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50 8n with no fire

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Chrisr MO

03-10-2002 09:32:13

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Could the new coil we just put in be bad already? What could burn em out if it is? It was running great then just quit, now it won't start at all. Only has maybe 2 hours since we cleaned up all the connections, new bat.,coil,plugs... I did get my dad a I&T fo-4 but he has it with him on his trip to Indiana! I would like to get it going before he gets back cause I wanna borrow it :-)

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bj/8n/mt

03-10-2002 13:05:32

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Re: 50 8n with no fire in reply to Chrisr MO, 03-10-2002 09:32:13

Direct answer to your question--yes a front mount coil can be bad out of the box or can get toasted in two running hours especially if some body has by passed the balast resistor which gets done more frequently than it should.

Concur with Larry about tests to do but unfortunately there is no shade tree way to test a coil except by replacing it.

If you have a multi meter check for open between the top post and the inside contact--not the spring post. If it is open it is bad but if it shows resistance that doesn't guaranty it is good.

Follow Larry's steps and also post what the voltage is at the top post with the switch on. Then crank it and see if the voltage varies.

Just keep in mind that you are smarter than the tractor and you will get it healed.

Your mileage may vary

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Larry

03-10-2002 10:28:25

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Re: 50 8n with no fire in reply to Chrisr MO, 03-10-2002 09:32:13

With a voltmeter - see if, when the ignition is "on" if you have voltage to the post on the new coil.

If you do, then recheck the points and distributor to make certain everything is on order and nothing is shorted to the distributor's frame.

If you don't, check the ignition switch to see if there is current on both sides when "ON" and then check the ballast resisitor. It should have current on both sides when the ignition is "on" also.

If everything above checks-out then you're down to a condenser failure (you didn't mention replacing that) or the coil has failed. Make certain the spring contact on the bottome of the coil is seated properly on the brass seat when replacing the coil.

Larry

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