First of my computer acted up and still is doing so and secondly it has been rather busy in the real life!
I started cleaning the B6304F engine off all the grime and oil by spraying mineral spirit and compressed air onto it. This worked remarkably well and also the most stubborn oil started to come off!
Should be nice if no-one else needs this ore heap...
To get the new engine apart I needed a tool to hold the crank shaft locked when I open the center nut.
My friend and I tore the engine apart and those pictures will come next week in a episode called:
Engine - Old parts galore: Part VI