Just repowered my 1989 Catalina 36 Universal mp25xp with a rebuilt. Starts right up but when I take my finger off the ignition it just dies. I double-checked the glow plugs. It seems to work after I bleed the lines each time. After I bleed the lines it starts right up. Has no problem starting up for the day after the initial cold start. I think that air is getting into the line. I tightened all the pipe clamps along the line but that didn't work. I will change out the fuel lines tomorrow and hopefully, that is the issue. Can anyone think of any other issue that might be causing this?