Cylinder Head - LH

WARNING: This page is about a different variant/trim than selected.

MATERIAL SPECIFICATIONS

Item	Specification
Motorcraft® Metal Surface Prep ZC-31-A	-
Motorcraft® Silicone Gasket Remover ZC-30	-

NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

All vehicles

Remove the LH camshafts. For additional information, refer to CAMSHAFT .
If equipped, remove the heat shield and disconnect the block heater electrical connector.
- Remove the block heater wiring harness from the engine.
  
  Fig 1: Location of Block Heater Electrical Connector And Heat Shield
  Courtesy of FORD MOTOR CO.
Disconnect the A/C compressor electrical connector.

Fig 2: Location of A/C Compressor Electrical Connector
Courtesy of FORD MOTOR CO.
Remove the nut and disconnect the generator B+ cable.

Fig 3: Location of Generator B+ Cable Nut
Courtesy of FORD MOTOR CO.
Disconnect the generator electrical connector.

Fig 4: Location of Generator Electrical Connector
Courtesy of FORD MOTOR CO.
Detach the wiring harness retainer from the generator.

Fig 5: Location of Wiring Harness Retainer At Generator
Courtesy of FORD MOTOR CO.
Remove the nut, bolt and the generator.

Fig 6: Location of Nut, Bolt And Generator
Courtesy of FORD MOTOR CO.
Detach the wiring harness pin-type retainer.

Fig 7: Location of Wiring Harness Pin-Type Retainer
Courtesy of FORD MOTOR CO.
Disconnect the 6 fuel injector electrical connectors (3 shown in illustration).

Fig 8: Location of Fuel Injector Electrical Connectors
Courtesy of FORD MOTOR CO.
Disconnect the Cylinder Head Temperature (CHT) sensor electrical connector.

Fig 9: Location of Cylinder Head Temperature (CHT) Sensor Electrical Connector
Courtesy of FORD MOTOR CO.
Disconnect the LH Camshaft Position (CMP) sensor electrical connector.

Fig 10: Location of LH Camshaft Position Sensor Electrical Connector
Courtesy of FORD MOTOR CO.
Disconnect the LH Heated Oxygen Sensor (HO2S) electrical connector.

Fig 11: Location of LH Heated Oxygen Sensor (HO2S) Electrical Connector
Courtesy of FORD MOTOR CO.
Disconnect the LH Catalyst Monitor Sensor (CMS) electrical connector.

Fig 12: Location of LH Catalyst Monitor Sensor (CMS) Electrical Connector
Courtesy of FORD MOTOR CO.
Remove the wiring harness retainer bolt from the rear of the LH cylinder head.

Fig 13: Location of Wiring Harness Retainer Bolt On Rear Of LH Cylinder Head
Courtesy of FORD MOTOR CO.
Remove the 2 LH catalytic converter bracket bolts.

Fig 14: Location of LH Catalytic Converter Bracket Bolts
Courtesy of FORD MOTOR CO.
Remove the 4 nuts (3 shown in illustration) and the LH catalytic converter.
- Discard the nuts and the gasket.
  
  Fig 15: Location of LH Catalytic Converter Nuts
  Courtesy of FORD MOTOR CO.
Remove the 3 bolts and the LH exhaust manifold heat shield.

Fig 16: Location of LH Exhaust Manifold Heat Shield Bolts
Courtesy of FORD MOTOR CO.
Remove the 6 nuts and the LH exhaust manifold.
- Discard the nuts and the exhaust manifold gasket.
  
  Fig 17: Location of Exhaust Manifold Gasket Nuts
  Courtesy of FORD MOTOR CO.
Clean and inspect the LH exhaust manifold. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION .
Remove and discard the 6 LH exhaust manifold studs.

Fig 18: Location of LH Exhaust Manifold Studs
Courtesy of FORD MOTOR CO.
Remove the LH cylinder block drain plug.
- Allow coolant to drain from the cylinder block.
  
  Fig 19: Location of Cylinder Block Drain Plug
  Courtesy of FORD MOTOR CO.
All-Wheel Drive (AWD) vehicles
Remove the 2 RH catalytic converter bracket bolts.

Fig 20: Location of Catalytic Converter-To-Bracket Bolts
Courtesy of FORD MOTOR CO.

All vehicles
Remove the 4 nuts and the RH catalytic converter.
- Discard the nuts and the gasket.
  
  Fig 21: Location of Cylinder Block Nuts And Gasket
  Courtesy of FORD MOTOR CO.
Remove the RH cylinder block drain plug or, if equipped, the block heater.
- Allow coolant to drain from the cylinder block.
  
  Fig 22: Location of RH Cylinder Block Drain Plug And Block Heater
  Courtesy of FORD MOTOR CO.
Remove the 4 bolts and the fuel rail and injectors as an assembly.

Fig 23: Location of Fuel Rail And Injectors Assembly Bolts
Courtesy of FORD MOTOR CO.
Disconnect the coolant bypass hose from the thermostat housing.

Fig 24: Location of Coolant Bypass Hose
Courtesy of FORD MOTOR CO.
Remove the 2 thermostat housing-to-lower intake manifold bolts.
- Remove the thermostat housing and discard the gasket and O-ring seal.
  
  Fig 25: Location of Coolant Bypass Hose
  Courtesy of FORD MOTOR CO.

NOTE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

Remove the 10 bolts and the lower intake manifold.
- Discard the gaskets.
  
  Fig 26: Location of Lower Intake Manifold Bolts
  Courtesy of FORD MOTOR CO.
Remove the bolt and the LH CMP sensor.

Fig 27: Location of LH Camshaft Position Sensor And Bolt
Courtesy of FORD MOTOR CO.
Remove the bolt and the upper LH primary timing chain guide.

Fig 28: Location of Bolt And Upper LH Primary Timing Chain Guide
Courtesy of FORD MOTOR CO.
Remove the 2 bolts and the LH secondary timing chain tensioner.

Fig 29: Location of LH Secondary Timing Chain Tensioner And Bolts
Courtesy of FORD MOTOR CO.

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.

Fig 30: Location of Valve Tappets

Courtesy of FORD MOTOR CO.

Remove the valve tappets from the cylinder head.
Remove and discard the M6 bolt.

Fig 31: Location of M6 Bolt
Courtesy of FORD MOTOR CO.

NOTE: Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.

NOTE: Aluminum surfaces are soft and may be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.

NOTE: The cylinder head bolts must be discarded and new bolts must be installed. They are a tighten-to-yield design and cannot be reused.

Remove and discard the 8 bolts from the cylinder head.
- Remove the cylinder head.
- Discard the cylinder head gasket.
  
  Fig 32: Location of Cylinder Head Bolts
  Courtesy of FORD MOTOR CO.

NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.

NOTE: Observe all warnings or cautions and follow all application directions contained on the packaging of the silicone gasket remover and the metal surface prep.

NOTE: If there is no residual gasket material present, metal surface prep can be used to clean and prepare the surfaces.

Clean the cylinder head-to-cylinder block mating surfaces of both the cylinder heads and the cylinder block in the following sequence.
1. Remove any large deposits of silicone or gasket material with a plastic scraper.
2. Apply silicone gasket remover, following package directions, and allow to set for several minutes.
3. Remove the silicone gasket remover with a plastic scraper. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.
4. Apply metal surface prep, following package directions, to remove any remaining traces of oil or coolant and to prepare the surfaces to bond with the new gasket. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.
Support the cylinder head on a bench with the head gasket side up. Check the cylinder head distortion and the cylinder block distortion. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION .