Yes….some interpretation is required and to be honest, it comes down to what Paul said.
This is my take.

Crankcase and chains

Evening….just a query to those 27-29 owners about the engine’s exhaust valve lift mechanism. I’m currently trial-assembling this mechanism into the timing case on my 28 SV and whilst I can get it all installed etc, there is only a tiny amount of lift. Notably though there isnt any contact wear on th...

Finally back to the 28.
Lots of fettling to get the timing bush into order and crank running properly but got there in the end.

Its just the G1-55 spanner in the factory toolkit from 1927. I see them on ebay all the time often cheaply. a few seconds search…. https://www.ebay.com.au/itm/256272150511?mkcid=16&mkevt=1&mkrid=705-154756-20017-0&ssspo=bT-Kl6j4QAK&sssrc=4429486&ssuid=qUiXUuvKT3a&var=&wid...

With so many Black Ariels being resurrected these days, Karol will not be able to retire!!

good luck Rodney, I was with you on the Ariel Rally in South Aust and recall your issues. Hope you get it sorted so I can ask you for hints in the future.
Michael in Adelaide.

I’ve restored quite a few genuine altettes and bought many parts from Taff over the years, the Lucas horn guru now no longer. The repro ones on the market now have the wrong shaped acorn nuts aswell as the centre nut! The threads on some of the studs is BSF not BA aswell. Also the small 4BA studs sh...

a couple more pics

I bought a very tidy LS250. It did need a bit of extra tidying. It may substitute the Q box.