Removal Procedure
- Remove the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement.
- Clean the interface area of the rail regulator using proper degreasing materials and compressed air for drying.
- Loosen the pressure regulator using a commercial wrench WAF30. Grasp it by hand and pull it out while simultaneously turning it counterclockwise.
Warning: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
Important: Cleaning material must not penetrate the electric connector.
Installation Procedure
- Inspect and clean the threads and the sealing surface of the fuel rail.
- Inspect and clean the threads (1) and bite edge (2) of the common rail regulator.
- Lubricate the O-rings with fuel.
- Install the common rail regulator using a commercial wrench WAF30 counteracting with a wrench WAF35 at the hexagon of the housing.
- Prime the fuel system. Refer to Fuel System Priming.
Caution:
• Use care when servicing the fuel system components, especially the fuel injector electrical connectors, the fuel injector tips, and the injector O-rings. Plug the inlet and the outlet ports of the fuel rail in order to prevent contamination. • Do not use compressed air to clean the fuel rail assembly as this may damage the fuel rail components. • Do not immerse the fuel rail assembly in a solvent bath in order to prevent damage to the fuel rail assembly.
Important: The common rail regulator and O-ring must not be reused.
Caution: Refer to Fastener Caution in the Preface section.
Tighten
Tighten the common rail regulator to 60 N·m (44.3 lb ft) and turn the regulator 90 degrees in the opposite direction and then tighten to 85 N·m (62.7 lb ft).
