I purchased an engine on ebay RB S7(yes I am aware I may have gotten screwed) But since it is freezing balls here in Michigan I cannot really run it. So what symptoms or characteristics do you look for when evaluating the pinch condition? I have now been scared by another post saying his engine "was so worn out he could turn the flywheel over by hand with a glow plug in". Well if that means worn out, then both of mine(RB & stocker) are trash. There is definitely compression but how would I know what good is. So what should a solid engine feel like when turning it over by hand with the flywheel? Maybe you have an even better test? Thanks