Pic. 2.270. fuel injectors
Withdrawal
Relieve any residual pressure in the fuel line to prevent fuel ejection.
Attention! Cover the fuel line fitting with a rag to prevent fuel from escaping due to residual pressure in the fuel line.
Remove the fuel rail along with the injectors.
Attention! When removing the fuel rail, take precautions to prevent the injectors from falling out.
Attention! When removing the injectors, take measures to prevent fuel leakage.
Checking the technical condition
Pic. 2.271. Checking the resistance of the injector winding
Check the resistance of the injector winding by connecting an ohmmeter to its terminals (pic. 2.271).
Injector winding resistance: 15.9±0.35 Ohm at 20°C.
If the resistance is out of specification, replace the injector.
Installation
Pic. 2.272. Fuel burner
Install a new O-ring and heat shield on the injector (pic. 2.272).
Coat the O-ring with thinner, spindle oil, or gasoline.
Pic. 2.273. Nozzle installation
Install the injector into the fuel rail by turning the injector left and right (pic. 2.273).
Make sure the nozzle turns freely.
Note. Difficult rotation of the nozzle indicates a possible misalignment of the sealing ring. Remove the nozzle, insert it into the fuel rail and check again for ease of rotation.