I have a stainless ruger old army pistol. The The cylinder was bound up and I could not pull the hammer back. I disassembled it and it turns out the cylinder latch was all gummed up. I got it completely apart except I left the hammer plunger. Completely cleaned it and put it back together. I pulled the hammer back into full cock and pulled the trigger and it would not go past half cock. I disassembled again and I think the issue is the hammer plunger. It won't budge. I tapped out the pin and the plunger and spring should have popped out but they didn't. The plunger does not move. I have it sitting up soaked in kroil right now. Any ideas how to get it out if that does not work?