I had a track leaking off so i removed the barrel and piston and found the barrel had rust pits and chrome gone in it so i put a new one in it. The piston looks good other than a little rust behind the seal toward the idler so I replaced the seals on the outer barrel and new seal on the piston.Now whats happening, when i pump the track out it will stay intill i move the machine back and forth its leaking off a slow rate. Ive got the seal on the piston the right way. Anybody got any ideals.