24, Fuel System

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Fig 1: Fuel Distributor Pipe Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Fuel distributor pipe

1	Fuel distribution pipe (fuel gallery)
2	Stopper; in 3 turns (tighten. loosen, tighten) > Tightening torque 25 Nm (19 ftlb.)
3	High-pressure sensor > Tightening torque 20 Nm (15 ftlb.)

Fig 2: Injectors (High-Pressure Fuel Injectors) Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Injectors (high-pressure fuel injectors)

1	Holder
2	Screw, M8 x 30 > Tightening torque 23 Nm (17 ftlb.)
3	Injector (high-pressure fuel injector)

Fig 3: Fuel Distribution Pipe Mount Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Mount for fuel distribution pipe

1	Screw, M6 x 16 > Tightening torque 10 Nm (7.5 ftlb.)
2	Screw, M6 x 25 > Tightening torque 10 Nm (7.5 ftlb.)
3	High-pressure line connection
4	Connection to injector (high-pressure fuel injector); in 3 turns (tighten, loosen, tighten) > Tightening torque 25 Nm (19 ftlb.)

Fig 4: High-Pressure Pump Components Location With Torque Specification (Turbo Engine)

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

High-pressure pump, turbo engine

1	High-pressure pump
2	High-pressure line; (3 turns; tighten. loosen, tighten) > Tightening torque 25 Nm (19 ftlb.)
3	Screw, M6, for low-pressure line > Tightening torque 10 Nm (7.5 ftlb.)
4	Low-pressure line; (3 turns: tighten, loosen, tighten); counter at hexagon on high-pressure pump > Tightening torque 25 Nm (19 ftlb.)
5	Screw socket. M8 > Tightening torque 23 Nm (17 ftlb.)
6	Screw socket, M6 > Tightening torque 10 Nm (7.5 ftlb.)
7	Protective plate
8	Screw, M6 x 20 > Tightening torque 10 Nm (7.5 ftlb.)
inset	Required line distance (5 to 8 mm) between components

Fig 5: High-Pressure Pump Components Location With Torque Specification (Naturally Aspirated Engine)

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High-pressure pump, naturally aspirated engine

1	High-pressure pump
2	High-pressure line; (3 turns: tighten, loosen, tighten) > Tightening torque 25 Nm (19 ftlb.)
3	Screw, M6, for low-pressure line > Tightening torque 10 Nm (7.5 ftlb.)
4	Low-pressure line; (3 turns: tighten, loosen, tighten); counter at hexagon on high-pressure pump > Tightening torque 25 (19ftlb.) Nm
5	Screw socket, M8 > Tightening torque 23 Nm (17 ftlb.)
6	Screw socket, M6 > Tightening torque 10 Nm (7.5 ftlb.)
7	Protective plate
8	Screw, M6 x 20 > Tightening torque 10 Nm (7.5 ftlb.)
inset	Required line distance (5 to 8 mm) between components

Fig 6: Intake Module Screws Tightening Sequence (Naturally Aspirated Engine And Turbo Engine)

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Tightening sequence for intake module applies to naturally aspirated engine and turbo engine

Fig 7: Intake Module On Naturally Aspirated Engine Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Intake module on naturally aspirated engine

1	Intake module
2	Decoupling module (fastening cart); observe tightening sequence > Tightening torque 15 Nm (11 ftlb.)
3	Screw, 5 x 16 > Tightening torque 4 Nm (3 ftlb.) and > Tightening torque 4 Nm (3 ftlb.)
4	Pressure sensor
5	Intake module seal; check that seal is aligned and fitted correctly!
6	Heat socket
7	Screw, 6 x 50 > Tightening torque 7 Nm (5 ftlb.)
8	Electronic accelerator
9	Seal
10	Ball socket

Fig 8: Activating Variable Intake Manifold On Naturally Aspirated Engine Components Location With Torque Specification

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Activating variable intake manifold on naturally aspirated engine

1	Pipe
2	Connecting piece
3	Variable intake manifold adjuster/adjusting unit
4	Lip seal
5	Connecting element
6	Vacuum unit with cover (actuator)
7	Screw, M5 x 16 > Tightening torque 4 Nm (3 ftlb.)
8	Driver
9	Connecting rod
10	Vacuum line

Fig 9: Intake Air Module On Turbo Engine Components Location With Torque Specification

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Intake air module on turbo engine

1	Intake module
2	Decoupling module (fastening part); observe tightening sequence > Tightening torque 15 Nm (11 ftlb.)
3	Screw, 5 x 16 > Tightening torque 4 Nm (3 ftlb.) and > Tightening torque 4 Nm (3 ftlb.)
4	Pressure sensor
5	Intake module seal; check that seal is aligned and fitted correctly!
6	Heat socket
7	Screw, 6 x 50 > Tightening torque 7 Nm (5 ftlb.)
8	Electronic accelerator
9	Seal
10	Ball socket