Hi guys. Wanted to start off with so happy I found this forum and joined hoping I can help people out and hoping people can help me out! lol. I have a b61 mack truck. Its been sitting for years. I pulled it in the garage, turned the motor over and found out I have a stuck valve, which bent the push rod. Fixed all that. While I was in there I checked the pistons and everything and everything looked good and moved great. I got the head redone, all new gaskets and everything. Went to start it again and found out the plungers in the injection pump are stuck. Seen a guy on here said to put a screwd