Exhaust Manifold: Service and Repair

EXHAUST MANIFOLD

REMOVAL











1. Disconnect negative battery cable.
2. Raise vehicle.
3. Remove exhaust pipe to manifold bolts.
4. Remove engine mount to frame fasteners (3,4).
5. Using suitable jack, raise engine enough to remove manifolds.

CAUTION: Do not damage engine harness while raising the engine.

6. Remove the engine mount.





7. Remove heat shield.
8. Remove manifold bolts using sequence provided.
9. Remove manifold and gasket.

CLEANING
Clean mating surfaces on cylinder head and manifold. Wash with solvent and blow dry with compressed air.

INSPECTION
Inspect manifold for cracks. Inspect mating surfaces of manifold for flatness with a straight edge. Gasket surfaces must be flat within 0.2 mm per 300 mm (0.008 inch per foot).

INSTALLATION











1. Install manifold gasket and manifold.
2. Install manifold bolts and tighten to 25 Nm (18 ft. lbs.).
3. Install heat shield and tighten nuts to 8 Nm (70 inch lbs.).





4. Install engine mounts (3).
5. Lower engine.

CAUTION: Do not damage engine harness while lowering the engine.

6. Install and tighten right and left side engine mount to frame fasteners (4).
7. Install exhaust flange to pipe bolts.
8. Lower vehicle.
9. Connect negative battery cable.