Renault Clio: Diesel return pipe: Removal - Refitting

K9K, and 764 or 772

Renault Clio. Diesel return pipe: Removal - Refitting

IMPORTANT

Consult the safety instructions and cleanliness advice and the operation recommendations before carrying out any repairs (see Diesel injection: Repair precautions).

IMPORTANT

Before carrying out any work on the injection system, check using the Diagnostic tool :

Working on the circuit with the engine running is strictly forbidden.

IMPORTANT

Be careful when removing the injectors or the injection rail as there will be a quantity of fuel in the rail and the union.

IMPORTANT

Loosening a high pressure pipe union when the engine is running is strictly prohibited.

REMOVAL

I - REMOVAL PREPARATION OPERATION

Renault Clio. Diesel return pipe: Removal - Refitting

Renault Clio. Diesel return pipe: Removal - Refitting

Renault Clio. Diesel return pipe: Removal - Refitting

II - OPERATION FOR REMOVAL OF PART CONCERNED

Renault Clio. Diesel return pipe: Removal - Refitting

Note: Make preparations for the fuel outflow.

First stage in removing the injector fuel return unions

Renault Clio. Diesel return pipe: Removal - Refitting

Note: Take care not to dislodge the clip fully from its housing in case it becomes damaged when extracting the diesel return union.

Any clips that become completely separated from a diesel injector that has not been removed must always be replaced: to do this, it is essential that the diesel injector in question is removed (see 13B, Diesel injection, Diesel injector: Removal - Refitting, 13B-83) (13B, Injection).

Second stage in removing the injector fuel return unions

Renault Clio. Diesel return pipe: Removal - Refitting

Note: With sufficient force applied to the clip while pressing continuously with the screwdriver, the injector diesel return unions will come out effortlessly.

WARNING

Do not use the screwdriver as a lever on the injector fuel return unions.

Renault Clio. Diesel return pipe: Removal - Refitting

Note: If the diesel return pipe is to be reused, keep it in a sealed bag throughout the removal operation.

REFITTING

I - REFITTING PREPARATION OPERATION

WARNING

Only remove the blanking plugs from the protected components at the last possible moment.

Also, do not remove the components from their packaging until just before fitting them to the vehicle.

II - REFITTING OPERATION FOR PART CONCERNED

WARNING

Check the condition of the seals on the fuel return unions on the injectors.

Check that they are not cut, crushed and have not come out of their grooves.

Replace the entire diesel return pipe if one of the components is damaged.

Renault Clio. Diesel return pipe: Removal - Refitting

Note: Check that the diesel return unions are clipped on properly.

III - FINAL OPERATION.

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