Around 25 years ago I designed and built this rotary induction valve engine. it is loosely based on the common small engines used in R.C. aircraft and other models.
The carb and silencer are O.S. and Ervine items, but I made everything else.
It has a one inch bore and stroke using an aluminium alloy piston with two cast iron rings located with tiny bronze pegs.
The head and cylinder barrel are both machined from a billet cast from diesel engine pistons, the cylinder barrel is fitted with a honed cast iron liner.
The crankcase is machined from solid aluminium alloy round bar. It is fitted with a long bronze bush which supports the hardened and pressed up crankshaft, and forms an air tight seal with a close running fit.
The carb and silencer are O.S. and Ervine items, but I made everything else.
It has a one inch bore and stroke using an aluminium alloy piston with two cast iron rings located with tiny bronze pegs.
The head and cylinder barrel are both machined from a billet cast from diesel engine pistons, the cylinder barrel is fitted with a honed cast iron liner.
The crankcase is machined from solid aluminium alloy round bar. It is fitted with a long bronze bush which supports the hardened and pressed up crankshaft, and forms an air tight seal with a close running fit.