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Re: Help ! Ford 8n No spark !


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Posted by greenbeanman in Kansas on July 27, 2008 at 15:30:32 from (70.130.56.161):

In Reply to: Help ! Ford 8n No spark ! posted by stoney459 on July 27, 2008 at 13:32:41:

"She still will not get spark to the plugs the points are getting it but not to the Plugs ???"

The opening of the points causes the voltage buildup within the coil to collapse thereby raising the voltage which produces the spark.

If the coil is producing a spark but it is not getting to the plugs it is in the distribution system. Coil wire/distributor cap/rotor/plug wires.

Is the coil wire in good condition and seated firmly in both the coil and the distributor cap?

Is the rotor in good condition and making contact with the cap pickup and with the end not worn sufficiently to prevent contact with each plug wire tower?

Are the plug wire tower contacts within the cap corroded over such that would prevent movement of the voltage? Sometime they corrode over and in a pinch the corrosion can be scraped off in order to make contact.

Are all of the plug wires seated fully and in good condition?

Back to the points---is the rub block which makes contact with the cam too worn to open and close the points? Are the points closing when off of the cam high? And of course opening the required distance when on a high? I assume that the capacitor is of the correct microfarad rating in order to prevent point burn, meaning are the contacts in good condition and not burned away?

In addition--the point set needs to be installed correctly to function properly. One error in general was placing the spring and capacitor wire terminal in the wrong position creating extra pressure on the point spring.

As you can probably tell from my post this is generic point/distributor information instead of specific to the 8N.


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