Exhaust Manifold Clean and Inspect

1. Clean the exhaust manifolds in cleaning solvent.
2. Dry the components with compressed air.





3. Inspect the exhaust manifolds for the following:
^ Damage to the gasket sealing surfaces (1)
^ Damage to the Exhaust Gas Recirculation (EGR) pipe fitting (2) (left manifold)
^ Damage to the threaded holes (3)
^ Restrictions within exhaust passages
^ Broken or damaged exhaust manifold heat shields (4) (if applicable)
^ Broken or damaged exhaust manifold





4. Measure the alignment or surface flatness of the exhaust manifold flanges using a straight edge and a feeler gauge. Refer to Specifications.
If the surface flatness is not within the specifications, the exhaust manifold is warped and must be replaced.