Section 1080 (Engine): Disassembly: Engine
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
| Illustration | Tool Name | Tool Number |
|---|---|---|
| 3-Jaw Puller | 303-D121 | |
| Camshaft Alignment Tool | 303-1248 | |
| Handle | 205-153 (T80T-4000-W) | |
| Remover, Crankshaft Rear Oil Seal | 303-519 (T95P-6701-EH) | |
| Remover, Oil Seal | 303-409 (T92C-6700CH) | |
| Remover, Seal | 303-1247/1 | |
| Slide Hammer | 307-005 (T59L-100-B) | |
| Strap Wrench | 303-D055 (D85L-6000-A) |
Material
| Item | Specification |
|---|---|
| Motorcraft Metal Surface Prep ZC-31 |
- |
| Silicone Gasket Remover ZC-30 |
- |
CAUTION:
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.
NOTE:
For additional information, refer to Lower End Components - Exploded View, Crankshaft Pulley and Crankshaft Front Seal .
All vehicles
- Remove the 8 bolts and the flexplate.
- Remove the crankshaft sensor ring.
- Using the special tools, remove and discard the rear crankshaft seal.
- Mount the engine on a suitable engine stand.
- If equipped, remove the heat shield and disconnect the block heater electrical connector.
- Detach all of the engine block heater harness retainers and remove the harness.
- Disconnect the positive crankcase ventilation (PCV) fitting electrical connector.
- Disconnect the PCV hose from the PCV valve.
- Disconnect the throttle body electrical connector.
- Detach the wiring harness retainers from the upper intake manifold.
- Remove the upper intake manifold support bracket bolt.
- Remove the upper intake manifold support bracket bolt.
- Remove the 6 bolts and the upper intake manifold.
- Discard the gaskets.
- Disconnect the power steering pressure (PSP) switch electrical connector.
- Disconnect the RH catalyst monitor sensor electrical connector.
- Disconnect the RH heated oxygen sensor (HO2S) electrical connector.
- Disconnect the RH variable camshaft timing (VCT) solenoid electrical connector.
- Disconnect the 3 RH coil-on-plug electrical connectors.
- Disconnect the heated PCV valve electrical connector.
- Detach all of the wiring harness retainers from the RH valve cover and stud bolts.
- Remove the bolt and position aside the RH radio interference capacitor.
- Disconnect the RH camshaft position (CMP) sensor electrical connector.
- Disconnect the knock sensor (KS) electrical connector.
- Remove the bolt and the ground cable from the RH cylinder.
- Disconnect the 6 fuel injector electrical connectors (3 shown).
- Disconnect the cylinder head temperature (CHT) sensor electrical connector.
- Remove the bolt and position aside the LH radio interference capacitor.
- Disconnect the LH CMP sensor electrical connector.
- Disconnect the LH catalyst monitor sensor electrical connector.
- Disconnect the LH HO2S electrical connector.
- Disconnect the 3 LH coil-on-plug electrical connectors.
- Disconnect the LH VCT solenoid electrical connector.
- Detach all of the wiring harness retainers from the LH valve cover and stud bolts.
- Remove the wiring harness retainer bolt from the rear of the LH cylinder head.
- Remove the nut, the bolt and the heat shield.
- Remove the wiring harness retainer stud bolt.
- Remove the wiring harness grommet.
- Disconnect the crankshaft position (CKP) sensor electrical connector.
- Disconnect the A/C compressor electrical connector.
- Remove the nut and disconnect the generator B+ cable.
- Disconnect the generator electrical connector.
- Detach the wiring harness retainer from the generator.
- Disconnect the engine oil pressure (EOP) switch electrical connector and the wiring harness pin-type retainer.
- Remove the wiring harness from the engine.
- Remove the nut, 2 bolts and the A/C compressor.
- Remove the A/C compressor mounting stud from the oil pan.
- Remove the nut, bolt and the generator.
- Remove the 3 bolts and the power steering pump.
- Remove the 3 bolts and the accessory drive belt tensioner.
- Remove the 4 nuts (3 shown) and the LH catalytic converter.
- Discard the nuts and the gasket.
- Remove the 3 bolts and the LH exhaust manifold heat shield.
- Remove the 6 nuts and the LH exhaust manifold.
- Discard the nuts and exhaust manifold gaskets.
- 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.
- Remove the 4 nuts and the RH catalytic converter.
- Discard the nuts and the gasket.
- Remove the 3 bolts and the RH exhaust manifold heat shield.
- Remove the 6 nuts and the RH exhaust manifold.
- Discard the nuts and exhaust manifold gaskets.
- Clean and inspect the RH exhaust manifold. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION .
- Remove and discard the 6 RH exhaust manifold studs.
- Remove the RH cylinder block drain plug or, if equipped, the block heater.
- Allow coolant to drain from the cylinder block.
- Remove the LH cylinder block drain plug.
- Allow coolant to drain from the cylinder block.
- Remove the pin-type retainer and the cover.
- Remove the 2 bolts and the engine lifting eye.
- Remove the bolt and the upper intake manifold bracket.
- Remove the bolt and the upper intake manifold bracket.
- Remove the bolt and the RH CMP sensor.
- Remove the 2 bolts and the catalytic converter bracket.
- Remove the 4 bolts and the fuel rail and injectors as an assembly.
- Remove the 3 thermostat housing-to-lower intake manifold bolts.
- Remove the thermostat housing and discard the gasket.
- Remove the 10 bolts and the lower intake manifold.
- Discard the gaskets.
- Disconnect and remove the CHT sensor jumper harness.
- Remove the bolt and the LH CMP sensor.
- Remove the bolt and the CKP sensor.
- Remove the EOP switch.
- If equipped, remove the 6 bolts and the oil cooler.
- Discard the oil cooler and the gaskets.
- Remove the 2 bolts and the oil filter adapter.
- Discard the gasket and O-ring seal (on banjo bolt).
- Remove the 6 bolts and the 6 coil-on-plugs.
- Remove the 11 stud bolts and the LH valve cover.
- Discard the gasket.
- Remove the bolt, the 10 stud bolts and the RH valve cover.
- Discard the gasket.
- Inspect the VCT solenoid seals and the spark plug tube seals. Remove any damaged seals.
- Using the special tools, remove the seal(s).
- Remove the crankshaft bolt and washer.
- Discard the bolt.
- Using the special tool, remove the crankshaft pulley.
- Using the special tool, remove and discard the crankshaft front seal.
- Remove the 2 bolts and the engine mount bracket.
- Remove the 2 engine mount studs.
- Remove the 3 bolts and the engine mount bracket.
- Remove the 22 engine front cover bolts.
- Install 6 of the engine front cover bolts (finger tight) into the 6 threaded holes in the engine front cover.
- Tighten the bolts one turn at a time in a criss-cross pattern until the engine front cover-to-cylinder block seal is released.
- Remove the engine front cover.
- Rotate the crankshaft clockwise and align the timing marks on the VCT assemblies as shown.
- Install the special tool onto the flats of the LH camshafts.
- Install the special tool onto the flats of the RH camshafts.
- Remove the 3 bolts and the RH VCT housing.
- Remove the 3 bolts and the LH VCT housing.
- Remove and discard the VCT housing seals.
- Remove the 2 bolts and the primary timing chain tensioner.
- Remove the primary timing chain tensioner arm.
- Remove the 2 bolts and the lower LH primary timing chain guide.
- Remove the primary timing chain.
- Remove the crankshaft timing chain sprocket.
- Remove the 2 bolts and the upper LH primary timing chain guide.
- Compress the LH secondary timing chain tensioner and install a suitable lock pin to retain the tensioner in the collapsed position.
- Remove and discard the LH VCT assembly bolt and the LH exhaust camshaft sprocket bolt.
- Remove the LH VCT assembly, secondary timing chain and the LH exhaust camshaft sprocket as an assembly.
- Remove the special tool from the LH camshafts.
- Verify the LH camshafts are in the neutral position.
- Remove the 2 bolts and the LH secondary timing chain tensioner.
- Remove the bolts and the LH camshaft bearing caps.
- Remove the LH camshafts.
- Compress the RH secondary timing chain tensioner and install a suitable lock pin to retain the tensioner in the collapsed position.
- Remove and discard the RH VCT assembly bolt and the RH exhaust camshaft sprocket bolt.
- Remove the RH VCT assembly, secondary timing chain and the RH exhaust camshaft sprocket as an assembly.
- Remove the special tool from the RH camshafts.
- Rotate the RH camshafts counterclockwise to the neutral position.
- Remove the 2 bolts and the RH secondary timing chain tensioner.
- Remove the 2 bolts and the RH primary timing chain guide.
- Remove the bolts and the RH camshaft bearing caps.
- Remove the RH camshafts.
- Remove the valve tappets from the cylinder heads.
- Remove and discard the M6 bolt from each cylinder head.
- Remove and discard the 8 bolts from each cylinder head.
- Remove the cylinder heads.
- Discard the cylinder head gaskets.
- Clean the cylinder head-to-cylinder block mating surfaces of both the cylinder heads and the cylinder block.
- Remove any large deposits of silicone or gasket material with a plastic scraper.
- Apply silicone gasket remover, following package directions, 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 heads on a bench with the head gasket side up.
- Inspect all areas of the deck face with a straightedge and feeler gauge. The cylinder heads 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 coolant tube.
- Remove and discard the O-ring seals.
- Remove the 2 bolts and the KS.
- Remove the 8 bolts and the coolant pump.
- Remove the 16 oil pan bolts.
- Install 2 of the oil pan bolts (finger tight) into the 2 threaded holes in the oil pan.
- Alternately tighten the 2 bolts one turn at a time until the oil pan-to-cylinder block seal is released.
- Remove the oil pan.
- Remove the 3 bolts and the oil pump screen and pickup tube.
- Discard the O-ring seal.
- Remove the 3 bolts and the oil pump.
- Remove the 8 crankshaft rear seal retainer bolts.
- Install the 2 M6 oil pan bolts (finger tight) into the 2 threaded holes in the crankshaft rear seal retainer.
- Alternately tighten the 2 bolts one turn at a time until the crankshaft rear seal retainer-to-cylinder block seal is released.
- Remove the crankshaft rear seal retainer.
- Clean the engine front cover, oil pan and crankshaft rear seal retainer plate using a 3M Roloc® Bristle Disk, (2 inch, white, part number 07528) in a suitable tool turning at the recommended speed of 15,000 rpm.
- Thoroughly wash the engine front cover, oil pan and crankshaft rear seal retainer plate to remove any foreign material, including any abrasive particles created during the cleaning process.
- Clean the sealing surfaces of the cylinder block.
- Remove any large deposits of silicone or gasket material with a plastic scraper.
- Apply silicone gasket remover, following package directions, 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. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.
- Make sure the 2 engine front cover locating dowel pins are seated correctly in the cylinder block.
CAUTION:
Install the engine stand bolts into the cylinder block only. Do not install the bolts into the oil pan.
Front wheel drive (FWD) vehicles
All vehicles
Fig 39: Locating Engine Oil Pressure (EOP) Switch Electrical Connector & Wiring Harness Pin-Type Retainer
FWD vehicles
All vehicles
All wheel drive (AWD) vehicles
All vehicles
CAUTION:
A new oil cooler must be installed or severe damage to the engine can occur.
NOTE:
Engine without oil cooler shown, engine with oil cooler similar.
NOTE:
LH shown, RH similar.
NOTE:
VCT solenoid seal removal shown, spark plug tube seal similar.
NOTE:
The special tool will hold the camshafts in the top dead center position.
NOTE:
The special tool will hold the camshafts in the top dead center position.
Fig 94: Compressing LH Secondary Timing Chain Tensioner & Installing Suitable Lock Pin To Retain Tensioner In Collapsed Position
NOTE:
The VCT bolt and the exhaust camshaft bolt must be discarded and new ones installed. However, the exhaust camshaft washer is reusable.
NOTE:
When the special tool is removed, valve spring pressure will rotate the LH camshafts approximately 3 degrees to a neutral position.
CAUTION:
The camshafts must remain in the neutral position during removal.
CAUTION:
Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
Fig 100: Compressing RH Secondary Timing Chain Tensioner & Installing Suitable Lock Pin To Retain Tensioner In Collapsed Position
NOTE:
The VCT bolt and the exhaust camshaft bolt must be discarded and new ones installed. However, the exhaust camshaft washer is reusable.
CAUTION:
The camshafts must remain in the neutral position during removal.
CAUTION:
Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
CAUTION:
If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.
NOTE:
LH shown, RH similar.
NOTE:
LH shown, RH similar.
CAUTION:
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, can cause engine failure.
CAUTION:
The cylinder head bolts must be discarded and new bolts must be installed. They are tighten-to-yield designed and cannot be reused.
CAUTION:
Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.
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 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:
Only use a 3M Roloc® Bristle Disk, (2 inch, white, part number 07528) to clean the engine front cover, oil pan and crankshaft rear seal retainer plate. Do not use metal scrapers, wire brushes or any other power abrasive disk to clean the engine front cover, oil pan and crankshaft rear seal retainer plate. These tools cause scratches and gouges that make leak paths.
CAUTION:
Place clean, lint free 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, can cause engine failure.
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 sealant.
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.