Group 26, Exhaust, Secondary Air

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Fig 1: Tightening Sequence For Exhaust Manifold On Naturally Aspirated Engine, Cylinders 1 To 4

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1 to 12 - applies to both sides, always start at the timing-case cover

Fig 2: Identifying Exhaust Manifold Seal And Mount On Naturally Aspirated Engine, Cylinders 1 To 4

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1 - Exhaust manifold
2 - Exhaust manifold seal
3 - Studs M8;
5 - Hexagon nut, M8; replace; (check nuts by clicking once); observe correct tightening sequence → Tightening torque: 27 Nm (20 ftlb.) (check nuts by clicking once)

M6 screw; heat shield to exhaust manifold; → Tightening torque: 10 Nm (7.5 ftlb.)

Fig 3: Identifying Exhaust Manifold Seal And Mount On Naturally Aspirated Engine, Cylinders 5 To 8

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Exhaust manifold
Seal
Hexagon nut, M8; replace; (check nuts by clicking once); observe correct tightening sequence → Tightening torque: 27 Nm (20 ftlb.) (check nuts by clicking once)
M6 screw; heat shield to exhaust manifold; → Tightening torque: 10 Nm (7.5 ftlb.)

Fig 4: Identifying Secondary Air Pump With Mount

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Console
Secondary-air pump
Screw, M6; always use new aluminum screws → Initial tightening: 4 Nm (3 ftlb.) and → Final tightening: 90°
Screw element, M6; always use new aluminum screws → Initial tightening: 4 Nm (3 ftlb.) and → Final tightening: 90°