Lewis - What engine ?

[R]

Lewis project  (ex-Adelaide)
Said to be 1910
What engine is that

https://scontent.fbne6-1.fna.fbcdn.net/v/t39.30808-6/656653990_936403695650586_909555156376747768_n.jpg?stp=cp6_dst-jpg_tt6&_nc_cat=106&ccb=1-7&_nc_sid=e06c5d&_nc_ohc=1Byd0ztidSIQ7kNvwHLz3eK&_nc_oc=Adr2QXIju4D6UVj1SdEDGn8PkC5lOydZKbZmxiQMrhTum3_fh1n4is6iboMt0Deo-uI&_nc_zt=23&_nc_ht=scontent.fbne6-1.fna&_nc_gid=9V5lj1zNrTJq0sz6APrccg&_nc_ss=7a30f&oh=00_AfxhHqDjdEoBu-rsT0HRi3oNRBueq8leAUHIJwoPIOJhSg&oe=69C9629C

Have some vague recollection of some discussion of this - with those twin bolts in the exhaust stub like that.
AJS  ??

[cardan]

Yes that's an engine by A.W. Wall - think ROC. It was rated 3 1/2 hp, so somewhere around 500cc. Lewis only used it 1909-10, as the Precision - or at least the Lewis engine built for Lewis by F.E. Baker - became available.

Glenn found the frame; I described the engine and told him if he could find one I'd give him the exhaust system. He found it and I gave it to him!

1910 was an extremely chaotic year at Lewis. They offered Wall, Stevens and Precision engines, air- or water-cooled, in either the old Chater Lea set (with the Simplex leaf-spring front suspension) or the new Chater Lea set with the leading link CL suspension fork.

Cheers

Leon

[cardan]

Here's the engine in a ROC.