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MG Midget and Sprite Technical - Dynamo Nut

Can anybody tell me what the thread is on the larger of the two posts? 7/16" UNF is too fine.
Nick and Cherry Scoop

nut found
Nick and Cherry Scoop

Nick,

I am not 100%, but I believe 1/4" BSF in brass.

Richard
Richard Wale

Electrical stuff is often BA. I have a box of random nuts and bolts salvaged from junk for such occasions!
AdrianR

Exactly what my old car mate had, Adrian! He took my dynamo home last night and went to his 'medium' box, and found me a nut very quickly. Thanks, all.

Less good news on alignment - the dynamo pulley is sitting nearly 1/16" forward of the other two (which line up perfectly with each other). Either it was always like that, or the new water pump is not exactly right.
Nick and Cherry Scoop

Well if a 1/4" BSF nuts fits then it might be 0BA which would be 6mm OD and 25.4 TPI whereas 1/4" BSF is 26 TPI so quite close.
David Billington

This thread was discussed between 05/06/2018 and 06/06/2018

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