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Farmall & IHC Tractors Discussion Board

Re: farmall 300u


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Posted by Janicholson on January 25, 2014 at 11:17:11 from (74.60.94.18):

In Reply to: farmall 300u posted by t.murph on January 25, 2014 at 10:33:39:

Well this is not a flame at all, just info.
The tractor is either a row crop tall tractor (Farmall) like an H, or a Utility tractor short wide front (International).
The 300 series of either never had 12volt from the factory.
All were 6 volt, and positive ground.
The starters all work with either 6 or 12 volts with no difference in rotation when using positive or negative ground.
Thus the starter could be the wrong one, or rebuilt incorrectly.
There is a new starter drive that uses a cushion pinion and no big flat wound spring. Much better.
The starter motor must turn the engine Counter Clockwise (from the drivers point of view) thus the starter turns Clockwise from the drivers point of view.
Quite often, the reason a starter fails to engauge is because it is getting poor voltage.
A starter needs 250 amps to slap into action. (in the winter it needs more).
Make sure the battery is charges the cables and terminals are clean and shiny to conduct, and the cales should be 1 gauge at least. Jim


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