Farmall 100 starter problem? Fixed!

tired 8n

Member
I want to thank everyone who responded to my "starter problem" for my Farmall 100. I tried most of the suggestions to no avail. I ended up pulling the starter and in so doing found the spring retaining bolts were loose. I then pulled the armature/core out of it's casing and found the brushes and the armature core were filthy with a gooy goopy , gummy substance. I don't know how it was able to make enough contact to even turn it over once! I cleaned up the armature and emory clothed the works and put it back together. (Boy, what a pain that was! Trying to keep the brushes wide enough to slide the core down in was a challenge. My wife, who was "HELPING" only argued with me three times dring the 1 1/2 hours it took to 'get that starter back together.. I must admit it was her idea that worked. We used grape ties to hold back the brushes while we slid in the core and then cut the ties and pulled them out) Anyway, I put the starter back in and the tractor started right up

So I want to thank you all for the info/help/suggestions that you supplied!!!!!! tired 8n
 
there is a trick to keeping the brushes open. you insert the brush spring behind the brush with the brush sticking out. this holds the brushes out. then when armature is in place use an o ring pick and put the spring back on top the brush where it is to be. takes about two minutes to put the armature in.
 
was going to say that checking batt. volts does not verify that the batt is good, you need to load test it to check the amps. you can buy a load taster at any auto parts store for 40- 50.00. on a new batt. you load test for 10 seconds and the amps should not drop below what the batt is rated for on batt. sticker. for example a 750 amp batt. fully charged has to show 750 amps after 10 sec.
 
Too many people try to put the armature into the barrel with end plate on. That is backwards. Put armature into drive end, barrel over armature and then put end cap on with brushs. Just takes a screw driver to lift one brush at a time and slip her together. Then you attach field leads to brush holder.
 
Some starters you can push the brush in and position the spring along side the brushes then when together reach in with hook tool or wire and position the springs faster than it took me to type it.
 
(quoted from post at 04:45:47 04/03/15) I want to thank everyone who responded to my "starter problem" for my Farmall 100. I tried most of the suggestions to no avail. I ended up pulling the starter and in so doing found the spring retaining bolts were loose. I then pulled the armature/core out of it's casing and found the brushes and the armature core were filthy with a gooy goopy , gummy substance. I don't know how it was able to make enough contact to even turn it over once! I cleaned up the armature and emory clothed the works and put it back together. (Boy, what a pain that was! Trying to keep the brushes wide enough to slide the core down in was a challenge. My wife, who was "HELPING" only argued with me three times dring the 1 1/2 hours it took to 'get that starter back together.. I must admit it was her idea that worked. We used grape ties to hold back the brushes while we slid in the core and then cut the ties and pulled them out) Anyway, I put the starter back in and the tractor started right up

So I want to thank you all for the info/help/suggestions that you supplied!!!!!! tired 8n

I had a similar issue with my 200. I bought a new starter 2 or 3 years ago, because the end cap was cracked. Last fall it acted up and would not turn. Pulled it off and the brushes were worn down to nubs and on an angle and the inside was filthy. I actually rebuilt it with the innards from old original starter and it has been doing well.
 
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