Cylinder Heads
SPECIAL TOOLS DESCRIPTION
| Installer, Crankshaft Front Oil Seal 303-646 | |
| Installer, Crankshaft Vibration Damper 303-102 (T74P-6316-B) | |
| Aligner, Camshaft 303-530 | |
| Tensioner, Timing Chain 303-532 | |
| Alignment Gauge, Crankshaft 303-645 | |
| Remover/Installer, Crankshaft Rear Oil Seal 303-647 | |
| Adapter for 204-185 204-208 (T95T-5310-AR2) | |
| Lifting Brackets, Engine 303-050 (T70P-6000) | |
| Spreader Bar 303-D089 (D93P-6001-A3) |
MATERIAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Motorcraft Metal Surface Cleaner ZC-21 | WSE-M5B392-A |
| Silicone Gasket and Sealant TA-30 | WSE-M4G323-A4 |
| Motorcraft SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP (in Canada Motorcraft SAE 5W-20 Super Premium Motor Oil CXO-5W20-LSP12) or equivalent | WSS-M2C930-A |
CAUTION:
The gasket sealing surfaces on the cylinder head and cylinder block must be clean and dry.
CAUTION:
The use of sealing aids (aviation cement, copper spray and glue) is not permitted. The gasket must be installed dry.
CAUTION:
The new gasket has a film coating which is crucial to the gasket's ability to seal correctly. Do not scratch the gasket.
CAUTION:
Cylinder head machining or milling is not authorized by Ford Motor Company. Cylinder head flatness must be within 0.0254 mm (0.001 in) across a 38.1 mm (1.5 in) square area.
CAUTION:
Do not allow the dowels to scratch the sealing surface of the cylinder head during cylinder head installation.
- Lightly oil the new cylinder head bolts and allow to drain for a few minutes before installing.
- Install a new gasket and position the RH cylinder head on the engine.
- Install and tighten the RH head bolts in 4 stages in the sequence shown.
- Stage 1: Tighten bolts 1 through 10 to 20 Nm (15 lb-ft).
- Stage 2: Tighten bolts 1 through 10 to 35 Nm (26 lb-ft).
- Stage 3: Tighten bolts 1 through 10 to 45 Nm (33 lb-ft) and an additional 90 degrees.
- Stage 4: Tighten bolts 1 through 10 an additional 90 degrees.
- Install the 2 end bolts and tighten in 2 stages.
- Stage 1: Tighten to 20 Nm (15 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
- Lightly oil the new cylinder head bolts and allow to drain for a few minutes before installing.
- Install a new gasket and position the LH cylinder head on the engine.
- Install and tighten the LH head bolts in 4 stages in the sequence shown.
- Stage 1: Tighten bolts 1 through 10 to 20 Nm (15 lb-ft).
- Stage 2: Tighten bolts 1 through 10 to 35 Nm (26 lb-ft).
- Stage 3: Tighten bolts 1 through 10 to 45 Nm (33 lb-ft) and an additional 90 degrees.
- Stage 4: Tighten bolts 1 through 10 an additional 90 degrees.
- Install the 2 end bolts and tighten in 2 stages.
- Stage 1: Tighten to 20 Nm (15 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
- Install the valve tappets and shims in their original locations.
- Position the RH camshafts on the camshaft journals.
- Install the RH camshaft bearing caps.
- Position the bearing caps.
- Install the bearing cap bolts. Tighten the bolts in 3 stages in the sequence shown.
- Stage 1: Hand-tighten.
- Stage 2: Tighten to 6 Nm (53 lb-in).
- Stage 3: Tighten an additional 90 degrees.
- Position the LH camshafts on the camshaft journals.
- Install the LH camshaft bearing caps.
- Position the bearing caps.
- Install the bearing cap bolts. Tighten the bolts in 3 stages in the sequence shown.
- Stage 1: Hand-tighten.
- Stage 2: Tighten to 6 Nm (53 lb-in).
- Stage 3: Tighten an additional 90 degrees.
- Using a feeler gauge, confirm that the tappet and shim clearances are within specification. For additional information, refer to VALVE CLEARANCE CHECK in this article.
- If tappet and shim clearances are not within specification, adjust the clearance. For additional information, refer to VALVE CLEARANCE ADJUSTMENT in this article.
- Install the special tool.
- Turn the crankshaft to 45 degrees ATDC. The crankshaft keyway will be in the 6 o'clock position.
- Install the special tool.
- Position all of the camshafts so the flats of the camshafts are facing upward.
- Install the LH secondary timing chain tensioner and 2 bolts.
- Tighten to 11 Nm (8 lb-ft).
- Install the LH variable cam timing (VCT) unit, exhaust camshaft sprocket and timing chain as an assembly.
- Using new bolts, install the LH VCT unit and exhaust camshaft sprocket bolts finger-tight.
- Remove the locking pin from the LH secondary timing chain tensioner.
- Install the RH secondary timing chain tensioner and 2 bolts.
- Tighten to 11 Nm (8 lb-ft).
- Install the RH VCT unit, exhaust camshaft sprocket and timing chain as an assembly.
- Using new bolts, install the RH VCT unit and exhaust camshaft sprocket bolts finger-tight.
- Remove the locking pin from the RH secondary timing chain tensioner.
- Reset the timing chain tensioners.
- Hold the lever toward the tensioner piston.
- Using finger pressure, compress the tensioner.
- Push the lever down and install a drill rod to lock the piston.
- Install the special tool on the LH head.
- Position the LH timing chain and crankshaft gear.
- Position the timing chain over the LH intake camshaft sprocket.
- Position the crankshaft gear in the timing chain.
- Install the LH timing chain guide and bolt.
- Tighten to 11 Nm (8 lb-ft).
- Install the LH timing chain tensioner arm and nut.
- Tighten to 11 Nm (8 lb-ft).
- Install the LH timing chain tensioner.
- Install the timing chain tensioner and bolts, and remove the drill rod.
- Tighten the LH exhaust camshaft sprocket and variable camshaft timing (VCT) unit bolts in 2 stages.
- Stage 1: Tighten to 35 Nm (26 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
- Remove the special tool.
- Install the special tool on the right cylinder head.
- Position the RH timing chain over the RH intake camshaft sprocket and over the crankshaft gear.
- Install the RH timing chain guide and bolt.
- Tighten to 11 Nm (8 lb-ft).
- Install the RH timing chain tensioner arm.
- Tighten to 11 Nm (8 lb-ft).
- Install the RH timing chain tensioner.
- Install the timing chain tensioner and bolts, and remove the drill rod.
- Tighten the RH exhaust camshaft sprocket and VCT unit bolts in 2 stages.
- Stage 1: Tighten to 35 Nm (26 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
- Remove the special tool.
- Remove the special tool.
- Carefully insert the bush carrier into the VCT unit, compress ring seals with fingers as required. Fully seat the bush carrier by hand before fitting the bolts and nut.
- Tighten the bolts to 20 Nm (15 lb-ft).
- Tighten the nut to 10 Nm (89 lb-in).
- Install new engine front cover gaskets.
- Apply silicone gasket and sealant in the 8 places shown.
- Install the engine front cover.
- Position the engine front cover on the cylinder block.
- Loosely install the bolts.
- Tighten the bolts in 2 stages in the sequence shown.
- Stage 1: Tighten to 5 Nm (44 lb-in).
- Stage 2: Tighten to 10 Nm (89 lb-in).
- Using the special tool, install a new front crankshaft seal.
- Apply a bead of silicone gasket and sealant to the keyway.
- Using the special tool, install the crankshaft pulley.
- Install a new bolt and using the special tool to hold the pulley, tighten in 4 stages.
- Stage 1: Tighten to 80 Nm (59 lb-ft).
- Stage 2: Loosen the bolt 2 complete turns.
- Stage 3: Tighten to 50 Nm (37 lb-ft).
- Stage 4: Tighten an additional 90 degrees.
- Install the 8 new LH exhaust manifold studs.
- Tighten to 19 Nm (14 lb-ft).
- Install the new LH exhaust manifold gasket and the heat shield stud bolt.
- Tighten to 50 Nm (37 lb-ft).
- Install the LH exhaust manifold and the 8 new nuts.
- Tighten the nuts to 25 Nm (18 lb-ft) in the sequence shown.
- Install the LH exhaust manifold heat shield and 4 bolts.
- Tighten to 3 Nm (27 lb-in).
- Install the 8 new RH exhaust manifold studs.
- Tighten to 19 Nm (14 lb-ft).
- Install the new RH exhaust manifold gasket and the heat shield stud bolt.
- Tighten to 50 Nm (37 lb-ft).
- Install the RH exhaust manifold and the 8 new nuts.
- Tighten the nuts to 25 Nm (18 lb-ft) in the sequence shown.
- Install the RH exhaust manifold heat shield and 4 bolts.
- Tighten to 3 Nm (27 lb-in).
- Install a new gasket, EGR tube and 2 nuts.
- Tighten to 20 Nm (15 lb-ft).
- Install new valve cover gaskets.
- Apply 4 beads of silicone gasket and sealant as shown.
- Install the LH valve cover.
- Tighten the bolts in the sequence shown to 10 Nm (89 lb-in).
- Install the RH valve cover.
- Tighten the bolts in the sequence shown to 10 Nm (89 lb-in).
- Install new intake manifold gaskets.
- Install the intake manifold, the 7 bolts and the 3 studs.
- Tighten the 7 bolts and the 3 studs in the sequence shown to 20 Nm (15 lb-ft).
- Install a new gasket, the throttle body adapter and the 4 bolts.
- Tighten to 10 Nm (89 lb-in).
- Install new O-ring seals, the coolant bypass housing and the 4 bolts.
- Tighten to 10 Nm (89 lb-in).
- Connect the 2 throttle body coolant hoses.
- Install the 2 radio interference ignition capacitors and the 2 nuts.
- Tighten to 10 Nm (89 lb-in).
- Connect the exhaust manifold tube to the exhaust gas recirculation (EGR) system module.
- Tighten to 40 Nm (30 lb-ft).
- Install the crankcase vent tube.
- Install the 8 ignition coils and bolts.
- Tighten to 5 Nm (44 lb-in).
- Install a new O-ring seal, oil level indicator tube and nut.
- Lubricate the new O-ring seal and engine mating surface with clean engine oil.
- Tighten to 6 Nm (53 lb-in).
- Install the crankshaft position (CKP) sensor and bolt.
- Tighten to 10 Nm (89 lb-in).
- Position the engine wiring harness onto the engine.
- Attach the heated oxygen sensor (HO2S) electrical connectors onto the brackets.
- Connect the generator electrical connector and wiring harness retainers.
- Connect the wiring harness retainers to the RH valve cover.
- Connect the CKP sensor electrical connector and wiring harness retainers.
- Attach the wiring harness onto the front cover.
- Connect the wiring harness retainers to the LH valve cover.
- Install the power steering bracket and 5 bolts.
- Tighten to 25 Nm (18 lb-ft).
- Connect the VCT sensor electrical connectors.
- Connect the KS and CMP sensor electrical connectors.
- Attach the pin-type retainers.
- Connect the 8 fuel injector and the 2 radio interference capacitor electrical connectors.
- Install the 2 engine appearance cover brackets and the 4 nuts.
- Tighten to 6 Nm (53 lb-in).
- Attach the vacuum hose retainers onto the LH engine appearance cover support bracket.
- Connect the engine wiring harness retainers to the engine appearance cover support brackets.
- Connect the 8 ignition coil electrical connectors.
- Lift up the wiring harness and apply a 12.7 mm (0.5 in) bead of silicone sealer in the notch of the valve cover.
- Set the ignition coil harness in the bead of silicone sealer and apply enough additional sealer to surround the wire harness and notch.
- Install the ignition coil covers.
- Tighten to 10 Nm (89 lb-in).
- Install the vacuum harness.
- Connect the coolant vent hose to the coolant outlet.
- Connect the EGR system module electrical connector.
- Connect the fuel rail temperature sensor electrical connector.
- Connect the evaporative emissions (EVAP) tube.
- Connect the electronic throttle body electrical connector.
- Connect the fuel pressure sensor electrical connector.
- Connect the throttle position (TP) sensor electrical connector.
- Using the special tool, install the coolant pump pulley and 3 bolts.
- Tighten to 10 Nm (89 lb-in).
- Install the accessory drive belt idler pulley and bolt.
- Tighten to 25 Nm (18 lb-ft).
- Remove the bolt and the accessory drive belt tensioner.
- Tighten to 25 Nm (18 lb-ft).
- Position the new oil cooler, the new gasket and install the bolt.
- Rotate the cooler clockwise until the locating pin hits the stop.
- Tighten the bolt to 60 Nm (44 lb-ft).
- Install a new oil filter and tighten until the seal makes contact.
- Using an oil filter strap wrench, tighten the filter an additional 270 degrees.
- Connect the oil pressure and oil temperature sensor electrical connectors.
- Install the engine block drain plug.
- Tighten to 50 Nm (37 lb-ft).
- Install the special tool.
- Install the special tool.
- Install the engine lifting equipment and remove the engine from the stand.
RH side
NOTE:
The cylinder head bolts are a torque-to-yield design and must not be reused. Always use new bolts.
LH side
Both sides
NOTE:
Coat the valve tappets with clean engine oil prior to installing.
RH side
NOTE:
Apply clean engine oil to the camshaft journals, the camshaft caps and the camshaft lobes prior to installing the camshafts.
CAUTION:
Install the camshaft bearing caps. The camshaft bearing caps are positional and must be installed in their original locations and orientation or engine damage can occur.
LH side
NOTE:
Apply clean engine oil to the camshaft journals, the camshaft caps and the camshaft lobes prior to installing the camshafts.
CAUTION:
Install the camshaft bearing caps. The camshaft bearing caps are positional and must be installed in their original locations and orientation or engine damage can occur.
Both sides
CAUTION:
If any components are installed new, the engine must be reshimmed or engine damage can occur.
NOTE:
There is one window on the ignition pulse wheel that is unique to accept the special tool.
NOTE:
LR shown, RH similar.
CAUTION:
The flats on the camshaft must completely contact the special service tool or damage to the camshafts can occur. Slowly draw the special tool down evenly until it is fully seated on the camshaft flats.
CAUTION:
The exhaust camshaft sprocket bolt must be fully tightened before tightening the intake camshaft sprocket bolt.
CAUTION:
Using the special tool, apply 10 Nm (89 lb-in) counterclockwise to the LH exhaust camshaft sprocket.
CAUTION:
The flats on the camshaft must completely contact the special service tool or damage to the camshafts can occur. Slowly draw the special tool downward evenly until it is fully seated on the camshaft flats.
CAUTION:
The exhaust camshaft sprocket bolt must be fully tightened before tightening the intake camshaft sprocket bolt.
CAUTION:
Using the special tool, apply 10 Nm (89 lb-in) counterclockwise to the RH exhaust camshaft sprocket.
NOTE:
Lubricate the VCT bush carrier seals with clean engine oil.
NOTE:
If the front cover is not secured within 4 minutes of sealant application, the sealant must be removed and the sealing area cleaned with metal surface cleaner. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
NOTE:
Lubricate the front oil seal and the engine front cover mating surface with clean engine oil.
NOTE:
If the crankshaft pulley is not secured within 4 minutes of sealant application, the sealant must be removed and the sealing area cleaned with metal surface cleaner. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
LH side
RH side
Both sides
NOTE:
RH shown, LH similar.
NOTE:
RH shown, LH similar.
NOTE:
If the valve covers are not secured within 4 minutes of sealant application, the sealant must be removed and the sealing area cleaned with metal surface cleaner. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
NOTE:
RH shown, LH similar.
CAUTION:
Failure to lubricate the O-ring seal and the oil level indicator tube-to-engine block mating surface with clean engine oil can result in engine oil leaks.
CAUTION:
Make sure the O-ring seal remains in position and does not roll up the indicator tube during installation.
NOTE:
RH shown, LH similar.
NOTE:
LH shown, RH similar.
NOTE:
RH shown, LH similar.
NOTE:
LH shown, RH similar.
NOTE:
Remove all dirt and moisture from the valve cover before applying silicone sealer.
CAUTION:
A new oil cooler must be installed or severe damage to the engine can occur.
NOTE:
Lubricate the gasket with clean engine oil.
NOTE:
Lubricate the gasket with clean engine oil.