- Clean the manifolds in
solvent.
Caution: Wear safety glasses in order to avoid eye damage.
- Dry the manifolds with compressed air.
- Inspect the exhaust manifolds for the following:
| • | Restrictions within the AIR injection passages |
| • | Damage to the gasket sealing surfaces |
| • | Damage to the take down studs |
| • | Restrictions within the exhaust passages |
| • | Broken or damaged heat shields (if applicable) |
- Measure the alignment or surface flatness of the exhaust manifold
flanges using a straight edge and a feeler gauge.
If the exhaust manifold is warped it must be replaced.
