8 Fuel system
8.1 Check fuel injection pressure
Install fuel injector on fuel injector tester, remove test handle of fuel injector slowly, and check
the instant pressure when fuel is ejected out. If the measured valve is not within the limitation
range, please replace fuel injection gasket.
8.2 Check spray of fuel injector
Install fuel injector on fuel injector tester, and check the spray of fuel injector. If the quality of
spray is not good, please replace fuel injector parts. Refer to picture 55.
Picture 55 Check the spray of fuel injector
8.3 Check the sealing of fuel injector seat
Install fuel injector on fuel injector tester, raise the fuel pressure, and keep it at 12.7MPa for 10s.
If there is oil leakage, please replace fuel injector parts. Refer to picture 56.
Picture 56 Check the sealing of fuel injector seat
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