Removal and Installation: Installation

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. 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.
Fasten all new nuts twice to the specified torque.
Tighten new studs to 14.7 N.m (1.5 kg-m, 11 ft-lb)
Tighten the exhaust manifold nuts LH and RH to specification in the numerical order shown. Then retighten the nuts to specification.

A: Exhaust manifold (LH)
B: Exhaust manifold (RH)
<=: Front

Fig 1: Identifying Exhaust Manifold Nuts Tightening Sequence
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.