Hi Everyone. Tore down the cylinder block assembly for my 51 Super A. I need to find out about the pressure regulator seat, ball, and spring. Its the only item I havent been able to get out. Its items 26, 27, 28, and 29 in the parts catalog. Its about 1 inch diameter and has two slots in it. Is there a tool that will get it out? Do I need to take it out? I took it apart to clean out all the old gummed up fluid. I have a re-build kit for all the O-rings, but wasn't sure about this one. Everything came apart REALLY hard, but all the machined surfaces seem fine, no rust or pitting. The picture shows the pressure regulating valve piston, which lifeted out, and the seat is underneath.