Intake Manifold Torque Specifications

Intake manifold vacuum @ curb idle
Limit (Minimum) 60 kPa (18 in. Hg)
Bracket bolt 23 ± 3 Nm (17 ± 3 ft. lbs.)
Intake manifold nut 22 ± 1 Nm (16 ± 1 ft. lbs.)
Intake manifold plenum bolt and nut 18 ± 2 Nm (13 ± 1 ft. lbs.)
Intake manifold plenum stay bolt, front and rear
M8 18 ± 2 Nm (13 ± 1 ft. lbs.)
M10 35 ± 6 Nm (26 ± 4 ft. lbs.)

Manifold distortion of the installation surface
Standard Value 0.15 mm (0.006 in.) or less
Limit 0.20 mm (0.008 in.)