Removal and Installation: Installation

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Installation is in the reverse order of removal.

Install new exhaust manifold gasket with the top of the triangular up mark on it facing up and its coated face (gray side) toward the exhaust manifold side.

Fig 1: Identifying Triangular Up Mark On Exhaust Manifold Gasket
Courtesy of NISSAN NORTH AMERICA, INC.
Tighten the exhaust manifold nuts (LH) and (RH) to specification in the numerical order shown below. Then retighten the nuts to specification in the numerical order shown below.

Fig 2: Identifying Tightening Sequence Of Exhaust Manifold Mounting Nuts
Courtesy of NISSAN NORTH AMERICA, INC.
Before installing new air fuel ratio A/F sensors, clean the exhaust system threads using suitable tool and apply anti-seize lubricant.
Oxygen sensor thread cleaner: (J-43897-12)

Oxygen sensor thread cleaner: (J-43897-18)
CAUTION:
- Do not over tighten the air fuel ratio A/F sensors. Doing so may cause damage to the sensor, resulting in the MIL coming on.