I'm removing the inner valve springs for the new cam break in. I'm having trouble geting the locks to snap of the retainers. So far 4 came apart and 3 won't budge. The valve just keeps opening. Any tricks would help. One other thing, when i pump the cylinder with air(about 100 psi)it sounds like its leaking out of the botom, is this normal or do I have a leakdown problem?