Touring piston oil ring "coiled wire"

[David Stepney]

Thanks for all the discussion. Piston ring springs it is!
So if singly in a set of 4 (as per Seven piston), would one use it in the lowest oil ring position... or the upper position?

I have just been out to the garage to refresh my memory. The mutli-piece oil control ring should be fitted to the upper oil control groove.

   

The multi-piece ring in the picture is not quite the same as the one you have shown in your earlier photo, but I am sure you get the idea.

(And Hedd, if you see this post,  the image was taken with the Leica D-Lux. A bit better than the old DC20!)