my wife baught me a greddy oil filter block adapter for my birthday. i was about 15 seconds away from actually putting it on and i threaded the center piece on and it seemed like it stopped about an 1/8th of an inch short of being tight onto the block.... wtf. I know that a few people have them also and i was wondering if it is a common problem. Or did i just f. it up somehow???(dunno)