RADIATOR GP 7C8794 - Caterpillar

Before any service work is done on this fuel system, the outer surface of the injection pump housing must be clean.
1. Remove fuel lines (3). Remove two bolts (2) and remove flange and flange assembly (1). 2. Remove the check valve (4) from the flange assembly. 3. Remove the seven bolts (6) that hold the cover (5) to the pump housing.4. Remove the cover (5) from the pump housing. 5. Remove the spring (7) and the bypass valve from the pump housing.Install Check Valve And Bypass Valve
1. Install the bypass valve (2) and spring (1) in the pump housing. 2. Install the cover (3) on the pump housing. Be sure the spring (1) is in the bore in the lever.3. Install the seven bolts that hold the cover to the pump housing. 4. Install a new gasket (5) on the cover. Install a new check valve (4) in the flange assembly (6). Put the flange assembly in position on the cover. 5. Install a new gasket (7) on the flange assembly. Install flange (8) on the flange assembly with the bolts that hold them to the cover.end by: a) install fuel injection pump housing and governor