Williams Brothers V-4

 

     
Williams Brothers' V4 Steam Engine   Williams Brothers' V4 steam engine
     

Williams Brothers' V4 steam engineThis is an outstanding example of the Williams Brothers’ work.  It is a V-4 with 1 ¾” bore, uniflow, with very small poppet valve auxiliary exhaust valves.  The intake valves are cam operated piston valves of different design.  As one can see there are 4 drilled holes that take steam from the steam chest into the valve housing. The piston valves have 4 flat large diameters turned in them so the valve stem only has to move about 3/8” to open all of the 4 ports all the way. By having a cam operated valve train, the valve stays open until it needs to be closed.  It is a rapid opening and closing system. Williams Brothers' V4 steam engine

 

 

When we got the engine it had been run hard and hot and we had to soak it in a barrel of kerosene for a year before we could beat on it enough to free things up.  Other than that it is in good shape and very ruggedly built.

 

     
Williams Brothers' V4 steam engine   Williams Brothers' V4 steam engine
     

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Williams Brothers' V4 steam engine   Williams Brothers' V4 steam engine
     
Williams Brothers' V4 steam engine   Williams Brothers' V4 steam engine
     
Williams Brothers' V4 steam engine   Williams Brothers' V4 steam engine
     
Williams Brothers' V4 steam engine   Williams Brothers' V4 steam engine