E 250 V8-5.4L (2008)
4. Remove and discard the 8 exhaust manifold nuts.
5. NOTE: It may be necessary to raise the exhaust Y-pipe for additional clearance when removing the exhaust manifold from the vehicle.
Remove the RH exhaust manifold and discard the gaskets.
6. Remove and discard the 8 exhaust manifold-to-cylinder head studs.
7. Clean and inspect the exhaust manifold.
Installation
All engines
1. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs, or other abrasive means to clean the sealing surfaces. These
may cause scratches and gouges resulting in leak paths. Use a plastic scraper to clean the sealing surfaces.
Clean the sealing surfaces with metal surface prep.
2. Install 8 new exhaust manifold-to-cylinder head studs.
^
Tighten to 12 Nm (9 lb-ft).
4.6L (2V) engine
3. Using new exhaust manifold gaskets, position the exhaust manifold and install the 8 new nuts in the sequence shown.
^
Tighten to 20 Nm (15 lb-ft).
5.4L (2V) engine
4. Using new exhaust manifold gaskets, position the exhaust manifold and install the 8 new nuts in the sequence shown.
^
Tighten to 25 Nm (18 lb-ft).
