Common Rail Regulator Replace
Important: Do not allow smoking or the use of open flames in the area where work on the fuel system is taking place. Anytime work is being done on the fuel system, disconnect the negative battery cable, except for those tests where battery voltage is required.
Remove
- Remove the common rail assembly. Refer to Fuel Common Rail Replace .
- Clean interface area of the rail regulator using proper degreases materials and compressed air for drying.
Note: Cleaning material must not penetrate the electric connector.
- Loosen the component using a commercial wrench WAF30 grasp it by hand and pull it out simultaneously turning it counter-clockwise.
Install
Important: This common rail regulator and O-ring must not be reused.
Important: Do not blow air using an air gun onto pipe connectors of the injectors, the injection pump and the common rail pipe threads. If contaminated, wipe clean with an oilpaper.
Important: Do not wipe clean with a towel onto the pipes connectors of the injectors, the injection pump and the common rail pipe threads. If contaminated, wipe clean with an oilpaper.
- Inspect and clean the thread and the sealing surface of the rail.
- Inspect and clean thread (a) and bite edge (b) of the common rail regulator.
Note: Inspect sealing surfaces of the DRV and the rail or the high pressure pump. Only concentric grooves are allowed. No cuts in radial direction are tolerable. Inspect the Torx screws or the flange screw concerning any damages.
- 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.
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 85 N•m (62.7 lb-ft).
- Do the fuel priming. Refer to Fuel Priming .