I remember tearing into one of these that died, and found similar things. What was interesting too was that it seemed to be caused by a screw coming loose. The

I remember tearing into one of these that died, and found similar things. What was interesting too was that it seemed to be caused by a screw coming loose. The entire head assembly rides on a bearing, which is bolted to the chassis, usually on both ends. If I remember right, this one was only bolted on one end, the screw didn't have any thread locking compound on it. It came loose, instant head crash.