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Marcher twin cylinder marine steam

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Team ricky:
Hi Chaps,

I’m new here and wanted to share a nice build log of two lots of twin cylinder marcher engines :)

Admiral_dk:
Don't think that I've seen this design before - but happy to see more  :)

Oh .... and welcome.

Per     :cheers:

Team ricky:
So I’m planning on building one as a piston valve engine and one as slide valve  ;)


Should be interesting to try both out , I have just looked through the drawings and the piston valve version is a bit sketchy, When I get into it I’ll post some pictures !

Team ricky:
So as far as I can see on the drawing there are two options within the piston valve configuration,

This makes for interesting building when you don’t know this in advance!

This picture details how you are not going to build the cylinders and piston 😂

Team ricky:
This picture shows how it is to be built, however not very detailed for the piston valve itself as it needed a re-design….

The right side of the cylinder chest is to be cut off entirely, then the steam will come into the top of the cylinder via a banjo bolt, Problem is as drawn in the first picture the piston valve won’t work as there is no steam exit provided for in the lower half of the cylinder-piston arrangement.

I have made the cylinder chest as per second drawing, Then made the piston valve from ground SS stock and modified to allow steam to pass through the centre of the valve to the top to allow for a steam exhaust.

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