Re: Starter problems

Posted by Dan Kelley on April 18, 2002 at 11:11:47 from (216.229.35.91):

In Reply to: Starter problems posted by Dan on April 18, 2002 at 08:10:01:

Starter voltage is another thing to consider. If your starter is not getting a full load of volts, it could be drawing many more amps than necessary. More amps cause more heat. Even the drop of a few volts is enough to heat the starter pretty good. This could lead to burned brushes or fast wearing brushes. On my M, I rewired the starter circuit to avoid this problem completely. I originally had a foot stomp-switch to run the starter, and it always seemed an iffy setup.

Get hold of a Ford (car/truck) starter solinoid. They're like $5 or $10 from any auto parts yard. I made a mounting bracket from angle steel, and bolted the bracket near the starter. Be sure the metal mounting bracket of the solinoid is well grounded. One big terminal of the solinoid goes to the starter. The other big terminal goes straight to the battery +12V terminal. Ignore the "I" small terminal on the solinoid, if it has one. Run the "S" small terminal of the solinoid to a fairly big momentary push-button switch or the start terminal on a key switch. The other end of the push button should go to the +12V terminal. Make sure nothing is going to short to the frame of the tracter, and you're done.

This is a VERY VERY reliable setup, and will last years and years. Its as reliable as dirt. Many Fords went to the crusher with the original solinoid still in place. I would recommend this modification to anyone, even if they're not having starter problems.

I left the original stomp switch in place, so I could restore it all if I am ever so inclined. I am not sure if there is a 6v version of the solinoid, and I would hesitate to use this on a 6v system, because of the current (amps) required.

Try it. If starter voltage has been a problem for you, you're likely to hear a difference in the starter. After modification, my starter had more growl to it, and sounded far less whimpy. It was also a more sure engagement of the starter than with the old stomp switch.

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