Injection System

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Fig 1: Injection System Components Location With Torque Specification - V6 Biturbo

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Injection system V6 biturbo

1	High-pressure pump
2	High-pressure pump piston
3	Screws, M8 x 25 > Initial tightening 20 Nm (14.8 ftlb.) > Final tightening + 45°
4	Fuel collection pipe
5	Screw, M6 x 16 > Tightening torque 9 Nm (6.6 ftlb.)
6	Fuel collection pipe
7	Adapter > Tightening torque 40 Nm (29.5 ftlb.)
8	High-pressure fuel line/Coat thread on union nuts with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting./Observe the tightening sequence
9	High-pressure fuel line connection between bank 1 and 2/Coat thread on union nuts with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting./Observe the tightening sequence
10	Clamps
11	M6 screw
12	Fuel line flow
13	Support
14	Fuel pressure sensor for high pressure > Tightening torque 25 Nm (18.4 ftlb.)
15	M6 nut > Tightening torque 9 Nm (6.6 ftlb.)
16	Fuel pressure sensor for low pressure > Tightening torque 15 Nm (11.1 ftlb.)
17	Low-pressure fuel line distributor/Coat thread on union nuts with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting. /Observe specified tightening sequence > Tightening torque 8 Nm (5.9 ftlb.) > Tightening torque 60°
18	Screw, M6 x 12 > Tightening torque 9 Nm (6.6 ftlb.)

Fig 2: Shield For High-Pressure Pump Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Overview of shield for high-pressure pump

1	Shield
2	Crash support
3	Screws PT 7 x 22 > Tightening torque 14 Nm (10.3 ftlb.)
4	Screw, M6 x 12 > Tightening torque 8 Nm (5.9 ftlb.)
5	Screw, M6 x 25 > Tightening torque 8 Nm (5.9 ftlb.)

Location	Description	Type	Basic value
Fastening screws for ground lines for left cylinder head	Item 1	Tightening torque	9 Nm (6.6 ftlb.)
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Fastening screws for ground lines for left cylinder head
Ground line for right cylinder head	Item 1	Tightening torque	9 Nm (6.6 ftlb.)
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Ground line for right cylinder head
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Ground line for right cylinder head, bottom