Exhaust Manifold Clean and Inspect

1. Clean the manifolds in solvent.

CAUTION: Wear safety glasses in order to avoid eye damage.

2. Dry the components with compressed air.
3. Inspect the exhaust manifolds for the following:
- Damage to the gasket sealing surfaces
- Damage to the EGR pipe fitting (if applicable)
- Damage to the take down studs
- Restrictions within the exhaust passages
- Broken or damaged heat shields (if applicable)





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