Using the special tool, tighten the coupling nut.
- Tightening torque - 37.5 Nm
Note: overtightening of the coupling nut is not allowed.
2. Check injection pressure and fuel spray pattern.
3. Install nozzles.
A) Install 4 new gaskets and injector seats in the cylinder head seat.
b) Install the injectors and tighten them with the special tool.
- Tightening torque - 65 Nm
Warning: re-tightening of the injector body is not allowed.
4. Installing the fuel return pipe.
A) Install 4 new gaskets, fuel return pipe and tighten 4 tie nuts.
- Tightening torque - 30 Nm
b) Connect the fuel return pipe to the fuel return hose.
5. Connect the high pressure fuel lines.
A) Install the high pressure fuel line union nuts on the injector and injection pump fittings.
b) Install the high pressure fuel line fittings.
- Tightening torque - 30 Nm
6. Install the high pressure fuel line clamp and tighten the nuts.
7. Remove air from nozzles.
A) Loosen the union nuts of the high pressure fuel lines on the injector side.
b) Turn the engine over with the starter and after bleeding the fuel pipes, tighten the nuts to the torque indicated above.
8. Start the engine and check for fuel leaks.
9. Check the idle speed and the maximum engine speed.