I think you're correct Ron.

If you want to convert a car side light to a BSA / Ariel motorcycle tail light, you need a chrome on brass body, not the later zamac version. And it should have a red opaque logo.

The original tutorial was published in the Birmingham to Berlin blog, which has long gone. But I copied the important details...

email (option): wd.register@gmail.com

That is correct Jan. The Logo shines red as a tell tale. I've bought repros from Vintage Supplies but I don't see them there now?
https://www.vintagecarparts.co.uk/products/516medal-lucas-type-lamp-badge-medallion

I used two coats of this glass paint on the inside of the white lens for the repro lamps I made, as I've never found a suitable alternative Ruby lens. Ron

email (option): ronpier@talk21.com

Thank You Ron ,
Yes both sizes are marked up MT1130 !
Other than size they are identical ..Im guessing the larger one is correct ?

Thank You in advance,
Steve ..

email (option): s.foster11@blueyonder.co.uk

Thank You Jan ,
The pair I have here are chrome plated brass but 2 different sizes ?
The larger one from end 2 end including lens is 5"approx .
The smaller one is 4 & 1/4" from end to end approx ..Im struggling measuring accurately as My wrist is in plaster .

The diagrams show all the dimensions except the overall size ?
I am trying to guage this against the authors hand but it could go either way ?

email (option): s.foster11@blueyonder.co.uk

email (option): s.foster11@blueyonder.co.uk

Stephen the length of my original and subsequent repros is 4 1/4". And Jan has the correct number plates. Ron

email (option): ronpier@talk21.com

Thank You Mr Pier .

I will work on the smaller one then .
I assume the 41/4" is from pointed tip to the front of the lens ?
Jan has been in touch .

email (option): s.foster11@blueyonder.co.uk

email (option): s.foster11@blueyonder.co.uk

Yes Steve the overall length is 4 1/4" The other one would be far too big. But you should try and retrieve the red plastic "tell Tale" badge. Ron

email (option): ronpier@talk21.com

Thank You ,
I aim to preserve the red "tell tail" pendant .
I cant even open the body up yet as I cant close My fingers around a screwdriver ..I know all the internals are present on all 3 lamps but dont know how the pendant is attached into the body yet ?

Just had a thought (rare) but how would You be able to see the "tell tail" ..is way out of vision on the bike I think ?

email (option): s.foster11@blueyonder.co.uk

"Just had a thought (rare) but how would You be able to see the "tell tail" "

Unless you have a neck like an owl. It will remain one of life's mysteries! Ron

email (option): ronpier@talk21.com

If anyone is interested

I have 2 bodies
1 x mazac
1 x chromed brass
1 x white Lens
1 x painted red white Lens
1 x mint original red Lens
Some repro lucas red top pennants
1 x nos Lucas red pennant
Some Lens securing screws in st steel I think

These are surplus to my requirements at this time - would prefer to unload as a lot - swaps considered

Br
Jo’b

email (option): jonnyob1@googlemail.com

Are all the bodies the same length ?

I think so Rik

Can check tomorrow when at the container

Br
Jo’b

email (option): jonnyob1@googlemail.com

Hi chaps,

FYI Retro Ignition in the Uk sell repro red tell tales for the 1130 light. £8.36 + VAT.

https://www.lucasignition.com/product/lucas-type-red-dot-for-1130-sidelamps/