Installing Fuel Connection Line

→ Avoid contact with hot parts or sources of ignition.

→ Use suction to remove ignitable vapors.

→ Attach warning sign in a clearly visible position.

→ Avoid contact with caustic fluid.

→ Wear personal protective gear.

→ Ensure that there is good ventilation.

→ If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

Information 

• Always perform a leak test in the high-pressure area after opening the fuel system. 
• This is particularly important if components are disassembled and replaced. 
• The threaded connections of the fuel lines must be coated with OKS 1710 lubricant (Part No. 000.043.303.27) before being screwed back on again. 
• Always allow a drying time of 60 minutes for the lubricant! 
• Blow residual fuel out of the lines and high-pressure pump (into a fuel-resistant container or cloth) using compressed air before installation. 
• The tightening specifications must be strictly observed. 

1. Coat union nuts, cone and thread of the fuel lines with OKS 1700 (Part No. 000.043.303.27).

   Allow a drying time of 60 minutes for the lubricant! 

2. Insert and secure the fuel line.

   Observe specified tightening sequence! 

   1. 2.1. Tighten union nuts 2-3 turns by hand.
   2. 2.2. Fit and tighten screws on the holding clamps.
3. Tighten union nuts according to the specified tightening sequence.
   Fig 1: Fuel Connection Line Nuts Tightening Sequence

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   1. Holding clamp at the center Tightening torque 10 Nm (7.5 ftlb.) 
   2. Tighten holding clamp on side 4-6 in the same way as the holding clamp at the center
   3. Connection on side 4-6 Tightening torque 20 Nm (15 ftlb.) 
   4. Connection on side 1-3 same as side 4-6
   5. Connection for line to high-pressure pump Tightening torque 20 Nm (15 ftlb.)