relaxedmitch
+1y
I don't know what kind of clear you are using but i've done and had tons of smoothed motors over the year and they all have been cleared and buffed and I never had one turn yellow. I do it much the same way that Robbie does his engines, we use roll locks, die grinders, numerous different small heads, and we have a little pneumatic belt sander that also works well. We then prime, block the areas we can, use a soft block or a taco block on the others, final prime, hand sand, paint, clear, buff and i've never had any issues, goodluck with your engine.