Injector Replacement Techniques - Linhai M565Li T3 EFI Service Manual

CHAPTER 3 ENGINE
positive audible click from the connector retention device — this ensures that it is fully
engaged.
Avoid unnecessarily disconnecting/reconnecting the harness connector.
Wires routed in a manner that can allow them to become pinched between
components can result in a short circuit and a stuck open injector.
For injectors that require orientation for spray pattern, do not rotate the injector in the
fuel rail assembly to install the injector electrical connector. This may dislodge the
retaining clip, and result in improper spray orientation
3.5.2.11 Replacement Techniques
The following procedure outlines standard Multec 3 and Multec 3.5 Fuel Injectors
removal and replacement.
Warning: The injector and all associated hardware may be extremely hot.
Shut off ignition.
Disconnect negative battery cable to avoid possible fuel discharge if an accidental
attempt is made to start the engine.
Disconnect the electrical connector from the injector wiring harness.
Relieve fuel pressure
Remove the retaining clip from the fuel injector.
Remove the fuel line connection from the injector
Carefully clean debris from the interface surfaces. Do not damage seal mating
surfaces.
Remove the injector from the manifold
Apply a light coating of a lubricant to both the upper and lower injector seal ring of the
replacement injector.
Install the new injector into the manifold. Check that the injector is installed in the
original orientation to maintain proper spray targeting, and that the retaining clip is
properly seated on the injector and the fuel line
Install the retaining clip after connecting the fuel line
Tighten the injector mounting to the desired torque as mentioned in the manufacturer
manual
Tighten the fuel line
Re-install the injector electrical connector
M565Li T3 EFI SERVICE MANUAL 20.0
CHAPTER 3 ENGINE PAGE. 3- 109