AD07.61-P-7000-02D | Internal leaks, testing hydraulics, fuel pressures and internal leaks (ME-SFI) |
| Scope of test | Measuring instrument/ Test connection | Operation/Requirement | Specified value | Possible cause/Remedy | ||
1.0 | Internal leaks in fuel system Note on test connection: Pressure tester connected to test connection | Switch off engine: After 30 minutes: | > 3.0 bar > 2.5 bar | Rapid pressure drop: Non-return valve to fuel pumps Slow pressure drop: Check fuel injectors Diaphragm pressure regulator/O-rings | |||