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Farmall & IHC Tractors Discussion Forum
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electronic ignition fried!!!!!

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Ron

04-26-2004 09:58:56




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My dad has 2 606 that has been running fine for about 2 years. Recently, it died (no spark) and he determined the electronic ignition burned up. He got another unit and it started and ran for a minute and quit. He took the distributer cap off and te unit was vey hot - ruined.

What would you expect is happening? I thought maybe the ballast resistor went bad- but then again it protects the coil and not the electronic igniton (right?). He said the only thing he recently did was have the generator rebuilt ( he took it back and it was verified to be operating correctly)

Pleas help!!!

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Jerry/MT

04-26-2004 13:41:44




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 Re: electronic ignition fried!!!!! in reply to Ron, 04-26-2004 09:58:56  
I don't know what kind of electronic ignition you have. I have a Pertronix and it requires that you feed the electronic unit with 12V (negative ground system)from the positive side of the battery. That requires you tap in ahead of the ballast reistor and do not connect it to the coil (which is connected to the downsream side of the ballast reistor at 4-5 volts). The other caution is to not leave the key "ON" when the tractor isn't running. If you know the maker of the electronic ignition system, perhaps they have a customer service number you can call on for help.
Hope this helps.

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Here's my guess:

04-26-2004 11:43:34




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 Re: electronic ignition fried!!!!! in reply to Ron, 04-26-2004 09:58:56  
Voltage regulator has gone bad.



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Ben in KY

04-26-2004 10:51:55




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 Re: electronic ignition fried!!!!! in reply to Ron, 04-26-2004 09:58:56  
Bad/shorted coil ?



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Bob M

04-26-2004 10:43:03




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 Re: electronic ignition fried!!!!! in reply to Ron, 04-26-2004 09:58:56  
Ron - I’m not familiar with that particular tractor nor it’s electronic ignition. However a couple possibilities to check out:

1 – The ballast resistor has shorted causing the distributor module to see 12 volts after the starter is disengaged. If the ignition system was designed to have the ballast resistor this could well cause the module to overheat/burn out.

2 – The generator was not properly polarized after being rebuilt/reinstalled. That could send current of the wrong polarity thru the ignition module - could then fry it quick!

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Russ

04-26-2004 16:37:43




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 Re: Re: electronic ignition fried!!!!! in reply to Bob M, 04-26-2004 10:43:03  
Fried dough; I would go with version 2 above.
Someone else did the generator rebuild, but, unless the tractor was also at the service the flashing of the generator may NOT have happened.
Under that condition the voltage regulator may have been taken to smoke city. Hope you can cover one more ignition module. Good luck ride the voltage wave or curve as the case may be.



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bob

04-26-2004 14:17:54




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 Re: Re: electronic ignition fried!!!!! in reply to Bob M, 04-26-2004 10:43:03  
If the current was going the wrong way the ignition wouldn't have worked at all....



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