Oh every machine gets some wear and tear, heck I make my living based on that fact. I'm a machine repairman for GM. But I found these little gems,,,,,,,,,errrr,,,nuggets,,,,errrr,,,,,,gremlin s tucked in by the chain tenssioner. Shoot, fellow could have left me something valuable in there! How come nobody grinds up diamonds with these things, wouldn't mind finding something like that in there, lol.