Dredger Engine Bling

Getting ready for an exhibition tomorrow.  The organisers want “works in progress” so I am taking the dredger engine.  In its present state it is more a dredger boiler than an engine, but I doubt that anyone will mind.

IMG_7934.JPGSo I spent the day inserting a lot of square nuts on stainless steel studs, and bolting on some valves.   Looks quite interesting?   The stainless nuts came from China and were inexpensive.  A pity to paint them black.

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The boiler is almost ready for pressure testing.  All of the parts are made, but sealant needs to be applied to the threads and joins, and possibly some gaskets.  I will do a hydrostatic test to 120psi, fix any leaks, then take it to the boiler inspector.  I am aiming to have it certified for 60psi, but will probably run it at maximum 50psi.

I have made the engine cylinder and the bronze cap which seals the vertical tube.  Looking forward to getting stuck into the engine.