I am replacing reed valves in my ox66 and noticed they come out about a half of inch then stop. I think it has to do with their shape.I noticed they are at an angle and there are slots where the two stud bolts are but cant seem to lift them out.I am afraid to put any pressure on them.Is there a trick to do that gets them out? I am trying to be as gentle as possible. I know they are a delicate part. Anyone had this problem?