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Old 05-01-2019, 08:54 PM   #66
alexiskai
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Join Date: Apr 2018
Location: Mebane NC
Posts: 2,353
Default Re: Sudden rough running, out of ideas

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Quote:
Originally Posted by Tom Endy View Post
Inspect the modern lower plate you installed. You are likely to find a burn arc where the contactor was rubbing the flat plate. The arc is caused every time you move the spark handle though its paces. The burn will eventually become severe enough to cause the car to run poorly.
That's a good point. I don't think that'll happen with me because I installed the Nu-Rex modified distributor shaft that advances the spark, so I'm not moving the spark handle hardly at all. I can see how it might happen to others, though.

I wonder if you could mitigate that issue through the use of a conductive grease.

Quote:
Originally Posted by Jw View Post
Plugged up muffler?
Checked and eliminated that somewhere earlier in this topic.
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