Rotate the crankshaft and check the high pressure fuel pump cam (A) for pits, scores, or excessively wear. If needed, replace the exhaust camshaft.

Install the pump lifter (A) to the high pressure fuel pump cam.

Set the gauge (B) on the pump lifter and hold it.

Rotate the crankshaft 720 ° and measure the four cam lobes height. If the cam lobes are excessively worn, replace the exhaust camshaft.

NOTE: The high pressure fuel pump cam has four cam lobes.

Check the position of the cam (A) that drives high pressure fuel pump as shown. If the cam position angle is wrong as shown, rotate the crankshaft to set it.

Coat the pump lifter (A), the cam (B), a new O-ring (C), and around the bore of the lifter insert with clean engine oil.

Install the pump lifter and the high pressure fuel pump (D) with the O-ring. Temporarily tighten the bolts (E) in an alternate pattern until the high pressure fuel pump is in contact with the cylinder head.

NOTE: To prevent the O-ring from damaging, do not use any power tools (pneumatic or electric).

Lubricate the top of the new fuel joint pipe (C) and the threaded area (D) of the fuel rail and the high pressure fuel pump with polyethylene glycol of a new fuel joint pipe kit.

NOTE: Do not reuse the fuel joint pipe.

Tighten the fuel joint pipe nuts (E) by hand until the end of the joint pipe is seated on the fuel rail and the high pressure fuel pump.

Set the fuel joint pipe bracket (F) to the cylinder head, and loosely install the bolts (G).

Tighten the high pressure fuel pump mounting bolts (A) to the specified torque.

Tighten the fuel joint pipe bracket mounting bolt (B) to the specified torque.

Tighten the fuel joint pipe nut (C) to the specified torque in the numbered sequence shown.

NOTE: A crowfoot-type special tool increases the torque applied by the torque wrench. Refer to Service Precautions for details on how to recalculate the torque wrench setting.