ar0702p102002mrt

Tightening procedure for housing of fuel system high pressure pump

Type ar · topic 07.02 · version 0100 · 2017-10-20

Applies to: Engine 256.9

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.02 Injection pump, Plug-in pump, High pressure pump

EinPAS 15 Engine › 15.45 Engine management › 15.45.51 Injection pump/injection timer

Also applies to engines/gearboxes: 256 9**

AR07.02-P-1020-02MRT

Tightening procedure for housing of fuel system high pressure pump

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Engine

256.9

High pressure fuel pump, high pressure fuel pump housing

Number

Designation

Engine 256.9

BA07.02-P-1002-01MRT

Screw/bolt, high pressure fuel pump housing to crankcase

Stage 1

Nm

2

Stage 2

Nm

8

Stage 3

°

60

Tightening procedure for housing of fuel system high pressure pump

Do not use a pneumatic tool to remove/screw in screws (1 - 3).
Housing of fuel high-pressure pump or crankcase will otherwise be damaged.
Comply with listed tightening sequence.
Leaks and damage to housing of fuel high-pressure pump will otherwise occur.
Release screws (1 - 3) in reverse order to tightening sequence.

1

Tighten screws (1 - 3) in numerical order to stage 1. 



2

Tighten screws (1 - 3) in numerical order to stage 2. 



3

Tighten screws (1 - 3) in numerical order to stage 3. 


P07.02-2216-12

Referenced documents