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May 8, 2017 | 04:54 PM

#16

01 GT F150

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Joined: Mar 2017

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Quote:

Originally Posted by alloro

In theory you're correct. However, there's always that one day at the spark plug gapping plant, where that one guy who's wife of 30 years walked out the night before and moved in with his best friend...

LOL, not that's funny

May 8, 2017 | 06:26 PM

#17

meborder

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Joined: Jul 2011

Posts: 6,508

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From: Sioux Falls Area

What should the gap be?

The champions advertise as 0.045". So if that the case, mine wore away over 0.010".

What does ford say? I still cant find my book....

May 11, 2017 | 09:31 AM

#18

alloro

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Joined: Apr 2008

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From: 0,0,1

Quote:

Originally Posted by meborder

What does ford say? I still cant find my book....

Does your under the hood emissions sticker have the gap?

May 12, 2017 | 08:35 AM

#19

meborder

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Joined: Jul 2011

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From: Sioux Falls Area

I didn't think of that.

I checked, and my emission sticker is MIA. I suppose it was never replaced when it got fixed in a previous wreck.

May 12, 2017 | 01:11 PM

#20

rla2005

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Joined: Oct 2005

Posts: 20,786

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From: Kentucky

My Ford Service Manual shows this:

Spark plug gap 1.32-1.42 mm (0.052-0.056 inch)

May 12, 2017 | 03:25 PM

#21

meborder

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Joined: Jul 2011

Posts: 6,508

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From: Sioux Falls Area

I've found that spec elsewhere.

curious though, mine measured only a couple thousandths out of spec and it was misfiring. That and Champion is gapping them much closer than the spec, autolite as well at 0.049"

now I'm really glad I didn't measure the new plug before I put it in. if I had measured it and looked up the spec, it would have bothered me to no end to install it at 0.045" ... ignorance truly is bliss