Section 2 (Engine - 4.6): Disassembly: Engine: Material
WARNING: This page is about a different variant/trim than selected.
MATERIAL SPECIFICATION
| Item | Specification |
|---|---|
| Motorcraft Silicone Gasket Remover ZC-30 |
- |
| Motorcraft Metal Surface Prep ZC-31 |
- |
- Remove the engine. Refer to ENGINE .
- Remove the bolts and the flexplate or the flywheel.
- Remove the separator plate.
- Using the special tools, remove the crankshaft rear oil slinger.
- Using the special tools, remove the rear main seal.
- Remove the rear seal retainer plate.
- Mount the engine on a suitable engine stand.
- Remove the RH and LH lifting eyes.
- Remove the breather tube.
- Disconnect the differential pressure feedback exhaust gas recirculation (EGR) electrical connector.
- Disconnect the hoses from the differential pressure feedback EGR transducer.
- Remove the EGR vacuum regulator solenoid.
- Remove the vacuum hoses.
- Remove the electrical connector.
- Remove the bolts.
- Disconnect the EGR tube from the EGR valve.
- Disconnect the positive crankcase ventilation (PCV) hose from the base of the throttle body.
- Remove the PCV valve and hose as an assembly.
- Remove the engine wiring harness.
- Disconnect the vacuum line from the fuel pressure sensor.
- Remove the throttle body bolts.
- Remove the throttle body and adapter as an assembly.
- Inspect and clean the sealing surfaces.
- Remove the ignition coils.
- Remove the radio interference capacitors.
- Rotate the belt tensioner and remove the accessory drive belt.
- Remove the power steering reservoir bracket as an assembly.
- Disconnect the supply line from the pump.
- Remove the three bolts and reservoir and bracket.
- Remove the upper generator support bracket.
- Remove the bolts and the generator.
- Remove the coolant outlet adapter.
- Remove the thermostat and O-ring.
- Remove the bolts in the sequence shown, and remove the intake manifold.
- Remove the intake manifold gaskets.
- Clean the sealing surfaces.
- Remove the coolant bypass tube.
- Remove the nut.
- Remove the coolant bypass tube.
- Remove the RH and the LH engine mount.
- Using a suitable container, drain coolant from the engine block.
- Install the drain plugs when finished.
- Remove the four bolts and the power steering pump.
- Remove the compressor.
- Remove the bolts.
- Remove the compressor.
- Remove the oil filter adapter.
- Remove the oil bypass filter.
- Remove the bolts.
- Remove the oil filter adapter.
- Clean and inspect the sealing surfaces.
- Remove the RH exhaust manifold.
- Remove the exhaust manifold nuts.
- Remove the exhaust manifold.
- Remove the exhaust manifold gasket and discard.
- Disconnect the LH cylinder head exhaust recirculation (EGR) tube at the exhaust manifold.
- Remove the LH exhaust manifold.
- Remove the exhaust manifold nuts.
- Remove the exhaust manifold.
- Remove the exhaust manifold gasket and discard.
- Remove the oil level indicator tube bolt.
- Remove the bolt and the oil level indicator tube.
- Clean and inspect the exhaust manifolds. Refer to ENGINE SYSTEM-GENERAL INFORMATION .
- Remove the RH and LH valve covers.
- Fully loosen the bolts and remove valve covers.
- Clean the valve cover mating surface of the cylinder heads with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
- Inspect the valve cover gasket(s). If the gasket(s) is damaged, remove and discard the gasket(s). Clean the valve cover gasket groove(s) with soap and water or a suitable solvent.
- Remove the spark plugs.
- Install the special tool between the valve spring coils to prevent valve stem seal damage.
- Use the special tool to compress the valve springs and remove the 16 camshaft roller followers. Rotate the camshaft and the crankshaft as necessary.
- Remove the crankshaft pulley bolt.
- Using the special tool, remove the crankshaft pulley.
- Remove the coolant pump pulley.
- Remove the coolant pump pulley bolts.
- Remove the coolant pump pulley.
- Remove the coolant pump bolts.
- Remove the bolts and belt idler pulleys.
- Using the special tool, remove the front cover seal.
- Remove the oil pan.
- Remove the bolts.
- Remove the oil pan.
- Remove the bolts, the studs, and the engine front cover.
- Discard the gaskets. Clean and inspect the sealing surfaces.
CAUTION: Since the engine is not free-wheeling, if the crankshaft or the camshafts are moved in any manner during removal and installation, the crankshaft and the camshafts must be re-synchronized.
- Discard the gaskets. Clean and inspect the sealing surfaces.
- Remove the crankshaft sensor ring from the crankshaft.
- Position the crankshaft with the keyway at the 12 o'clock position.
- Remove the RH and LH timing chain tensioning system from both timing chains.
- Remove the bolts.
- Remove the timing chain tensioners.
- Remove the timing chain tensioner arms.
- Remove the LH and RH timing chains and the crankshaft sprocket.
- Remove the RH timing chain from the camshaft sprocket.
- Remove the RH timing chain from the crankshaft sprocket.
- Remove the LH timing chain from the camshaft sprocket.
- Remove the LH timing chain from the crankshaft sprocket.
- Remove the bolts and the timing chain guides.
- Install the lifting handles to the RH and LH cylinder heads.
- Remove the hydraulic lash adjusters.
- Remove the bolts and the RH cylinder head.
- Discard the cylinder head gasket.
- Discard the cylinder head bolts.
- Remove the bolts and the LH cylinder head.
- Discard the cylinder head gasket.
- Discard the cylinder head bolts.
- Clean the cylinder head-to-cylinder block mating surfaces of both the cylinder head and the cylinder block.
- Remove any large deposits of silicone or gasket material with a plastic scraper.
- Apply silicone gasket remover, following package direction, and allow to set for several minutes.
- 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.
- 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. Inspect all areas of the deck face with a straightedge, paying particular attention to the oil pressure feed area. They cylinder head must not have depressions deeper than 0.0254 mm (0.001 in) across a 38.1 mm (1.5 in) square area, or scratches more than 0.0254 mm (0.001 in).
- Remove the oil pump screen cover and tube, and the spacer.
- Remove the oil pump.
- Before removing the pistons, inspect the top of the cylinder bores. If necessary, remove the ridge or carbon deposits from each cylinder using a cylinder ridge reamer, following the manufacturer's instructions.
- Remove the connecting rod caps for piston numbers 1 and 6.
- Discard the bolts.
- Remove the piston removing pistons number 1 and 6 through the top of the cylinder block.
- Repeat the previous two steps to remove the remaining pistons, rotating the crankshaft 90 dEGRees between piston pairs 3 and 5, 4 and 7, 2 and 8.
- Remove the piston rings.
- Clean and inspect pistons. Refer to ENGINE SYSTEM-GENERAL INFORMATION .
- Remove the crankshaft bearing cap fasteners.
- Remove and discard the cross-mounted main cap bolts.
- Loosen the jackscrews.
- Remove and discard the main cap bolts.
- Remove the main bearing cap and the crankshaft main bearings from the cylinder block.
- Remove the crankshaft, crankshaft main bearings and the thrust washer.
CAUTION:
Servicing the bottom end of the engine (crankshaft, bearings) requires that cylinder heads be removed. Failure to do so can result in engine damage.
NOTE:
RH shown, LH similar.
NOTE:
The gasket is reusable if not damaged.
CAUTION:
Do not use metal scrapers, wire brushes, power abrasive discs or other means to clean sealing surfaces. These tools cause scratches and gouges which make leak paths.
NOTE:
RH shown, LH similar.
NOTE:
LH shown, RH similar.
CAUTION:
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 which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.
NOTE:
The bolts are part of the valve cover and should not be removed. RH valve cover shown, LH valve cover similar.
NOTE:
Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.
NOTE:
One spark plug is shown; others are similar.
NOTE:
Rotate the camshaft to see the base circle of the camshaft lobe before removing the followers. Keep roller followers in order when removing.
NOTE:
The gasket can be reused if not damaged.
CAUTION:
Unless otherwise instructed, at no time when the timing chains are removed and the cylinder heads are installed is the crankshaft or the camshaft to be rotated. Severe piston and valve damage can occur.
CAUTION:
Do not remove the special tool from the camshafts.
NOTE:
The LH is shown and the RH is similar.
NOTE:
LH shown, RH similar.
NOTE:
The hydraulic lash adjusters must be reinstalled in their original locations. Record the hydraulic lash adjuster locations.
CAUTION:
The cylinder head must be cool before removing it from the engine. Cylinder head warpage can result if a warm or hot cylinder head is removed.
CAUTION:
Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine.
CAUTION:
The cylinder head bolts must be discarded and new bolts installed. They are tighten-to-yield designed and cannot be reused.
CAUTION:
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.
CAUTION:
Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.
CAUTION:
The cylinder head must be cool before removing it from the engine. Cylinder head warpage can result if a warm or hot cylinder head is removed.
CAUTION:
Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine.
CAUTION:
The cylinder head bolts must be discarded and new bolts installed. They are tighten-to-yield designed and cannot be reused.
CAUTION:
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.
CAUTION:
Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.
CAUTION:
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.
CAUTION:
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.
NOTE:
The straightedge used must be flat within 0.0051 mm (0.0002 in) per foot of tool length.
CAUTION:
Do not stamp the top of pistons, as ring land damage can occur.
NOTE:
Connecting rods and rod caps should be numbered to retain correct orientation.
CAUTION:
Do not scratch cylinder walls or crankshaft journals with the connecting rod.
NOTE:
Before removing pistons, inspect the top of the cylinder bores. If necessary, remove the ridge or carbon deposits from each cylinder using a cylinder ridge reamer following the manufacturer's instructions.