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Author Message   Rick_oleson Tinkerer Username: Rick_oleson Post Number: 612 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Saturday, June 28, 2008 - 09:39 pm:    This is pretty common; I assume the return spring stretches over time until it won't pull the cam all the way to the end of its travel. Of course, you want to make sure it's clean and properly lubricated before doing anything to the spring, but you can shorten it a few coils and get it to work properly.