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+--- Thread: 18mm sparking plugs (/showthread.php?tid=8166)
18mm sparking plugs - Malcolm Parker - 15-11-2022
Whilst rummaging about in the garage recently I came across a box full of old 18mm plugs, many of them unused. I used to have a list of plugs suitable for the Austin 7 but I cannot remember which book it is in!
The plugs are all Champion, as follows:
FY7C
7 COM
K17
Please could someone advise on whether they are suitable for use in a mildly tuned engine?