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Old 03-20-2008, 07:47 PM   #1
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spark plug change?

So i have about 34k on the clock and I was wondering when would be a good time to change the plugs, which plugs you guys would suggest and is it fairly easy to do? Any help would be greatly appreciated.
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Old 03-20-2008, 08:15 PM   #2
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Re: spark plug change?

i say every 30k isnt to bad just use oem to the correct gap. put a little antiseeze on em and tq them to the correct spec, its not that bad.
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Old 03-21-2008, 09:45 AM   #3
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Re: spark plug change?

Well i ran ngk tr55's for a long time i've gapped them everywhere from .045 to .054(stock gap) now im running ngk tr55ix's and the car actually runs a little better.
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Old 03-21-2008, 10:19 AM   #4
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Re: spark plug change?

Can't go wrong with these VMP Tuning - Buy Ford SCT & GM Custom Handheld Flash Tuners Performance Economy Towing: Spark Plugs
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Old 03-23-2008, 10:45 PM   #5
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Re: spark plug change?

plugs in your car are platinum plugs don't need to be changed for at least 60000 miles
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Old 03-24-2008, 08:15 AM   #6
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Re: spark plug change?

you can get to the drivers side plus easy enough, check them and see how they look. If they look ok let them be (check gap in them to) make sure they are in fact platinum.
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Old 06-21-2009, 08:23 PM   #7
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Re: spark plug change?

I know this is an old post but i just changed my spark plugs and the wires today and god it was hard. Specially the passenger side... And the wires go through the back of the engine and its really hard to get them through...

Hope all is well... Car used to shake sometimes when i came to a stop n i also sometimes i had a hard time gettin it on... This seems to have solved the problem!

Motorcraft sparkplugs and wires =)
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Old 06-21-2009, 11:38 PM   #8
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Re: spark plug change?

i changed mine at 60,000 and they still looked good, i would at least wait until 70k or so...
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Old 06-23-2009, 09:45 AM   #9
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Re: spark plug change?

i just read somewhere that the silver anti sieze paste is not good for electrical connections. they make a copper based paste that's supposed to be better for spark plugs. i'm really not an expert in this field, but curious if anyone wants to chirp in. it would make sense to me that if you want electrical conductivity, that copper would be the way to go. i'm not sure what the silver stuff is based on.
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Old 06-23-2009, 10:59 AM   #10
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Re: spark plug change?

you should use some for alum to alum just very little, it doesnt take much. This also alters the tq specifications fyi.

For near stock cars go OEM, I would buy OEM ford and check/set the gap to specs and tq them to specs thats all thats needed.
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Old 06-23-2009, 11:59 AM   #11
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Re: spark plug change?

I use the copper anti-seize and it does a good job.
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Old 06-23-2009, 09:28 PM   #12
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Re: spark plug change?

you aren't kidding about the torque specs. for the first time, i decided to put a torque wrench on the plugs. i set it at 7 pounds and it never clicked. i decided that i was pulling hard enough and stopped.
i had a similar experience with the thermostat bolts. i pulled until i felt it was enough and stopped. i didn't reach the torque spec. i figured it was easier to tighten them more later if it leaked than fix a cracked manifold!
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Old 06-23-2009, 10:13 PM   #13
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Re: spark plug change?

7 pounds is very light. Is it possible that your torque wrench clicked very early and you just never felt it? I use my 3/8" ratchet, hold it close to the extension, and snug them in and then give an extra 1/5 turn or so. It's a lot faster than torque wrench and has done an excellent job the last 40k miles and like 6 changes.
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Old 06-23-2009, 10:48 PM   #14
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Re: spark plug change?

i had the same thought about the torque wrench.
i used it in another spot and it seemed okay.
either way, i agree with you, tighten them by feel.
i used the torque wrench on brake calipers, mostly. don't want them buggers coming loose, reckon?
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Old 06-24-2009, 08:13 AM   #15
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Re: spark plug change?

a torque wrench that measures around 200ftlbs max is not good enough to do 10-20 ftlbs, its not accurate enough that low. You need an inch pound wrench that has a smaller range, they are always more accurate in the middle of their range.
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Old 06-24-2009, 08:13 AM   #16
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Re: spark plug change?

Quote:
Originally Posted by 968 View Post
i had the same thought about the torque wrench.
i used it in another spot and it seemed okay.
either way, i agree with you, tighten them by feel.
i used the torque wrench on brake calipers, mostly. don't want them buggers coming loose, reckon?
It's mainly one of those... I don't want to miss the click from the wrench and be so anal about having to hear the click that I strip out the aluminum threads...
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Old 07-08-2009, 12:39 AM   #17
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Re: spark plug change?

i have 89,300 miles on my stang, maybe its time for me as well.
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Old 07-08-2009, 08:18 AM   #18
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Re: spark plug change?

you should around 60k just to check them and make sure they are all ok
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