Cylinder Head: Disassembly
WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If replacing the cylinder head, do not reuse the secondary timing chain tensioners, they must be replaced or damage to the engine may occur. Refer to Variable Camshaft Timing (VCT) Unit .
LH cylinder head
- 4.
- Clean and inspect the exhaust manifold. Refer to: Exhaust Manifold Cleaning and Inspection .
- Clean the exhaust manifold mating surface of the cylinder head with metal cleaner. Follow the directions on the packaging.
Material
: Motorcraft ® Metal Surface Prep / ZC-31-B
NOTE: 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.
RH cylinder head
- 11.
- Clean and inspect the exhaust manifold. Refer to: Exhaust Manifold Cleaning and Inspection .
- Clean the exhaust manifold mating surface of the cylinder head with metal cleaner. Follow the directions on the packaging.
Material
: Motorcraft ® Metal Surface Prep / ZC-31-B
NOTE: 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.
All cylinder heads
- 13.NOTE: RH shown, LH similar.
- Disconnect the fuel injector electrical connectors.
- Remove and discard the fuel injector bolts.
- Remove the fuel rail and fuel injectors.
NOTE: Pull out the fuel rails in the direction of the fuel injector axis or damage may occur to the fuel injectors.NOTE: When removing the fuel rails, the fuel injectors may remain in the cylinder heads and require the use of a Fuel Injector Remover tool to extract. Wiggling the injector by hand to break it loose may allow the injector to be removed by hand.
- 15.
Remove and discard the clips from all of the fuel injectors including any injectors that have remained in the cylinder head.
- 16.NOTE: Use minimal force to remove the fuel injectors that remained in the cylinder head with the Fuel Injector Remover tool or damage to the fuel injector assembly may occur.
Using the special tools, remove the fuel injectors that remained in the cylinder head. Use Special Service Tool: 307-005 (T59L-100-B) Slide Hammer., 310-206 Remover, Fuel Injector.
- 17.NOTE: Make sure to thoroughly clean any residual fuel or foreign material from the cylinder head, block and the general surrounding area of the fuel rails and injectors.NOTE: Do not use compressed air to clean the tip of the fuel injector.NOTE: Do not use a brush to clean the tip of the fuel injector.
Using the special tool, clean the cylinder head fuel injector bores. Use Special Service Tool: 310-205 Fuel Injector Brush.
- 19.NOTE: LH shown, RH similar.NOTE: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.
Using the special tools, remove the valve collet, valve spring retainer and the valve spring. Use Special Service Tool: 303-300 (T87C-6565-A) Set, Valve Spring Compressor., 303-350 (T89P-6565-A) Compressor, Valve Spring., 303-1249 Valve Spring Compressor.