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Author Topic: Lucas regulator screws  (Read 1652 times)

Herald1360

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Re: Lucas regulator screws
« Reply #15 on: August 14, 2022, 02:02:29 PM »

That just took the thread (sic) completely OT :tiphat
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g6anz

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Re: Lucas regulator screws
« Reply #16 on: August 14, 2022, 04:05:12 PM »

You might, but shouldn’t, say it was screwed up :cheers
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Wittsend

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Re: Lucas regulator screws
« Reply #17 on: August 14, 2022, 05:15:05 PM »

16 replies and we still haven't found anyone who can measure these screws and post up the answer  :shakeinghead


All I can suggest is that the Topic Starter phones up the Distributor Doctor, describes what he has and maybe the DD can pop some in the post.


 :RHD
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Who's a then ?
 

Supercal2007

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Re: Lucas regulator screws
« Reply #18 on: August 14, 2022, 05:34:54 PM »

BSB???  :stars

BSW, BSF even BSP...

Could BSB be British Standard Brass- apparently another pipe thread (though not apparently a British Standard on at all  :thud
BRITISH STANDARD BRASS,  essentially the same as BSC. All 26tpi regardless of diameter.
I dont have a control box to identify it for you.
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Oilierthanthou

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Re: Lucas regulator screws
« Reply #19 on: August 14, 2022, 06:12:26 PM »

I have just removed one from my 1959 model to measure it.
The definitive answer is, it's quarter inch BSF.
I also removed one from my 1937 Austin, it's the same.

I also checked them against my BA tap and die sets, and my British Cycle set, and my BSW set, and my metric set. It does not match any of those. I also have 26TPI BSB set, but there is no point in checking that, as BSB and BSF standards coincide and would be identical at quarter inch. But BSB was used for tubing, not engineering components.
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Marky Harvey

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Re: Lucas regulator screws
« Reply #20 on: August 14, 2022, 06:29:30 PM »

I think at certain sizes BSB might be the same as BSF but I’m no expert.
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Tom

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Re: Lucas regulator screws
« Reply #21 on: August 14, 2022, 08:02:41 PM »

I have just removed one from my 1959 model to measure it.
The definitive answer is, it's quarter inch BSF.

 :o Thank you!
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whitehillbilly64

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Re: Lucas regulator screws
« Reply #22 on: August 15, 2022, 10:10:21 PM »

Try the Brass Screws from an Electrical Plug.

whitehillbilly
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diffwhine

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Re: Lucas regulator screws
« Reply #23 on: August 16, 2022, 12:11:13 AM »

^^^At a guess, I'd say they were too small, but thinking on the same lines, the grub screws in a standard round electrical junction box might be right.

I can't easily check, as I'm in Albania!  :tiphat
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Rustandoil

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Re: Lucas regulator screws
« Reply #24 on: August 16, 2022, 05:43:40 AM »

^^^At a guess, I'd say they were too small, but thinking on the same lines, the grub screws in a standard round electrical junction box might be right.

That's a good shout  :o
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