I went to the airfield and did some circuits until it got too busy, then put the plane away and started disconnecting the Rotax 503 engine. Ken and Todd got back from breakfast just in time to help remove the prop (I'd loosened the bolts, but had been bothered about dropping it) and then unbolt the engine and take it off. We then got the 582 installed on the engine mounts. Ken modified one of the exhaust mounts and got the exhaust manifold installed while I tightened up the engine mounts. When he went to meet his brother for lunch, I installed things and stuff, including running new wire for the coolant temperature sensor, then gave up and went home.
In the evening, we watched the series premier of Game of Thrones.