Installation Procedure
- Use the EN 48896 alignment gauge (1) to ensure that the camshaft lobe is in the base circle position. At base circle position, the tool will be flush with the cylinder head (2) as shown.
- Lubricate the high pressure fuel pump cylinder head bore with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
- Lubricate the valve lifter follower (5) with clean engine oil, and install it into the cylinder head bore.
- Fuel Pump O-Ring -Install a NEW fuel pump O-ring.
- Gasket -Install a NEW gasket.
- Fuel Pump -Install
- Start and hand-tighten the NEW high pressure fuel pump bolts (1) evenly.
- Fuel Pump Bolt -Tighten 25 N.m (18 lb ft)
- Fuel Feed Pipe @ Fuel Pump -Connect Metal Collar Quick Connect Fitting Service
- Electrical Connector -Connect
- Fuel Feed Intermediate Pipe Replacement (LGX) -Install
- Plenum Front Panel Replacement -Install
The camshaft must be in the base circle position before the high pressure fuel pump is installed.
Ensure that the valve lifter follower (5) is oriented properly, the camshaft is at base circle and the number 1 piston is at top dead center (TDC) on the exhaust stroke.
Lubricate the NEW O-ring seals with clean engine oil.
The locator tab on the fuel pump gasket should be positioned away from the engine block.
Ensure the plastic bolt retainers 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.
This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.