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11-01-2018, 08:06 PM | #1 |
Senior Member
Join Date: Jan 2015
Location: New York
Posts: 943
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Another problem solved-Distributor rotor
I was getting intermittent spark, the car would stall, it was running crazy again, I have 3 different downdraft carbs, they all ran the same. Its not the Carb, so it has to be electrical. The problem ends up being the distributor rotor, the metal plate on the rotor that makes contact with the distributor body inserts was loose, and was scraping one of the four distributor body inserts. I installed the new rotor and the car is back to running great again. I guess its not always the obvious, and I should check the little things more often.
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11-01-2018, 08:28 PM | #2 |
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Join Date: Apr 2011
Location: Wimauma, Florida
Posts: 121
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Re: Another problem solved-Distributor rotor
Glad to hear you found the problem - always gives you a good feeling!
A old mechanic friend of mine once told me - 'Check the simplest fix first and you will many times save time and money.' I have been meaning to buy one of those 'see-through' distributor caps for awhile now, I think I will go ahead and get that done. |
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11-02-2018, 08:16 AM | #3 |
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Join Date: Jan 2016
Posts: 2,098
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Re: Another problem solved-Distributor rotor
Now that you have it running you should check the rotor to dist pin gap, should be .025.
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11-02-2018, 08:40 AM | #4 |
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Join Date: Jan 2015
Location: New York
Posts: 943
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Re: Another problem solved-Distributor rotor
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11-02-2018, 02:01 PM | #5 |
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Join Date: May 2010
Location: Austin, Texas
Posts: 925
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Re: Another problem solved-Distributor rotor
"Now that you have it running you should check the rotor to dist pin gap, should be .025."
Please tell us what Original Ford publication has that information.
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11-02-2018, 03:33 PM | #6 | |
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Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,496
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Re: Another problem solved-Distributor rotor
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Quote:
You'll be amazed at the fireworks show if you run the engine like that and watch in the dark. Pretty!
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11-03-2018, 05:19 PM | #7 |
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Join Date: May 2010
Location: Between Seattle & Tacoma
Posts: 2,354
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Re: Another problem solved-Distributor rotor
I don’t know if there is any, because ford parts and specs were pretty tight tolerances. However if you google rotor gap, you will see that .025” to .030” is pretty much accepted. If you go with a smaller gap you lose voltage at the plug. Too much gap, and you’re damaging the coil by demanding more voltage than it can safely produce. That’s why those gimmick “air gap” things at the swap meets and county fairs would prematurely destroy your coil. Although, it would produce a helluva spark!
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11-04-2018, 06:37 PM | #8 | |
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Join Date: Apr 2012
Posts: 1,542
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Re: Another problem solved-Distributor rotor
Quote:
didn't we have a post some time ago to the effect that an owner found significant variances in a repro body? |
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