Farmall H question

JayinNY · Apr 5, 2015

I posted in hear a few years ago about my H stalling after about 20 minutes run time, let it sit it starts back up, then quits. many said it was a bad coil, I replaced the coil, and had the same problem. I was talking to my friends brother and there father has two farmall h, he told me there was something on top of the generator I think he said that gets dirty and you have to clean it may be a regulator? just wondering if anyone could tell me what he was talking about. He said it is under the hood on the right side of the tractor if sitting on it. My H has been sitting in a machine shed for about three years I don't know if the motor seized up or not I'm thinking about pulling it out this spring and maybe selling it? Thanks for any help.

Bob · Apr 5, 2015

The voltage regulator isn't the cause of stalling, then having battery left power to start back up.

If you get back to working with it, clip a neon spark tester on one of the plug wires and verify that it is, in fact, losing spark when it stalls (to rule out any gas flow/tank venting issues).

If it is losing spark with a new coil, the condenser would be the next suspect. Check breaker point gap, as well.

JayinNY · Apr 5, 2015

Thanks, points and condenser are the 2 only things I have not checked, I did check the fuel system, and it was fine. I did new plugs, wires, distributor cap ect
And coil.

John B. · Apr 5, 2015

I have seen debris in gas tanks on tractors after running for a short period of time this debris ends up over the outlet of the tank then it stalls out. When the engine quits then the debris floats off the outlet since there is no demand for fuel. This could be your problem. I just saw that no one has mentioned it. Let us know what you find..

flying belgian · Apr 5, 2015

Make sure the vent holes in the fuel cap are not plugged.

armand tatro · Apr 5, 2015

if THE GAS TANK CAP HAS A BUILT IN FUEL GAUAGE the cork float could be coming apart and plugging the tank outlet stopping the fuel now and again. I have this happen to me and seen/heard about it happening to others. Armand

PJH · Apr 6, 2015

My JD 50 drove me nuts one summer with random stalling. After about three tank draining parties, I finally found a grasshopper leg in the fuel tank.

ohiojim · Apr 6, 2015

a d-17 allis I bought a while back had 2 screwdrivers in the tank....

Icuby · Apr 6, 2015

A customer of mine has a corn cob floating around in his fuel tank on his M,but not creating any problems yet.

Oregon Tractor Jack · Apr 6, 2015

Here is one other thing you might look for, an internal crack in the manifold. My brother inlaw had an AC that acted like that. It would run fine till it got warmed up then nothing. He did all the same stuff at first, new mag coil, cleaned out the tank and the rest. It still wouldn't run when warm. He finally took a manifold off of another tractor and swapped it out, bingo that was the trouble. It's a long shot but give it a try. If you have or know someone that has a spare manifold would be the best test.

GeneMO · Apr 6, 2015

I agree with the vent, or maybe something floating around in the fuel system that gets sucked down an plugs up the fuel outlet or line.

Gene

gbs · Apr 7, 2015

I had a flake of paint get above the needle seat cause the same problem on a super A and after three or four carb surgeries I finally found it

Farmall H question

JayinNY

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Bob

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JayinNY

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John B.

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flying belgian

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armand tatro

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PJH

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ohiojim

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Icuby

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Oregon Tractor Jack

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GeneMO

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gbs

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