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Spark plugs

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Spark plugs
John Cornforth Offline
Sevenner since 2002
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Joined: Aug 2017 Posts: 626 Threads: 19
Reputation: 10
Location: Hampshire UK
#2
23-11-2022, 01:44 PM
Hi

The information I have suggests that original Champion No 7 plugs had a 1/2 inch reach. The D21 is also listed as 1/2 inch reach

I don't have a LC head to hand, but the thread in the head shouldn't be too different to this.
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Messages In This Thread
Spark plugs - by morrisminor - 23-11-2022, 12:45 PM
RE: Spark plugs - by John Cornforth - 23-11-2022, 01:44 PM
RE: Spark plugs - by John Mason - 23-11-2022, 02:20 PM
RE: Spark plugs - by Reckless Rat - 23-11-2022, 02:24 PM
RE: Spark plugs - by morrisminor - 23-11-2022, 08:46 PM

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