Joined: Jul 2022 Posts: 2 Threads: 1
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Location: Glasgow
Car type: Austin Seven Box Saloon 1931
@page { size: 21cm 29.7cm; margin: 2cm } p { line-height: 115%; margin-bottom: 0.25cm; background: transparent }
Hi, does anyone know the Standard Thread of the fixed ignition point on a DJ4 Distributor. Information available suggests BA sizes were in use in the 1930s. Thanks in anticipation.
Joined: Aug 2017 Posts: 738 Threads: 13
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I use a BA Spanner on my points.
I suspect its a 4 BA but I would need to confirn it.
0 BA is a large thread size and the numbers go up as the diameter goes down.
Joined: Oct 2017 Posts: 1,504 Threads: 54
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The early fixed contact is 4 BA and the late fixed contact is 3 BA.
Joined: Jul 2022 Posts: 2 Threads: 1
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Location: Glasgow
Car type: Austin Seven Box Saloon 1931
Many thanks to everyone for their response. It is much appreciated.
Joined: May 2018 Posts: 46 Threads: 12
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If anyone needs any BA Taps and Dies I have plenty spare, I will swap for 7 bits too
