I would like to make a model airplane engine from scratch. I fly giant scale RC. I have been doing lots of chainsaw and wacker conversion. I own a good lathe and mill. I would like to take it to the next leve and make the whole engine.
I am envisioning a single cylinder two stroke. I would be piston ported. The layout would be conventional with the crank supported by two bearings on the front. I would use a walbro carb. The case would be made from bar stock. The displacement would be around 30CC. It would run on gasoline. The spark would come from an auto advance ignition unit.
The only thing that intimidates me is making the clyinder true, round and highly finished. I was thinking of a "shortcut". If I lined the aluminum cylinder with the steel tube from an automotive shock absorber. I could save lots of fussing? I would only have to make my aluminum piston and use one or two rings. The exterior of the cylinder would be heated and the liner frozen before assembly.
I am envisioning a single cylinder two stroke. I would be piston ported. The layout would be conventional with the crank supported by two bearings on the front. I would use a walbro carb. The case would be made from bar stock. The displacement would be around 30CC. It would run on gasoline. The spark would come from an auto advance ignition unit.
The only thing that intimidates me is making the clyinder true, round and highly finished. I was thinking of a "shortcut". If I lined the aluminum cylinder with the steel tube from an automotive shock absorber. I could save lots of fussing? I would only have to make my aluminum piston and use one or two rings. The exterior of the cylinder would be heated and the liner frozen before assembly.