How to rebuild HPOP 7.3L & bypass check valves 1999-2003

How to replace non serviceable Valve and bypass check valve for a high pressure oil pump for 7.3L 1999 -2003 ford super duty F-series trucks for the main drive gear seal just remove or cut the old one and then you just clean all around of the main drive gear and then add little bit of silicon all the way around and then put the new one in you can use a socket just look for the same size socket around of the seal to push it the seal in. socket and hammer always works First start after putting everything back in place    • Ford f-550 first start after repairi timin...      • Ford f-550 diesel back to work - after the...   The truck at work after the repairs