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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 10-16-2006, 01:44 PM   #11  
CrazyCobraSpeed
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Default RE: spark plugs

how do u gap them?? i have heard of it... but never seen them done??? so if i tell autozone i need oem plugs for a 95 cobra u think they got a book to look up the # number??
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Old 10-16-2006, 01:48 PM   #12  
Derf00
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Default RE: spark plugs

They can look them up for you and show you how to gap them. They will probably try to tell you, "no gapping required" but don't believe the hype. It's ALWAYS a good idea to check incase they were dropped or you need to fine-tune it.

You will need to buy a gapping tool ($5.00) and add it to your toolbox.
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Old 10-16-2006, 01:51 PM   #13  
88BlueGT
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Default RE: spark plugs

I didnt gap my autolite #25's. I pulled the stockers and checked the gapping on them and it was the same as the autolites so I just threw them in. No problems.

Should I of gapped them?
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Old 10-16-2006, 01:52 PM   #14  
CrazyCobraSpeed
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Default RE: spark plugs

ok thanks... so autozone will show me how to gap my plugs if i ask???
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Old 10-16-2006, 02:12 PM   #15  
Derf00
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Default RE: spark plugs

Not saying you should GAP them, just CHECK them. If someone dropped one of the plugs it could close the gap.

Quote:
ORIGINAL: 88BlueGT

I didnt gap my autolite #25's. I pulled the stockers and checked the gapping on them and it was the same as the autolites so I just threw them in. No problems.

Should I of gapped them?
CrazyCobra: yes, it takes two seconds for them to show you how to gap them, if not, here's a link to help you.
http://www.mkiv.com/manual/manualtt/gapping/
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Old 10-16-2006, 07:45 PM   #16  
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Default RE: spark plugs

I just tuned up my car with motorcraft plugs they are to be gapped at .054. they are cheap and will last over 100k
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Old 10-16-2006, 08:03 PM   #17  
medhead
 
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Default RE: spark plugs

to gap your plug you buy one of the gap tools that is like $.99 at any auto parts store.
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Old 10-16-2006, 08:08 PM   #18  
03BottleFedGT
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Default RE: spark plugs

i use auto light 25's and have to change them about every 7000 miles with a gap of .045. if you are running factory timeing stick with .054. if you run it hard get used to changing them more often
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