I've got a halfway decent Crossman Blaze break barrel rifle that is a few years old. I put it away in the fall and it was fine. When I took it out a couple of days ago, the break action had no resistance at all, so something definitely broke with the piston. Not sure if it's worth saving or if it will cost more than it's worth to have someone look at it. I hate not fixing something that can be fixed. I've never taken an airgun apart, but may give it a go on the grounds that I probably can't make it worse. Any thoughts?