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Re: 1950 Ferguson TO20 has no spark

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09-26-2012 05:43:05

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It appears you have a gremlin. Sometimes I have noticed testing spark at coil wire isn't conclusive and testing at spark plug wire is more indicative. Try putting a spark tester in line between a spark plug wire and a plug and see if you have spark. As mentioned, the insulator where the small wire comes into the distributor is something to check. I know you have tested and got no spark inside the distributor, but just for grins make sure the cap isn't cracked. Wouldn't hurt to look at the plugs, even though you don't think it's getting that far.

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09-26-2012 16:49:07

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 Re: 1950 Ferguson TO20 has no spark in reply to phil(va), 09-26-2012 05:43:05  
@phil: Thanks for posting the suggestions, even though they don't make much sense. If you remove the high voltage wire from the center of the distributor cap and place it within an eighth to a quarter inch of the engine block, as I did while cranking the engine, you will either see a strong spark, a weak spark, or no spark at all. If there is no spark visible (which was the case), then there is no way you will place that wire end back into the distributor cap and find that you have a spark at any spark plug. One does not need to purchase a spark tester to determine whether or not there is a spark, and the strength and quality of the spark is quite apparent to an observant eye. You want to see a strong, bluish spark. Just a note to those who might use my method of holding the high voltage wire close to the engine block - be sure that you use something like an insulated ignition wire holder tool when doing this test or you may receive quite a jolt!

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09-27-2012 12:40:48

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 Re: 1950 Ferguson TO20 has no spark in reply to Rickoff, 09-26-2012 16:49:07  
You must be related to the admiral...?

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