I'm sure by now you got it... but someone once told me... "righty tighty, lefty loosey" ... like i was an idiot and couldn't figure it out... My response was... Is it "right" from above the engine, or "right" from under the engine... And thats where i lost them.
I had the same problem w/ mine the first time. apparently the dealer used an air socket to put it on, cuz the mech who finally did it, was swinging away at with with hammer for a couple minutes before it moved.