I had a spark plug snap and leave the threaded part in the head. I've drilled it to 10 or 12mm (can't remember off hand) and now need to know what the correct plug thread size is.
The most common i see for spark plugs is 14 x 1.25.
Is this correct for a 1.7 head?
spark plug threads
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Dean.s
- DDK forever
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spark plug threads
1974 Porsche 914
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KS
- Nurse, I think I need some assistance
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