Installing the right high-pressure rail
NOTE:
TECHNICAL INFORMATION
When assembling, it is essential to observe screwing sequences and tightening torques.
Failure to comply with the regulations can lead to leaks and damage.
When assembling, it is essential to observe screwing sequences and tightening torques.
Failure to comply with the regulations can lead to leaks and damage.
NOTE:
The description is provided only at one component. The procedure is the same for all other components.
- Loosen screws (1).
- Slacken hold-down device (2).
NOTE:
TECHNICAL INFORMATION
Always install the high pressure line or rail free of distortion. To ensure distortion-free installation of the high pressure line and to avoid damaging the thread, it must be possible for both nuts to be screwed on to the injectors easily hand force.
Always install the high pressure line or rail free of distortion. To ensure distortion-free installation of the high pressure line and to avoid damaging the thread, it must be possible for both nuts to be screwed on to the injectors easily hand force.
- First insert the rail (2) at the high pressure pump connector, then lower it to the point where the ball heads are positioned inside the injector connections and the rail is correctly positioned.
- Then tighten the nuts (1) on the injectors so they are hand-tight.
- Next, hand-tighten the nut (3) of the high pressure pump.
- Lastly, mount screws (4) and hand-tighten.
- Tighten down screws (4).
TIGHTENING TORQUES SPECIFICATION
| Rail to cylinder head cover | ||
|---|---|---|
| M6x25 screw | Tightening torque | 10 Nm |
NOTE:
The description is provided only at one component. The procedure is the same for all other components.
- Tighten down screws (1).
TIGHTENING TORQUES SPECIFICATION
| Hold-down device to cylinder head cover | ||
|---|---|---|
| screw | Tightening torque | 13 Nm |
- Tighten nuts (1) on the injectors with the special tool 0 495 908 (37 1 150) .
TIGHTENING TORQUES SPECIFICATION
| High-pressure rail to injectors | ||
|---|---|---|
| Nuts | Tightening torque | 23 Nm |
- Tighten nut (3) on the high pressure pump with the special tool 0 491 277 (13 5 020) .
TIGHTENING TORQUES SPECIFICATION
| Fuel supply line/rail to high pressure pump | ||
|---|---|---|
| Nut | tightening torque | 30 Nm |
- Tighten down screws (4).
TIGHTENING TORQUES SPECIFICATION
| Rail to cylinder head cover | ||
|---|---|---|
| M6x25 screw | Tightening torque | 10 Nm |
- Connect plug connection (1) and lock.
Follow-up work
- Refer to INSTALLING IGNITION COILS OF CYLINDER BANK 1 .
- Refer to INSTALLING CONTROL UNIT HOLDER FOR CYLINDERS 1 TO 4 .
- Refer to INSTALLING THE COVER OF THE RIGHT DME CONTROL UNIT .
- Refer to CONNECTING ALL BATTERY GROUND LEADS .