New ones available from Draganfly

Rivet counting 'in extremis'. Depends on how often they have been renewed (if ever).

As the fibre rubbing strip is missing I wonder if a previous owner put that in to stop the spring tensioner from flattening out too much. Also intrigued by the four screws behind the magneto sprocket.

I do not know how thick that disc is but there is a fair chance that the sprocket will rub on it. I did not think that there was any need to do anything, there was enough metal remaining to stop the bearing outer race moving outwards which is all that flange does if you are fitting an inner seal.

The schemtic is available on Draganfly's site

Hi Alan,
Try <www.parallelengineering.co.uk>
They are based near Wolverhampton and specialise in very accurate frame alignment.

Tappet blocks are available from 'Morgo'. Draganfly are the only source I know for cam followers. Club spares may be able to help with second hand ones.
RR

I too get the impression that the float bowl has the wrong angle from checking it's alignment with the horizontal of the bottom of the tank and the vertical of the battery, but difficult to be sure from the pictures.

As far as i am aware Smiths' pressure gauges were never fitted to Ariels. Correct me if I am wrong.
All singles pressure gauges for singles were 0-25psi.
It does not appear that you have an original gauge. A visually correct gauge is available from Club Spares

Simon.

Forgot to mention that the increase in height is taken care of in the modification to the front down tubes to match up with the Square Four front engine plates.

Roland.