Farmall 100 Died and Now Wont Start

RHeimiller · Feb 21, 2011

here"s my situation. i have a farmall 100 that seems to be stubborn and doesnt want to start. the tractor was converted to 12 volt by my grandfather many many years ago. the starter went bad last summer so i swapped starters with my 6volt super a that isnt running right now. this past fall it was running one day when it just died. it wasnt getting spark so my father the points and condenser, and rotor. he thought it might be the shutoff switch so we changed that too, he likes to just change things instead of testing then changing. that still didnt solve the problem so i decided to get the multimeter out and see when i could find. with my limited knowledge of electronics it seems that power is getting to the distributor but not through it. so i have two questions, one- could the 6 volt starter cause any of these problems? and second- any ideas on what it could be and/or how to fix it? thanks in advance.

oldtanker · Feb 21, 2011

What do you mean to it and not trhough it? If yer getting power to the dizzy and it still wil not produce spark I would suggest cleaning the points with a clean piece of paper. New points can have a oil film on that that will prevent them from working. If all he did was file the points it can be just dirt/filings. If not that check that the poins are grounded on the one side and that the strap from them is connected correctly and not shorted.

Rick

old · Feb 21, 2011

Pull the coil wire out of the center of the distributor cap. Then spin the engine over. If you get spark there then check for spark at the plug wires. Spark needs to be blue white in color and jump a 1/4 inch gap. If you get no spark take the cap off the distributor and with the switch on open and close the points by hand. You should both see and hear a spark there. If no spark check the gap and also clean the points. If after cleaning the points you still do not have spark make sure there is not something shorted out inside the cap area.

bobs old iron · Feb 22, 2011

if the points are opening/closing OK, pulling the coil wire out of dist cap, and no spark going into cap, possible the coil might have gone bad. depending on how new/old coil/tune-up is. coil laying flat?, they has a tendency to go out, also, did you test wire to coil when points open/close, using ohm's meter.

SadFarmall · Feb 22, 2011

Changing to a 6 Volt starter motor will have no effect whatsoever on the ignition system. Moreover, the 6 Volt starter will not be harmed by running on 12 volts.

Always check the obvious first:
1). Is it getting fuel?
2). Is there water in the fuel?
3). Is there spark at the spark plug?
4). Is ignition switch operating? (check for short circuit)
5). Are the coil connections tight (check wire into back of terminal!)
6). Is the breaker point and spark plug gaps correct?
7). Is the ignition timing correct? Check the distributor is rotating as it should.
7). Check that the condenser is not dead.

mkirsch · Feb 22, 2011

If the tractor is truly, honestly not getting spark, and that's not just a "guess," then don't waste your time on the fuel system. All you'll do is mess that up while fumbling around looking for a problem that isn't there.

rustred · Feb 22, 2011

what, died at only 56 years old, when is the funeral? cremation or burying it? was a good little tractor in its day. sad to hear.

holmesw · Feb 22, 2011

If I am understanding correctly, the only thing left to do on the ignition system, would be to replace the coil. They do occasionally go bad, so you might try looking into it.

goodman34 · Feb 22, 2011

check the fuel level.. Or you might have the fuel shut off switch to the off possition.

RHeimiller · Feb 24, 2011

Well after going over it again I found that the wire that runs from the starter to the volt meter was broken where it enters behind the gauges. Now I"m getting spark, just have to charge the battery and give it a try, should be easy from here. Thanks again for the help.

Farmall 100 Died and Now Wont Start

RHeimiller

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oldtanker

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old

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bobs old iron

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SadFarmall

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mkirsch

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rustred

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holmesw

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goodman34

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RHeimiller

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