Inspection After Removal

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.

Surface Distortion

Check the surface distortion of the exhaust manifold mating surface with straightedge and feeler gauge.
Limit: 0.3 mm (0.012 in)

Fig 1: Checking Surface Distortion Of Exhaust Manifold Mating Surface Using Straightedge And Feeler Gauge
Courtesy of NISSAN NORTH AMERICA, INC.
If it exceeds the limit, replace exhaust manifold.

Surface Distortion

Check the surface distortion of the exhaust manifold mating surface with straightedge and feeler gauge.
Limit: 0.3 mm (0.012 in)

Fig 1: Checking Surface Distortion Of Exhaust Manifold Mating Surface Using Straightedge And Feeler Gauge
Courtesy of NISSAN NORTH AMERICA, INC.
If it exceeds the limit, replace exhaust manifold.