Installing Fuel Distributor Pipe

Information 

The tightening specifications for the basic engine are stored centrally.

> 1X00IN TECHNICAL VALUES

/

> 2X00IN TECHNICAL VALUES

or

> 1001IN TIGHTENING TORQUES, TIGHTENING SEQUENCES AND ASSEMBLY OVERVIEWS .

Tightening torques and assembly instructions for other assemblies (e.g. chassis, electrics, transmission or body) or for peripheral engine equipment can be found in the corresponding documents.

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Fuel distributor pipe

1. Using the leak test equipment, blow the fuel out of the high-pressure pump and the high-pressure line into a cloth.

   Shake the fuel distributor pipe over a cloth to remove fuel residues.

   > 243001 CHECKING FUEL DISTRIBUTOR PIPE FOR LEAKS .

2. Fit fuel rail on the engine by twisting it -arrow-  .

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   Fuel rail in engine

   Information 

   When fitting the union nuts, make sure that the connection taper of the high-pressure line is loose in the injector. It should be possible to screw on the union nut easily without greasing it and without the use of force (check that it is straight and screws on easily). Loosen the injector retainers and correct the positions of the various components if necessary.

3. Fit fuel rail.

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   High-pressure fuel distribution

   1. 3.1 Carefully lift up the coolant vent line at the rear if necessary and slide the fuel rail into installation position.

      Information 

      When fitting the union nuts, make sure that the connection taper of the high-pressure line is loose in the injector. It should be possible to screw on the union nut easily without greasing it and without the use of force (check that it is straight and screws on easily). Loosen the injector retainers and correct the positions of the various components if necessary.

   2. 3.2 Screw fuel rail on loosely. Screw union nuts loosely onto the injectors.

      Only fit screws and union nuts -1- loosely until everything fits! 

   3. 3.3 Also fit the high-pressure line -3-  between the rail and high-pressure pump.
4. Fit screws on fuel distributor pipe (fuel rail) -1 and 2-  .

   The screw on the thermostat housing is longer.

   The rear right screw can only be reached using a long, thin Torx wrench.

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   Mount for fuel distributor pipe

   1	Screw, M6 x 16
   2	Screw, M6 x 25
   3	Connection for high-pressure line
   4	Connection to injector (high-pressure fuel injector)

5. When all threaded joint positions fit correctly and without tension, tighten all threaded joints according to the prescribed tightening torques.

   The union nuts for the injectors and the high-pressure feed line must first be tightened initially, then loosened and then tightened finally.

   Use an open socket > Nr.18-1 - socket-wrench insert > Socket  or similar tool to screw on the injectors.

   Fasten the high-pressure line with an > Nr.185 - open-ended socket ring wrench and a torque wrench.

   The specified tightening torques must always be observed.

   > 2X00IN TECHNICAL VALUES - GROUP 2 .

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   Socket

6. Check the high-pressure system for leaks.

   > 243001 CHECKING FUEL DISTRIBUTOR PIPE FOR LEAKS .

7. Plug in electric plug connection on the high-pressure sensor. -2- 

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

High-pressure fuel distribution