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Austinsevenfriends › Austin Seven Friends Forum › Forum chat... v
Spark Plugs

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Spark Plugs
David Stepney Offline
Cantankerous Welsh Hermit
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Joined: Jan 2019 Posts: 1,567 Threads: 20
Reputation: 14
Location: Bala North Wales
Car type: 1933 RP Standard Saloon
#21
16-04-2023, 08:39 PM
I have always used a 22mm ring spanner on my plugs. No chance of breaking the insulator.
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John Mason Offline
Lifetime lover of car tinkering
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Joined: Dec 2017 Posts: 1,160 Threads: 68
Reputation: 8
Location: Nottinghamshire. Robin Hood County
Car type: Austin Ruby Mk1 1935
#22
17-04-2023, 02:15 PM
I will second that David the ring end of a 22mm combination spanner does the trick.

John Mason.
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.
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Nick Turley Offline
Senior Member
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Joined: Aug 2017 Posts: 502 Threads: 13
Reputation: 8
#23
17-04-2023, 05:20 PM
D21's run very well in Austin sevens with ethanol fuel. 
Saves your magneto from failure.
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Ivor Hawkins Offline
Mechanically sympathetic
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Joined: Aug 2017 Posts: 1,647 Threads: 23
Reputation: 15
Location: The village of Evenley
Car type: 1934 Austin Seven RP Deluxe
#24
17-04-2023, 06:19 PM
I’ll second what Nick has said I’m on D21s and the old box is whizzing along nicely, regardless of what fuel goes in it!
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Old Dave Offline
Member
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Joined: Aug 2022 Posts: 149 Threads: 27
Reputation: 0
Location: Cheshire
Car type: Austin 7 RN - 1932
#25
18-04-2023, 05:45 PM
Accuspark have just confirmed that their AA77C. Is the equivalent of Champion D16 and NGK AB-6..
They call it their 18mm short plug.
I did get another message through eBay advising me to fit them and then turn the engine by hand to convince myself that nothing will spoil my day.

Thanks to all for your advice.
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