Size of spark plug for the right tool...

londonsilvia · #1 20-05-2010, 22:40

laymans terms... please...

30psi · #2 20-05-2010, 22:43

Well the hole that the spark plug screws in to is 10mm wide.

The socket that fits on the plug is 16mm.

But for some reason spark plug tools refer to the 10mm which may mislead you.

As long as you buy something recognised as a 10mm spark plug tool you'll be fine, but if you were using a normal deep socket you'd use a 16mm.

londonsilvia · #3 20-05-2010, 22:59

is this what you mean? 10mm/16mm? i got this but i cant get to the last 2 spark plugs, i need a bendy one... http://www.halfords.com/webapp/wcs/s...egoryId_165469

this is the bendy one im going to try, will it be long enough?

http://www.halfords.com/webapp/wcs/s...Id_165469#dtab

cheers for helping me understand.

30psi · #4 20-05-2010, 23:07

Yeah that's why it has 2 sizes (but still only 1)

That 2nd one should work yeah, I've used one like that for many years

londonsilvia · #5 22-05-2010, 13:23

what do you mean 'stock' plugs? my plugs are NGK R for an S12 and they're currently set at .70mm, do they need to be 1mm?

cheers