I bought the plans for this engine and wanted to build it,but then I saw the ready built engine on ebay and couldn´t resist...
The gears were made of ugly red plastic so I painted them with silver color. The displacer piston was not airtight enough which made the engine run slowly so I fixed it and painted the piston
also in silver.
The displacer cylinder is longer than necessary which reduces performance. Maybe one day I will fix this.
