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How to remove spark plug wire bolt?

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Old

Apr 10, 2014 | 02:17 PM

#1

birddseedd

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How to remove spark plug wire bolt?

Went to change the plugs on an 02 f350, the bolt holding the plug wire boot on doesnt seem to fit any standard size socket. 7 is too big, 6 is too small. 1/4 is too small, 9/32 is too big.

???

thanks for the help

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Old

Apr 10, 2014 | 02:38 PM

#2

DavidB

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I am not positive that it is the same on all year models and all engines, but on a 2000 6.8 v10, the bolt head is 7mm.

A 6 point socket works best for me.

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Old

Apr 10, 2014 | 02:39 PM

#3

nojoke327

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From: monroe ct

I had a similar issue yesterday. I believe 6 or 7mm fit but it was tight on several due to rust buildup. I would gently tap it on with a hammer and clean them up before you reinstall

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Old

Apr 10, 2014 | 02:51 PM

#4

birddseedd

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Quote:

Originally Posted by nojoke327

I had a similar issue yesterday. I believe 6 or 7mm fit but it was tight on several due to rust buildup. I would gently tap it on with a hammer and clean them up before you reinstall

i tried taking a wire brush to it

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Old

Apr 10, 2014 | 03:16 PM

#5

acf6

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From: Manchester, CT

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I believe it is 7mm

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Old

Apr 10, 2014 | 03:19 PM

#6

birddseedd

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Quote:

Originally Posted by acf6

I believe it is 7mm

7 has quite a bit of play tho. looks like it woudl just strip it. im a bit affraid to turn it.

should i soak the plugs in oil over night? in case they are the original crappy ones that break. iv been told to do it engine warm, and engine cold. which?

thanks

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Old

Apr 10, 2014 | 03:22 PM

#7

Charlie5280

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PB blast....soak those babies and allow it to de-oxide some of the Iron Oxide on the bolt.

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Old

Apr 10, 2014 | 03:39 PM

#8

birddseedd

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what do i do about not having a socket that fits it?

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Old

Apr 10, 2014 | 05:35 PM

#9

redford

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Go to Harbor Freight or Northern Tools, or Sears.........and buy a socket that fits.

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Old

Apr 10, 2014 | 06:00 PM

#10

birddseedd

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Quote:

Originally Posted by redford

Go to Harbor Freight or Northern Tools, or Sears.........and buy a socket that fits.

I don't think its a standard size. its inbetween 6mm and 7mm.

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Old

Apr 10, 2014 | 06:11 PM

#11

redford

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I thought they were 8mm? Anyway, they are a standard metric size.

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Old

Apr 10, 2014 | 06:13 PM

#12

birddseedd

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Quote:

Originally Posted by redford

I thought they were 8mm? Anyway, they are a standard metric size.

For the life of me i cant get 6mm on them, and 7 has a lot of wiggle room. enough i know its gonna strip it. i just know it.

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Old

Apr 10, 2014 | 06:31 PM

#13

jetjockey99

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I don't have one so I can't say, but if a 6mm is too small and 7mm is too big try a 1/4" 6 point, it is equal to 6.35 mm. it may work.

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Old

Apr 10, 2014 | 06:54 PM

#14

ot106

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From: marengo,illinois

Change plugs on an aluminum head engine with the cold. This reduces any risk of any slightly seized aluminum (to plug threads) being removed with the plug.

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Old

Apr 10, 2014 | 07:01 PM

#15

Tom

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From: Isanti, MN

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The factory size is 7mm, so unless someone has put some funky aftermarket bolts that's what you have. Make sure to use a 6-point socket. These bolts don't have much torque at all, you shouldn't strip them.

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