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Re: HELP!! Still can't find problem!!
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Posted by captaink on May 02, 2005 at 09:13:04 from (66.115.214.56):
In Reply to: HELP!! Still can't find problem!! posted by Granger on April 29, 2005 at 23:05:56:
In addition to everything else said here, were the ends of the starter field housing, brush end cap, and nose cone wire brushed until they were shiny and free from rust? Current flows from the battery though the switch (or solenoid) to the copper terminal on the starter fields to the brushes, through the armature, and then back out the brushes through the end cap, field housing, and nose cone to the ground where the starter bolts to the tractor. Rust in any of these joints will impair the flow of electricity, slowing down the starter. As others have stated, the tractors were designed to start on 6-volts. By the way, electrons (electricity) flow on the outside circumference of a wire only, not the entire cross section. That is why braided battery ground cables and fine stranded battery cables transmit electricity better than larger stranded cables. However, I have a 1950 M, bored, fire-crater pistons, and live hydraulics. My dad FOUGHT with the 6-volt system tried the 8-volt batter route with limited success, and he was a mechanic that worked on 6-volt systems for a living during WWII. Finally, FINALLY, I talked him into trying 12-volts. Night and day difference! After that initial start, he wouldn’t hear of going back to 6-volts. NEVER! The 12-volt system allowed him to put brighter lights and more of them on the mounted picker and made it much easier to see at night in the winter doing loader work. I see both sides. For the restoration purist, 6-volt is the way it came from the factory (also with low compression heads and flat top pistons) and worked fine. For functionality, and lower frustration, 12-volt will spin it over faster, have more “tolerance” for bad connections (if you compare electricity to water, volts = pressure so 12 volts will push electricity though a poor connection easier than 6 volts) and usually give quicker startups. The 6-volt starter will perform and last as long if not longer on 12 volts as long as it is used just like if it was on 6-volts. I guess you have to decide which is better for you.
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