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Farmall & IHC Tractors Discussion Forum

New problem help

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03-20-2016 17:45:30

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I now have lost all spark on my 51 super A I disconnected the kill switch wire from the magneto still no spark, I removed the cap and rotor and took a look see, nothing jumped out at me, looks fine. I have manuals coming this week. In the mean time any suggestions ?
As always thanks


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John T

03-21-2016 05:48:48

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 Re: New problem help in reply to dave01, 03-20-2016 17:45:30  
FWIW I agree with Bob n Teddy, a typical cause of no spark is the contact points are burned or pitted or mis gapped or even light oxide coated which a good clean/buff/polish or in worse cases a points file can cure. If badly burned or pitted Id just go ahead and replace them while in there.

John T

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gene bender

03-20-2016 20:47:30

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 Re: New problem help in reply to dave01, 03-20-2016 17:45:30  
When was the last time the tractor ran sitting around parts don't go bad but the points can get a film and not fire first I would clean them before throwing money at new parts I have mags for many yrs they just don't seem to fail so your problem is something simple clean both ends of coil wire is another good place to check then moisture in cap and coil cover like I asked when was the last time engine has ran.

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03-20-2016 18:11:55

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 Re: New problem help in reply to dave01, 03-20-2016 17:45:30  
Copy this link and paste it in your browser and you will have the mag service manual right in front of you!


The MOST LIKELY culprit is the breaker points, cleverly hidden behind the rotor and the gears that drive it.

Take a look at the manual FIRST, and be sure to take out the correct two screws or you will get the rotor drive gears out of time.

Of course, there's a chance the condenser or the coil could have failed or something in the wiring shorted, but the service manual will walk you through all that.

Please post back with what you find.

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03-20-2016 19:31:12

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 Re: New problem help in reply to Bob, 03-20-2016 18:11:55  
Leave the 2 screws alone and remove the 3 screws to get to the points.

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03-20-2016 19:48:24

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 Re: New problem help in reply to teddy52food, 03-20-2016 19:31:12  
Good point, teddy, I slipped on that one, but if he follows the manual, as I suggested, he will be FINE!

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