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Tail Dragger · 04-15-2021, 01:48 PM

Completed about 6 cycles of running a coat hanger in the passages, hosing for 2-3 minutes, compressed air, heat gun to dry, and compressed air again. There’s still a little more sand coming loose each time but I think I got the majority of it. A reputable individual with first hand experience with this motor said to run it, shouldn’t hurt anything. I ran a rifle cleaning brush through the oil passages with some solvent and got nothing, so that’s good. Got the main seal today and will be installing the pistons and crank. The thrust bearings absolutely needed sanding to fit the crank and achieve proper end play. The flathead screws that secure the thrust bearings are slightly proud of the thrust bearing surface and need filing down. Pictures coming soon. Not trying to hijack the thread, just thought I’d share my experience.

04-15-2021, 01:48 PM	#30
Tail Dragger Junior Member Join Date: Sep 2020 Posts: 11	Re: The new Burtz Mosel A engine Completed about 6 cycles of running a coat hanger in the passages, hosing for 2-3 minutes, compressed air, heat gun to dry, and compressed air again. There’s still a little more sand coming loose each time but I think I got the majority of it. A reputable individual with first hand experience with this motor said to run it, shouldn’t hurt anything. I ran a rifle cleaning brush through the oil passages with some solvent and got nothing, so that’s good. Got the main seal today and will be installing the pistons and crank. The thrust bearings absolutely needed sanding to fit the crank and achieve proper end play. The flathead screws that secure the thrust bearings are slightly proud of the thrust bearing surface and need filing down. Pictures coming soon. Not trying to hijack the thread, just thought I’d share my experience.