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managed to get grooves for the circlips machined in to the piston, I made a mandrel to hold the piston, was just a push fit as the machining ws very light and shallow, works well Made the circlips out of piano wire Two rings all most completed

Decided to make a finned exhaust

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Out smarted my self with the crank, I decided to make it one piece instead of 3, I now know that was not a good plan Starting to assemble the engine, go to the point of test fitting the piston and conrod, well there is now way to get the rod onto the crank ( bugga ) I ended up machining the pin...

Piston almost finished just have to put a grove in the gudgeon pin hole for a circlip on either side

All parts of the air fuel mixer are complete

Started on the fuel mixer its not really a carry as it has no butterfly of barre, just a needle valve made the bolt the holds the mixer to the head, this bolt is hollow and has a hole drilled in the side so the fuel can pass through it Taped a scrap piece of aluminium to hold the bolt...

Pull start pieces are finished, not much had to be done just a clean up of the casting

Cup washer and cerclip made for both valves Test fit for the valves and rocker arm as can be seen here, the measurement on something is not quite right between the rocker are and valve It looks like the dimension for the rocker post is a quarter of an inch to long I cut 1/4” off the post...

Jig for holding the rocker arm so I could machine the pivot point flat on both sides and the drill and ream the hole Counter bored the hole for the socket head bolt that holds the rocker post to the head

This is the site you used to be able to get them, but sadly it looks like they may not be available any more https://www.cringlemodelengineering.co.uk/

Lucky you, I miss flying, good fun I managed to get absolutely nothing done today, and it took me all day to do it :cool:

Maybe he stoped making them and got a job, shame it hasn't payed off for him

I have emailed and messaged through his web page but he doesn't answer

I looked on there site but they don't list it

There are still some things on his page that are for sale but most say out of stock, I sent an email, just have to wait and see if he replies

Wondering if anyone has this kit they would like to sell or where I could still find one for sale

These are 3D prints that I use as templates to cut out the head gasket

Made the two valves, the plans call of the valves to made out of two big nails that come in the kit I didn't like that idea so I made the valves out of silver steel and used the small cnc lathe to machine them

Started on the rocker pivot post, still need to put a slot in the top that the rocker arm fit in