Section 552 (Engine - 4.6L): Assembly: Engine
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
MATERIAL SPECIFICATION CHART
| Item | Specification |
|---|---|
| SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP or equivalent | WSS-M2C153-H |
| Metal Surface Cleaner F4AZ-19A536-RA or equivalent | WSE-M5B392-A |
| Silicone Gasket and Sealant F7AZ-19554-EA or equivalent | WSE-M4G323-A4 |
| Premium Engine Coolant VC-7-A (in Oregon VC-7-B) or equivalent | WSS-M97B41-A1 |
| Silicone Brake Caliper Grease and Dielectric Compound D7AZ-19A331-A (Motorcraft XG-3) or equivalent | WSS-M97B51-A1 |
| Instant Adhesive E8AZ-19554-A or equivalent | WSK-M2G402-A4 |
NOTE:
During engine assembly it may become necessary to check bearing clearances, end play, etc. For additional information, refer to ENGINE SYSTEM-GENERAL INFORMATION
.
NOTE:
For additional information, refer to the exploded views under DESCRIPTION AND OPERATION .
- Read the first character code information on the cylinder block face (1) and record the information.
- Read the first character on the No. 7 crankshaft counterweight and note it.
- Using the data recorded earlier and the Bearing Select Fit Chart, Standard Bearings chart determine the required bearing grade for each main bearing.
- Read the first letter of the engine block main bearing code and the first letter of the crankshaft main bearing code.
- Read down the column below the engine block main bearing code letter, and across the row next to the crankshaft main bearing code letter, until the two intersect. This is the required bearing grade fro the number one crankshaft main bearing.
- As an example, if the engine block code letter is "F" and the crankshaft code letter is "D," the correct bearing grade for this main bearing is a "2."
- Repeat this process for the remaining four main bearings.
- If oversize bearings are being used, use the procedure in the previous step and the Bearing Select Fit Chart, Oversize Bearings chart to determine the required bearing grade for each main bearing.
- Lubricate with clean engine oil and install the crankshaft upper main bearings into the cylinder block.
- Install the crankshaft onto the upper thrust bearing and main bearings.
- Install the rear main bearing cap.
- Install the crankshaft lower main bearings, thrust bearing and thrust washer into the main bearing caps. Locate the main bearing cap on the cylinder block and tap into place using a plastic or dead-blow hammer.
- Push the crankshaft forward to seat the crankshaft thrust washer and hold the crankshaft in the forward position.
- Tighten the bolts 1 through 20 in the sequence shown.
- Tighten the bolts 1 through 10 in the sequence shown.
- Tighten the bolts 11 through 20 in the sequence shown.
- Tighten the bolts in the sequence shown.
- Install and tighten the cross-mounted bolts in two stages.
- Stage 1: Tighten to 40 Nm (30 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
- Check the piston to cylinder block and piston ring clearances. For additional information, refer to ENGINE SYSTEM-GENERAL INFORMATION .
- Install the piston rings.
- Position the piston rings as illustrated.
- Use the special tools to install the connecting rod with upper connecting rod bearing (6211) in place.
- Lubricate the piston and ring with clean engine oil.
- Lubricate the rod bearings with clean engine oil.
- Once the connecting rod is seated on the crankshaft journal, remove the special tool.
- Position the lower bearing and connecting rod cap, and install the new bolts loosely.
- Tighten the bolts in three stages, using the sequence shown.
- Stage 1: Tighten to 23 Nm (17 lb-ft).
- Stage 2: Tighten to 43 Nm (32 lb-ft).
- Stage 3: Tighten an additional 90-120 degrees.
- Position the oil pump and install the bolts loosely. Tighten the bolts in the sequence shown.
- Install the head gaskets over the dowel pins.
- Tighten the LH cylinder head bolts in six stages in the sequence shown.
- Tighten the bolts to 40 Nm (30 lb-ft).
- Tighten the bolts an additional 90 degrees (1/4 turn).
- Back out all the bolts one full turn (360 degrees).
- Tighten the bolts to 40 Nm (30 lb-ft).
- Tighten the bolts an additional 90 degrees (1/4 turn).
- Tighten the bolts an additional 90 degrees (1/4 turn).
- Tighten the RH cylinder head bolts in six stages in the sequence shown.
- Tighten the bolts to 40 Nm (30 lb-ft).
- Tighten the bolts an additional 90 degrees (1/4 turn).
- Back out all the bolts one full turn (360 degrees).
- Tighten the bolts to 40 Nm (30 lb-ft).
- Tighten the bolts an additional 90 degrees (1/4 turn).
- Tighten the bolts an additional 90 degrees (1/4 turn).
- Install the oil level indicator tube.
- Install a new O-ring seal on the oil level indicator tube.
- Install the oil level indicator tube.
- Install the bolt.
- Install the RH exhaust manifold gaskets and the exhaust manifold. Tighten the nuts in the shown.
- Install the RH exhaust manifold heat shield and the bolts.
- Install the LH exhaust manifold and the exhaust manifold gaskets. Tighten the nuts in the sequence shown.
- Install the LH exhaust manifold heat shield and the bolts.
- Compress the tensioner plunger, using an edge of a vise.
- Using a small screwdriver or pick, push back and hold the ratchet mechanism.
- While holding the ratchet mechanism, push the ratchet arm back into the tensioner housing.
- Install a paper clip into the hole in the tensioner housing to hold the ratchet assembly and plunger in during installation.
- Remove the tensioner from the vise.
- If the copper links are not visible, mark one link on one end and one link on the other end, and use as timing marks.
- Position the crankshaft with the special tool.
- Install the crankshaft sprocket, make sure the timing mark faces forward.
- Install the timing chain guides.
- Position the LH timing chain guide.
- Install and tighten the bolts.
- Position the RH timing chain guide.
- Install and tighten the bolts.
- Rotate the RH camshaft sprocket until the timing mark is approximately at the 11 o'clock position. Rotate the LH camshaft sprocket until the timing mark is approximately at the 12 o'clock position.
- Install the timing chains.
- Install the LH (inner) timing chain on the crankshaft sprocket, aligning the copper link with the dot on the crankshaft sprocket.
- Install the LH (inner) timing chain on the camshaft sprocket, aligning the copper link with the dot on the camshaft sprocket.
- Install the RH (outer) timing chain on the crankshaft sprocket, aligning the copper link with the dot on the crankshaft sprocket.
- Install the RH (outer) timing chain on the camshaft sprocket, aligning the copper link with the dot on the camshaft sprocket.
- Position the LH and RH timing chain tensioner arm on the dowel pins.
- Position the RH timing chain tensioner and install the bolts.
- Position the LH timing chain tensioner and install the bolts.
- Remove both the RH and LH retaining pins from the timing chain tensioners.
- As a post-check, make sure the copper (marked) links on the timing chains line up with the timing marks on the crankshaft and camshaft sprockets.
- Position the crankshaft sensor ring on the crankshaft.
- Apply a bead of silicone gasket and sealant along the head-to-block surface as specified.
- Install new engine front cover gaskets on the engine front cover. Position the engine front cover. Install the fasteners finger-tight.
- Tighten the front cover bolts and stud bolts in the sequence shown.
- Lubricate the front cover and the front oil seal inner lip with clean engine oil.
- Using the special tool, install the front oil seal into the engine front cover.
- Apply silicone gasket and sealant to the Woodruff key slot on the crankshaft pulley.
- Using the special tool, install the crankshaft pulley.
- Install the bolt and washer. Tighten the bolt in four stages.
- Stage 1: Tighten to 90 Nm (66 lb-ft).
- Stage 2: Loosen 360 degrees.
- Stage 3: Tighten to 50 Nm (37 lb-ft).
- Stage 4: Tighten an additional 90 degrees.
- Rotate the camshaft until the lobe is in the upward position.
- Install the special tool between the valve spring coils to prevent valve stem seal damage.
- Use the special tool to compress the valve spring and install the camshaft roller followers.
- Install the spark plugs.
- Inspect the LH valve cover gasket. If the gasket is damaged, remove and discard the gasket. Clean the valve cover gasket groove with soap and water or a suitable solvent.
- If a new gasket is being installed, apply instant adhesive completely around the gasket groove in the valve cover.
- Apply silicone gasket and sealant to the left valve cover gasket surface, in two places, where the engine front cover meets the cylinder head.
- Install the left valve cover and tighten the bolts in the sequence shown.
- Inspect the RH valve cover gasket. If the gasket is damaged, remove and discard the gasket. Clean the valve cover gasket groove with soap and water or a suitable solvent.
- If a new gasket is being installed, apply instant adhesive completely around the gasket groove in the valve cover.
- Apply silicone gasket and sealant to the right valve cover gasket surface, in two places, where the engine front cover meets the cylinder head.
- Install the right valve cover and tighten the bolts in the sequence shown.
- Install the oil pump screen cover and tube spacer.
- Position the oil pump screen cover and tube and install the bolts.
- Apply a 4 mm (0.16 in) bead of silicone gasket and sealant around the rear oil seal retainer sealing surface.
- Install the rear oil seal retainer and loosely install the six bolts.
- Tighten the bolts in the sequence shown.
- Apply silicone gasket and sealant in two places.
- Apply silicone gasket and sealant in two places.
- Position the new oil pan gasket and the oil pan and loosely install the bolts.
- Tighten the bolts in three stages, in the sequence shown.
- Stage 1: Tighten to 2 Nm (18 lb-in).
- Stage 2: Tighten to 20 Nm (15 lb-ft).
- Stage 3: Tighten an additional 60 degrees.
- Install the RH engine support insulator bracket and the bolts.
- Install the LH engine support insulator bracket and the bolts.
- Install the coolant tube and the nut.
- Inspect and install new O-ring seals as necessary.
- Lubricate the O-ring seals with clean engine coolant.
- Install the knock sensor (KS) and the bolts.
- Connect the heater coolant hose.
- Install the ground wire and bolt.
- Install new intake manifold gaskets.
- Install the intake manifold and tighten the bolts in the sequence shown.
- Install the thermostat housing and the bolts.
- Install all eight ignition coils and the bolts.
- Position the fuel charging wiring harness on the top of the engine.
- Connect the harness locators to the engine.
- Position the starter wiring harness and connect the wiring harness retainers.
- Connect the ground wire.
- Install the bolt.
- Connect the fuel charging wiring harness retainers and the electrical connectors.
- Connect the fuel charging wiring harness retainers and the electrical connectors.
- Install the throttle body adapter and bolts.
- Connect the coolant hose.
- Connect the coolant hoses.
- Connect the KS electrical connector and the wiring harness pin-type retainer.
- Connect the cylinder head temperature (CHT) sensor electrical connector.
- Connect the EGR system module and fuel pressure sensor electrical connectors.
- Position the vacuum harness on the engine and connect the EGR system module and fuel pressure sensor vacuum fittings.
- Install the positive crankcase ventilation (PCV) tube and connect the vacuum tube to the throttle body adapter.
- Connect the throttle position (TP) sensor and the electronic throttle body electrical connectors.
- Install the brake booster vacuum hose and bolt.
- Install the EGR tube to the exhaust manifold and to the EGR system module.
- Install the water pump.
- Lubricate the new O-ring seal using engine coolant and install the O-ring seal onto the coolant pump.
- Position the coolant pump into the engine block.
- Install the bolts.
- Position the coolant pump pulley on the coolant pump and install the bolts.
- Install the crankshaft position (CKP) sensor and the bolts.
- Install the drive belt tensioner and the bolts.
- Install the camshaft position (CMP) sensor and connect the electrical connector.
- Install the generator and the bolts.
- Install the upper generator bracket and the bolts.
- Connect the electrical connectors and attach the wiring harness retainer.
- Install the idler pulleys and the bolts.
- Install the upper radiator hose bracket and the radio interference capacitor.
- Install the A/C compressor and the nuts.
- Attach the wiring harness retainer to the A/C tube.
- Position the electrical harness and connect the retainers.
- Install the crankcase air inlet tube.
- Connect the A/C compressor and CKP sensor electrical connectors.
- Install the power steering reservoir bracket, radio interference capacitor, ground cable and nut.
- Using the special tool, install a new seal on the power steering pressure (PSP) hose fitting.
- Install the power steering pump and the bolts.
- Connect the return and pressure hoses to the power steering pump.
- Install the power steering hose support bracket and the nuts.
- Position the oil filter adapter, install the bolts and connect the oil pressure electrical connector.
- Install the oil filter.
- Install the wiring harness bracket and nuts.
- Install the drive belt.
- Install the engine lift brackets.
- Attach the special tool to a floor crane and the engine, and remove the engine from the engine stand.
- Using the special tools, install the crankshaft rear seal.
- Using the special tools, install the crankshaft rear oil slinger.
- Install the spacer plate.
- Position the flexplate and install the bolts in two stages:
- Stage 1: Loosely install the bolts.
- Stage 2: Tighten the bolts in sequence shown.
NOTE:
Before assembling the cylinder block, all sealing surfaces must be free of chips, dirt, paint and foreign material. Also, make sure the coolant and oil passages are clear.
NOTE:
To aid in assembly, apply petroleum jelly to the back of the crankshaft thrust washer.
NOTE:
The oil groove on the thrust washer must face toward the rear of the engine (crankshaft surface).
NOTE:
Make sure to tighten the bolts in four stages.
CAUTION:
Do not scratch the cylinder walls or crankshaft journals with the connecting Rod.
NOTE:
The following piston installation steps are for all eight connecting rods, rod caps and pistons. Only one connecting rod, rod cap and piston is shown.
CAUTION:
Do not scratch the cylinder walls or crankshaft journals with the connecting rod.
CAUTION:
The rod cap installation must keep the same orientation as marked during disassembly.
NOTE:
The connecting rod caps are of the "cracked" design and must mate with the connecting rod ends. Excessive bearing clearance will result if not mated correctly.
NOTE:
Main caps are not shown for clarity.
CAUTION:
Make sure all coolant residue and foreign material is cleaned from the block surface and the cylinder bore.
CAUTION:
The gasket sealing surfaces on the cylinder head and the cylinder block must be clean. For additional information, refer to CYLINDER HEADS .
CAUTION:
The use of the 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.
NOTE:
RH shown, LH similar.
CAUTION:
Cylinder head machining or milling is not authorized by the 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:
The gasket sealing surfaces on the cylinder head and the cylinder block must be clean. For additional information, refer to CYLINDER HEADS .
CAUTION:
The use of sealing aids (aviation cement, copper spray and glue) is not permitted. The gasket must be installed dry.
CAUTION:
Do not allow the dowels to scratch the sealing surface of the cylinder head during cylinder head installation.
NOTE:
The new cylinder head bolts must be lightly oiled with a rag, and allowed to drain for a few minutes prior to installation.
CAUTION:
Cylinder head machining or milling is not authorized by the 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:
The gasket sealing surfaces on the cylinder head and the cylinder block must be clean. For additional information, refer to CYLINDER HEADS .
CAUTION:
The use of sealing aids (aviation cement, copper spray and glue) is not permitted. The gasket must be installed dry.
CAUTION:
Do not allow the dowels to scratch the sealing surface of the cylinder head during cylinder head installation.
NOTE:
The new cylinder head bolts must be lightly oiled with a rag, and allowed to drain for a few minutes prior to installation.
NOTE:
Lubricate O-ring seal with clean engine oil.
CAUTION:
Timing chain procedures must be followed exactly or damage to valves and pistons will result.
CAUTION:
Do not compress the ratchet assembly. This will damage the ratchet assembly.
NOTE:
The LH timing chain tensioner arm has a bump near the dowel hole, for identification.
NOTE:
If the bolt is not secured within four minutes, the sealant must be removed and the sealing area cleaned with metal surface cleaner. Failure to follow this procedure can cause future oil leakage.
NOTE:
If not secured within four minutes, sealant must be removed and the sealing area cleaned with metal surface cleaner. Failure to follow this procedure can cause future oil leakage.
NOTE:
Use special tool 303-D055 to hold the crankshaft pulley.
NOTE:
If not secured within four minutes, sealant must be removed and the sealing area cleaned with metal surface cleaner. Failure to follow this procedure can cause future oil leakage.
NOTE:
If not secured within four minutes, sealant must be removed and the sealing area cleaned with metal surface cleaner. Failure to follow this procedure can cause future oil leakage.
NOTE:
Oil scraper not shown for clarity.
NOTE:
If the rear crankshaft seal retaining plate is not secured within four minutes, 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 four minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
NOTE:
The silicone must be applied on the groove along the retainer plate.
NOTE:
If the oil pan is not secured within four minutes, the sealant must be removed and the sealing areas cleaned with metal surface cleaner. Failure to follow this procedure can cause future oil leakage.
NOTE:
If the oil pan is not secured within four minutes, the sealant must be removed and the sealing areas cleaned with metal surface cleaner. Failure to follow this procedure can cause future oil leakage.
NOTE:
Lubricate the O-ring seal with clean engine coolant.
NOTE:
Apply dielectric compound to the inside of the coil boots.
CAUTION:
Do not rotate the coolant pump housing once the coolant pump has been positioned in the cylinder block. Damage to the O-ring seal will occur.
NOTE:
Clean and inspect the mating surfaces, and install new gaskets.
NOTE:
RH is shown, LH is similar.