Installation Guide Lines (Injector) - Linhai M565Li T3 EFI Service Manual

CHAPTER 3 ENGINE
application
DO: Take extra care when installing new fuel
seal ring over injector inlet flange.
DO: Use proper lubricants on seal ring surfaces
to install injector in engine. Minimize time
between applying lubricant and inserting
injector /rail.
DO: Pulse (actuate) stuck closed or tip-leak
suspected injector (Actuate consists of one
pulse<5 sec duration at 9 to 15V).
DO: Pulse (actuate) injectors prior to a dry fuel
system leak test at engine/vehicle assembly to
reseat injector valves.
DO: Avoid any liquid contamination in the
injector area.
DO: Use care during connection of harness to
injector.
DO: Use recommended terminal lubricant on
mating connector.
DO: Return any dropped, damaged, or suspect
material with a tag that describes the problem.
3.5.2.10 Installation guide lines
Follow these guidelines to prevent damage to the injector and it's electrical interface
during the replacement or re-installation process.
Lubrication: Apply a light coating of lubricant to the lower injector seal ring. ISO
10 light mineral oil or equivalent is recommended.
The preferred technique is to apply the lubricant to the sockets the injectors are being
installed into, rather than directly to the seal ring itself. This will help minimize the
possibility of injector contamination.
Avoid applying lubricant over the director plate holes – this may restrict injector flow.
Do not dip the injector tip in lubricant.
All Multec 3 and Multec 3.5 injectors come from the factory with the seal rings
attached. The re-use of seal rings is not preferred when replacing an injector. If an
injector is to be re-used, and no new seal rings are available, take care to inspect each
seal ring for signs of damage. Even minor defects in the seal ring can lead to leakage.
Take extra care in installing seal ring over flange of injector inlet.
Carefully installing the harness connector will prevent terminal damage. Listen for a
M565Li T3 EFI SERVICE MANUAL 20.0
Prevent tearing seal ring during installation
Avoid damage to seal ring during installation.
Avoid contamination at seal.
To verify the injector failure
Injector valves may not reseat without fuel
after shipping and handling resulting in false
leakage.
Coil could short circuit.
Avoid terminal damage.
Minimize potential for terminal fretting corrosion.
Ensure fast and correct diagnosis of root cause.
CHAPTER 3 ENGINE PAGE. 3- 108