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Spark Plugs
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Bill Harrison



Joined: 17 Aug 2016
Posts: 3

PostPosted: Sat Aug 20, 2016 2:13 pm    Post subject: Spark Plugs Reply with quote

Anyone know what the modern equivalent of a AC42X is? Its for a Meadows 4 EC in a 1926 lea Francis.
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mikeC



Joined: 31 Jul 2009
Posts: 1810
Location: Market Warsop, Nottinghamshire

PostPosted: Sat Aug 20, 2016 3:38 pm    Post subject: Reply with quote

Contact Tim at the Green Spark Plug Co - he'll give you chapter and verse on suitable options:

www.gsparkplug.com
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Ashley



Joined: 02 Jan 2008
Posts: 1426
Location: Near Stroud, Glos

PostPosted: Sat Aug 20, 2016 4:07 pm    Post subject: Re: Spark Plugs Reply with quote

Bill Harrison wrote:
Anyone know what the modern equivalent of a AC42X is? Its for a Meadows 4 EC in a 1926 lea Francis.


I can only find an AC42XL or XLS, which would be equivalent to NGK B6ES or BP6ES. The P means projecting nose.

That's a pretty average plug heat range.
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Bill Harrison



Joined: 17 Aug 2016
Posts: 3

PostPosted: Sat Aug 20, 2016 7:59 pm    Post subject: Reply with quote

Thanks that sounds good
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Phil - Nottingham



Joined: 01 Jan 2008
Posts: 1252
Location: Nottingham

PostPosted: Sat Aug 20, 2016 9:23 pm    Post subject: Reply with quote

Its important to find the modern equivalent - petrol these days even with no ethanol; runs hotter which causes "issues"
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