Installing High-Pressure Pump

Information 

• Replace O-ring. 

1. Insert roller tappet into the cylinder head.
2. Turn the crankshaft until the roller tappet is set to the lowest point.
3. Insert high-pressure pump -8-  and screw-in screws -7-  by hand.

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   Screws on high-pressure pump

4. Coat thread on union nuts with Microgleit DF 977S. Observe a drying time of at least 5 minutes before fitting.
5. Align fuel lines -6-  without tension and screw in union nuts -5-  hand-tight.

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   Fuel lines (high-pressure)

6. Tighten screws on high-pressure pump -7-  .

   > Initial tightening 20 Nm (14.8 ftlb.) 

   > Final tightening + 45° 

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   Screws on high-pressure pump

7. Tighten union nuts on fuel high-pressure lines -5-  .

   Low-pressure side:

   > Tightening torque 8 Nm (5.9 ftlb.) 

   > Torque angle 60° 

   High-pressure side:

   > Tightening torque of 10 Nm (7.4 ftlb.) 

   > Torque angle 60° 

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   Union nuts on fuel lines (high-pressure)

8. Clip electric plug connection to high-pressure pump -4-  and lock it.

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   Electric plug connection to high-pressure pump

9. Engage lines for high-pressure pump -2-  in support -3-  .

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   High-pressure pump lines

10. Fit sound absorber on high-pressure pump -1-  .

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    Sound absorber for high-pressure pump