Installation Procedure
- NOTE:
The camshaft must be in the base circle position before the fuel pump is installed.
Use the EN-51092 Fuel Pump Installation Gauge (2) to ensure that the camshaft lobe is in the base circle position. At base circle position, the tool will be flush with the top surface of the lifter oil manifold assembly (1).
- NOTE:
Ensure that the high pressure fuel pump roller lifter is oriented properly, the camshaft is at base circle and the number 1 piston is at top dead center (TDC) on the exhaust stroke.
Fuel Pump Bracket Gasket (4) - Install NEW
- Fuel Pump (3) - Install
- Fuel Pump Bolt (1) - Install and tighten [2x] 25 N.m (18 lb ft)
- Position the fuel pump and fuel injector wiring harness and connect as necessary.
Fuel Feed Intermediate Pipe (1) - Install NEW - Fuel Feed Intermediate Pipe Replacement - Position 2
Fuel Feed Pipe (2) - Install - Fuel Feed Pipe Replacement (Short/Long Wheelbase) , or Fuel Feed Pipe Replacement (Chassis Cab Rear Tank)
Fuel Pump Insulator (1) - Install - Fuel Pump Insulator Replacement
Ensure the fuel pump bolt retainers (2) are installed in the high pressure fuel pump mounting holes before installing.
Refer to Fastener Caution .
Alternately hand-tighten the fuel pump bolts one turn at a time until the pump is fully seated. Trying to draw down the pump without even side-to-side tightening may result in pump plunger damage.