Carefully! When installing a new engine, after installing the high-pressure lines, it is necessary to tighten the injector clamps to the prescribed torque. To align the injectors when installing high-pressure lines, tighten the clamping clamps only «by hand». Inattention may result in engine damage.
Injection nozzles 1. Sealing collar: in the cylinder head cover; 2. Copper seal. ring: replace; 3. Seal ring: replace; 4. Injector: when re-installing removed injectors, high-pressure lines and clamping brackets, install them only on the cylinder from which they were removed.; 5. Seal ring: replace; 6. Return fuel line: to the fuel tank; with throttle valve; must not be bent, damaged or clogged; do not disassemble; The function of the throttle valve is to maintain residual pressure in the return fuel. highways; this control quantity is needed for the injectors to function; After replacement, let the engine idle for 2 minutes to remove air from the fuel. system and then check the fuel return lines for leaks; 7. Bolt: replace; 8 Nm + 180°; 8. Clamping bracket: for re-installation, indicate compliance, when installing, take into account the designation; 9. High pressure line: between the fuel distributor and injectors; install freely; Lubricate the threads of the union nuts with clean oil; 25 Nm; 10. Bolt; 22 Nm; 11. Fuel distributor; 12. Return fuel. hose; 13. Fuel pressure regulating valve -N276-: Replace after each removal; 80 Nm; After replacing the high-pressure pump or fuel pressure control valve -N276-, a readjustment must be carried out; 14. Seal ring: replace; 15. High pressure line; between the high pressure pump and the fuel distributor; install freely; Lubricate the threads of the union nuts with clean oil; 25 Nm; 16. Bolt: 8 Nm; 17. Fuel pressure sender -G247-: 1D0 Nm; 18. Nozzle: in the cylinder head cover
Mounting position of the clamping bracket
Each clamping bracket covers 2 injectors respectively. The thickening -arrow- of the clamping clamp points downwards.
Carrying out adaptation of correction values of fuel injection nozzles
Fuel quantity adjustment function (1MA) " is to adjust the volume of injected fuel individually for each cylinder of the Common Rail system according to all characteristics. Seven-digit adaptation values -1- (The data in the picture is for example only) printed on each nozzle. The printed values can be letters and/or numbers.
Top view of the nozzle 1. Checksumming; 2. Data Matrix Code; 3. Part number
After replacing the injector, the adaptation value must be written to the engine control unit. After replacing the engine control unit, it is necessary to transfer "adaptation values for injectors" into the new engine control unit. Additionally, check all other injectors for "fuel value adjustments (IMA) " regarding the correctness of entering all values. If the correct values are available in the engine control unit, under no circumstances should they be re-entered. The adaptation procedure is described in Guided Fault Finding. (The procedure is also described in Guided Functions.)
Visitor comments