So I start to overhault the engine. Most of the parts are well under specs (pistons, cylinders, valves, CAMSHAFT, crankshaft do not have any wear……) so will be checked, measured and installed again. The gearbox was sent to a Rotax mechanic as I need special tools for dismantle it. Still there but the mechanic confirm that all parts are under tolerances too. It´s incredible the durable of this engines as this run on worst conditions:
- Heavy plane for just 100 cv
- With two persons at all the time.
- Lot of take offs and landings (school plane…)
- And running AVGAS
- Suppose 5.500 rpm or more all the time.....
I know a guy with more than 4.000 hours on an 80cv Rotax and it´s still in Good condition….