64.218):
In Reply to: Re: TRACTOR SPARK PLUGS posted by Brian Jasper co. Ia on May 25, 2009 at 19:57:04:
Some magnetos have an advance don't kid yourself. If you ever seen a mag run on a test bench you would see it in person like I have.
The impulse is only there to give the mag a quick spin when the engine is being cranked at low rpms. If the mag didn't have the impulse at this low rpm it would not create a spark hot enough to jump the plug gap.
The International F4 & F6 mags had a manual spark advance.
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Today's Featured Article - Field Modifications (Sins of the Farmer) - by Staff. Picture a new Chevrolet driving down the street without it's grill, right fender and trunk lid. Imagine a crude hole made in the hood to accommodate a new taller air cleaner, the fender wells cut away to make way for larger tires, and half of a sliding glass door used to replace the windshield. Top that off with an old set of '36 Ford headlight shells bolted to the hood. Pretty unlikely for a car... but for a tractor, this is pretty normal. It seems that more often than not they a
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