Before installing the high pressure fuel pump, position the roller tappet in the lowest position by rotating the crankshaft. Otherwise the installation bolts may break due to the tension on the pump spring.

Keep away from foreign materials when assembling.

Do not reuse the bolt.

Do not reuse the high pressure fuel pipe.

When tightening the installation bolts of the high pressure fuel pump, pretighten the bolts by hand, and then fully tighten in turns in small steps (0.5 turns).

Install the component to the specified torques.

First, pretighten the fasteners by hand until they are not fastened anymore in order to have them inserted in place, and then using a torque wrench, fully tighten them to the specified torque.

If the bolts or nuts are not tightened in a straight line with the mating bolt holes or fittings, fuel leakage may occur due to broken threads.

Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

Apply engine oil to the O-ring (A) of the high pressure fuel pump, the roller tappet (B), and the protrusion (C). Also apply engine oil to the groove on the location where the protrusion (C) is installed.