I can take constructive criticism, so I cleaned it again, with acetone, wiped inside and out until the towel stayed clean, blew it out several times, then reassembled and dropped the lifter in a can of 30w break in oil to pump it up. There were air bubbles but it never pumped up. So, maybe you can tell me why it doesn't work, because other than bad machining I don't know what else could be wrong.