Will .06" SP gap cause harm? - JeepForum.com
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post #1 of 2 Old 02-07-2002, 10:33 PM Thread Starter
Matt Bodnar
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Join Date: Apr 2001
Location: Ste Rose, Manitoba, Canada
Posts: 10
Will .06" SP gap cause harm?

ok,..I got the 4.2 with the carb,..and I got to the point that I I would loose speed and power in 5th. then it would flood cause it had no power .
So I got a HEI coil from an 1985 GM 2.5l motor,(that I had laying around)..and replaced the tin can one.
Then the gapping 4 that motor sayz .06", so I gapped mine to that also.
I had the TFI base and large cap but switched to the stocker again.
I test drove it and it starts better and runs better too,..with more acceleration .
I am wondering if the increaced gap will harm the motor?
it should just lower performance,..right?
but it didn't so will it be ok untill I get the TFI coil and switch it all over?

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post #2 of 2 Old 02-08-2002, 02:08 AM
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1992 YJ Wrangler 
Join Date: Feb 2001
Location: Northern California
Posts: 748
I don't see a problem. If the engine runs fine then go with it. Typically when you fo things like a MSD or Jacobs you can widen the gap. Basically adding HEI is the same thing. If the gap is too wide then it won't arc and fire the cylinder.

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