Removal And Installation: Installation

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

Installation is in the reverse order of removal.

Install the exhaust manifold nuts in the numerical order as shown.

Fig 1: Exhaust Manifold Torque Sequence

Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION:

When using the heated oxygen sensor wrench, tighten to the middle of specified torque range, because the length of the Tool may increase the actual tightness. Do not tighten to the maximum specified torque range.
Before installing a heated oxygen sensor, clean the exhaust manifold threads using the oxygen sensor thread cleaner tool, and apply anti-seize lubricant.
Do not over-torque the heated oxygen sensors. Doing so may cause damage to the heated oxygen sensors.