- Clean the exhaust manifolds in solvent.
Caution: Wear safety glasses in order to avoid eye damage.
- Dry the components with compressed
air.
- Inspect the exhaust manifolds for the following:
| • | 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.
Exhaust manifold surface flatness must not exceed 0.254 mm (0.01 in).
- If the surface flatness is not within specifications, the exhaust
manifold is warped and must be replaced.
