Just always seems to be uncovered in your photos?No grinding has been done done at all in the garage. The dust on the car does not as it will be washed soon enough before it gets painted.. And the engine is well covered up, with blanket and a sheet of cardboard on top og that to keep it dry and dust tree, all ports/spark plug holes are also blocked off. .
I probably phrased "grinding dust" poorly - I mean any dust/dirt, which looks likes it's blown in/under/around the tent, will be acting as grinding dust inside the engine when it rotates.
I worry about anything similar being uncovered in my pretty sealed garage - when I rebuilt my hemi, it was buttoned up as quickly as possible.