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Feb 12, 2011 | 01:19 PM

zakk

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From: Colorado

NEW PLUGS

ok guys i got all the autolites out of there no problem they all looked great...

so after i go pick up the new motorcrafts i read somewhere that i need to preheat them before i stick them in? is this true and if so how do i do it correctly?

thanks for all the help!!!

Feb 12, 2011 | 01:20 PM

snaponprofile

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From: NY

I just replaced mine and didn't have to preheat them, just screw them. Remember to use anti-sieze on the threads.

Feb 12, 2011 | 01:22 PM

zakk

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From: Colorado

oh ok. just regular tightness as a spark plug right?

Feb 12, 2011 | 01:39 PM

tecgod13

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From: Western Mass

Yah spark plug tightness should be fine. There is a spec on them, but I can't think of it off the top of my head, and I'm too lazy to check... ;-)

I'll second the use of anti-seize on the threads. No reason to preheat, where the hell did you get that idea? I can see testing them before install, but preheat just doesn't sound right. Also use some dielectric grease on the wiring end to keep that clean. Vaseline will work too, something to keep the corrosion off the electrical contacts.

Feb 12, 2011 | 01:49 PM

zakk

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From: Colorado

https://www.ford-trucks.com/forums/1...low-plugs.html

i few posts down they were talkin about it

and ok ill use that grease

Feb 12, 2011 | 04:21 PM

snaponprofile

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I'm pretty sure they were taking about testing them by lighting them up. Not for the sake of the plugs, but just to make sure that they worked before putting them in the engine.

Feb 12, 2011 | 04:25 PM

zakk

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From: Colorado

oh ok well they are in and its started up perfect

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Feb 12, 2011 | 04:34 PM

zakk

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From: Colorado

they were all still good

Feb 12, 2011 | 04:42 PM

#10

snaponprofile

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Lucky you

Feb 12, 2011 | 04:44 PM

#11

zakk

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From: Colorado

yep haha. i was actually thinking if i had to ever repair them how would i have to do it and you answered my question so thank you haha

Feb 12, 2011 | 06:14 PM

#12

wreckinball

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From: Malahat/Cowichan Valley

factory torque setting for the GP's is 12ft/lb so set it to snug and then about one flat, so looking at the gp, the hex head on it, rotate it one flat beyond snug.

Feb 12, 2011 | 10:43 PM

#13

Dave Sponaugle

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From: Nutter Fort, WV

I think that was someone talking about pre heating the Autolite plugs before you installed them.

That is kinda a moot point, very few people will take the chance running Autolite plugs.