Ok, I know this might sound silly, but I can't get one of the valve covers off! Actually, it's just one screw that I can't get out, because I can't get to it. It's the one at the front of the engine, right by where the dipstick tubing runs, as well as the water pipe. Both are in my way, and I can't figure out how I ever got it on or off before (I did a few years back, but heck if I can remember how I did it). Any tips?
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