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V-twin engine from scratch - yet another interpretation of how (not) to build a
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sorveltaja:
Bit of progress today:


Cylinder plates that are screwed in, are 1.5mm(0.059") mild steel, and have now 10.5mm(0.413") holes in them. Holes are to be bored to 13mm(0.511") on the lathe, as my small mill/drill press doesn't have the power to handle that big drills.
Rob.Wilson:
Another very interesting read/build  :thumbup: keep it coming


Cheers Rob
sorveltaja:
Cylinder plates bored to 13mm, and fitted to place:


The brass piece needs slots to be filed to give room for connecting rods:
sorveltaja:
First cylinder liner bored to bit under 12mm(0.472"):


That SS 2172 machines well for outside turning, but boring it is much more tedious.
Also the surface is really rough, so lot of manual labor is to be expected to get it smooth.
sorveltaja:
New brass cylinder bodies:


At first I was going to use the same method for cylinders, as on my previous test engine. Being that the cylinder liner is silver soldered to cylinder plate.

In this case, it would have been too complex. So I made some measurements, and noticed that I have just enough of that 28mm(1.10") brass bar to make two cylinder bodies, and perhaps the heads also.

Cylinder bodies still needs to be bored, for liners to fit in. Also some holes for screws. They have quite a rude cooling fins, but, after all, it suits well for the project.

Two remaining cylinder plates make an excellent drilling jigs anyway :dremel:.
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