I am measuring a bore of about 81.6 mm. When I put the cylinder on top of the 28 cases it 'appears' that the push rod holes line up. They look to be the same thickness as in the picture to but it looks like they don't line up in that photo? To confirm the head fits I was going to get some push rod t...

Started cobbling together the parts I have all in to one vaguely motorcycle shaped object. Lathe is now running. Just waiting for a faceplate and some other tooling. When those bits turn up will begin to turn plugs to fit the frame lugs. In the mean time hunting for more bits to help with frame alig...

Does this mean I also need to find an earlier piston without an oil control ring ?

Another question. I was thinking today that I have seen a cylinder like it before to. Are they the same as on a BSA of some kind? Many years ago did a BSA motor and it seems familiar. Gets hard to remember things lately. I read the code on the side as M21 perhaps ?

Oh I had not considered that. The webbing is to keep oil up in the cylinder? So more of a baffle than for strength? That is interesting. Will go have another look when the workshop cools down. Is like an oven here today outside.

When I put the cylinder on top of the 28 cases it looks like the push rod holes line up perfectly to centres. I suppose what I should do next is find the tubes and rods to fit. It all seems right it is just that the bottom of the cylinder extends much deeper and the webs in the top of the 28 case ar...

I have a 1928 Ariel that has been going on for years. I want to ask does the cylinder on later models project deeper than the 1928 ones. I've got a later model cylinder though I cannot figure out what the number is on the side of it. But it wont drop in to my 1928 cases. The webbing in the top preve...

More pictures of sundry bits.

1928 Crank turned up a few days ago thanks to Draganfly. Looks to be something I can work with to. Threads seem all right. Not checked it much further yet than giving the rod a wiggle. Moving on I began digging in to the other motor I picked up several years ago. Will post some more pictures shortly...

Thanks to Karol and the Slovenská was at last able to get the rear engine bracket. In the progress of sorting out my workshop space and fixing up my old Hercus lathe. Collecting together all the pieces is taking a very long time. Going to use the Hercus lathe to clean up the lugs and turn up stubs t...