What are the Intake Manifold torque specs?

Hi,

I'm not sure if you need the info for the upper or the lower intake manifold, so I attached both. (See pics below)

Let me know if this helps or if you have questions. Also, note that some of the torque specifications are in inch pounds and not foot-pounds.

Take care and let me know how things turn out.

Joe

See pics below.

Upper Intake Manifold (Plenum)

Torque:
16 Nm (12 lbft)

Sequence:
Tighten in a crisscross pattern from the center outward.
(Start with the center bolts, then alternate side-to-side toward the ends.)

Lower Intake Manifold

Torque (in two stages):

First pass: 12 Nm (9 lbft)

Final pass: 16 Nm (12 lbft)

Sequence:

There are 8 bolts total (4 per side).

Start from the inner center bolts (between cylinders 3 & 4)
then move outward and diagonally toward the ends.

This ensures even clamp pressure on the gasket and prevents air leaks.