High Pressure Pump, Removing and Installing

High Pressure Pump, Removing and Installing

CAUTION!
Fuel system is under high pressure! Before opening the system, perform the procedure for releasing fuel pressure. Procedure, see => [ Releasing Pressure in High Pressure Area ] Releasing Pressure In High Pressure Area

• The removal and installation of the high-pressure fuel pump can only be performed on a cold engine.

• When installing the high-pressure fuel pump, make sure that no dirt enters the fuel system.

• Catch escaping fuel with a rag.

• The O-ring must always be replaced.

• High-pressure fuel lines must always be fastened free of tension.

Removing

- Remove engine cover => [ Engine Cover, Removing and Installing ] Engine Cover, Removing and Installing.

- Disconnect the electrical connector - 2 - from the Fuel Pressure Regulator Valve (N276).





- Open both fuel lines - arrows -.





- Remove the 2 bolts - arrows -.





- Carefully pull the high pressure fuel pump out. The roller tappet may stay in the cylinder head.

Installing

• Tightening specifications => [ High Pressure Pump with Fuel Pressure Regulator Valve, Assembly Overview ] High Pressure Pump With Fuel Pressure Regulator Valve, Assembly Overview

- Replace the O-ring for the high-pressure pump.

- Carefully place high pressure pump with sleeve (pay attention to the groove) in opening in cylinder head (check sleeve for damage first).

- Tighten bolts by hand.

- Before installing the fuel lines, check the torque of the connections on the high-pressure pump.

- Tighten the bolts crosswise with the required torque.

- Hand tighten the fuel supply line union nut so that it is free of tension and then tighten it.

- Connect the electrical connector - 2 - from the Fuel Pressure Regulator Valve (N276).





- If the fuse was pulled, insert it again.

• Check fuel system for leaks.