Q: Jean from South Africa here. I need some advice, if possible. I am in the process of rebuilding a one-of-a-kind high-wing pipe and fabric airplane and replacing the engine (an underpowered car engine) with a recently major overhauled Lycoming O-235-C1B engine.
The airframe flew with the car engine, but as this is seen as a major design change I need to treat the whole aircraft as a first flight and build up from there.
The engine has not been started since the overhaul. The engine needs a proper break-in to make sure the rings seat nicely.
My problem is how to properly run/break in the engine while it’s on the ground as the aircraft won’t be able to fly for long periods to achieve the proper power setting and time required.[Read more…]