Renault F4R - Page 609

13B-97
DIESEL INJECTION
High-pressure pipe between the rail and injector: Removal - Refitting
K9K, and 830
13B
a Clean the high pressure pipe unions between the rail
and the diesel fuel injectors (see 13B, Diesel injec-
tion, Diesel injection: Precautions for repair,
page 13B-1) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
1 - Removing one, two or three high pressure pipes
a
a Loosen the nuts for the high pressure pipe(s)
between the injector rail and the diesel fuel injec-
tor(s), using the tool (Mot. 1566).
a Remove:
-the nuts for the high pressure pipe(s) between the
injector rail and the diesel fuel injector(s) on the in-
jector rail side,
-the nuts for the high pressure pipe(s) between the
injector rail and the diesel fuel injector(s) on the in-
jector side,
-the high pressure pipes between the injector rail
and the diesel injectors concerned.
a Fit suitable blanking plugs on:
- the opening(s) on the injector rail,
- the opening of the diesel fuel injector(s).
2 - Removing the four high pressure pipes
a Disconnect:
- the connector (4) from the injector rail pressure
sensor,
- the fuel temperature sensor connector (5) ,
- the connector (6) for the fuel flow regulation sole-
noid valve,
- all heater plug connectors,
- the connector for each diesel injector.
a Unclip the injection wiring clips (7) .
a Remove the nut (8) from the injection wiring bracket.
a Separate the injection wiring.
1327
WARNING
Always hold the intermediate injector union in
place with a wrench when loosening the high
pressure pipes.
Do not damage the injector return nozzle.
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
135874