1999-2003 Ford 7.3L Diesel Fuel Bowl Rebuild Instructions ...

Filter Check Valve o-rings: Lubricate both o-rings with a small amount of diesel fuel and install on the valve body and check seat. Reassemble the check valve in the same order that it was disassembled and install the spring onto the check valve seat. Use O-ring #7 and #8 Assembled check valve tower This is the thread sealant that I