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[aaronjb]

....

Very unhelpful as there are two sizes, 10mm & 14mm

Just 2? I'd to buy yet another size when I wanted to remove the plugs from my TDM 

There's (at least) 8, 10, 12, 14 and 18mm plugs (thread size) made by NGK  (probably others out there, too)

[edit] Not that I've ever seen an 8!

[freecall666]

think means 18mm

What the frig are you smoking today? 

well unless he has a micro light engine it will not be a size 10mm spark plug.

[aaronjb]

True enough, they should be 14mm according to the list I'm looking at (e.g. NGK BKR6EK)

[Steve B]

I expect the confusion here is because spark plug wrenches/socket sizes are not the size of the hex head but rather (if memory serves) named for the size of the threads of the spark plug.

e.g. I have a spark plug wrench right here, it says '10mm' in big letters on it - the hex head end is considerably larger than 10mm but it's for a '10mm' spark plug. The equivalent 'normal' socket is probably somewhere around 16mm.

and thats the one i used 10mm on side

[SteveAvfc.]

changing plugs on 2.2  2002 omega...what size socket do i need

The correct one of coarse, but if you 

Unnecessarily unhelpful.

Sorry not set out to be sarcastic but have always found the two in my socket set did the job when ever ask

[mitchell farmer]

hi ive just changed the plugs on my 2ltr select and they are 10 mm long socket to fit.. the 3/8 drive and a bugger to get to.. ive used ngk twin spark 305's  not sure if thats a help .. your manual should give exact size but type depends on engine  cheers  mitchell

[Webby the Bear]

changing plugs on 2.2  2002 omega...what size socket do i need

The correct one of coarse, but if you have a half decent socket set then you should have it  yes ?? called spark plug remover. 

Very unhelpful as there are two sizes, 10mm & 14mm

 

[Elite_L0ver]

....

Very unhelpful as there are two sizes, 10mm & 14mm

Just 2? I'd to buy yet another size when I wanted to remove the plugs from my TDM 

on my V6 its 14mm so i assume its that on them all

[kcl]

And the original question was as title says, SOCKET SIZE and the socket is nowhere near 10 or 14 mm.

[aaronjb]

And the original question was as title says, SOCKET SIZE and the socket is nowhere near 10 or 14 mm.

But again, if you pick up a spark plug socket you will see that the size written on the socket corresponds to the thread size of the spark plug. So yes, the 'socket size' is 14mm assuming you're using the proper tool - a spark plug socket - and not a regular deep socket.

[kcl]

And the original question was as title says, SOCKET SIZE and the socket is nowhere near 10 or 14 mm.

But again, if you pick up a spark plug socket you will see that the size written on the socket corresponds to the thread size of the spark plug. So yes, the 'socket size' is 14mm assuming you're using the proper tool - a spark plug socket - and not a regular deep socket.

Well, all four spark plug sockets I have, of two different brands, are marked with 16mm and 21mm accordingly without any indications of thread diameter.

[aaronjb]

And all mine are marked corresponding to the size of plug they remove - thread size.