Gallery, Projects and General > Mod-Ups!

Pipe and Bolt Engine Mod-Up

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vtsteam:
Well Bertie, there will be other mod-ups, and first things first! :beer:

After drawing the cylinder and piston out, I could see I'd want more clearance at the top of the cylinder, since I'm thinking about doing this as a uniflow exhaust. So I added a little height to the cylinder (light blue). That means extending it somehow -- or making a head with a recess. Probably do the latter.

vtsteam:
This brought up another problem. The top of the cylinder -- the flange-- was just a little too small to put screws in to fasten a head. So I decided to widen it. I cut a thin ring from some 1" pipe and cut out a small section, and sprung it down to fit over the cylinder.

vtsteam:
Then I brazed it, and cooled it in wood ashes for a half hour -- don't want to crack it at this stage.

Manxmodder:
Make the engine components first,and do the blueprints after :lol: :lol: We're a bonkers breed us MadModders :loco:

I harvested some of the iron fittings from the lengths of gas pipe last night.
Some up to 2.5" dia,they were a real sod to unscrew due to the amount of hardened jointing compound and hemp around the threads so I ended up having to heat them up with the propane torch to free them.

I got a couple of straight cast iron nipple connectors,one of which looks a candidate for a cylinder.

Probably have to purchase a couple of end caps for head and piston.

I also need to split and flatten some tube tomorrow.......OZ.

vtsteam:
And finally cleaned it up:

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