Upper Manifold
UPPER INTAKE MANIFOLD TORQUE AND TIGHTENING SEQUENCE
Install the 6 injectors into the proper lower intake manifold bores in proper sequence as shown in the image (3, 5, 1, 2, 4, 6)
TIGHTEN
1. Tighten the upper intake manifold attaching studs on the first pass to 5 Nm (44 lb.in).
2. Tighten the upper intake manifold attaching studs on the final pass to 9 Nm (80 lb.in).
Throttle Body Attaching Studs 9 Nm (80 lb.in)
Intake Manifold Surface Flatness 0.10 mm (0.004 inch)