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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 855 (Engine - 4.6L (2V) - F-150) >> Installation >> Cylinder Head >> All cylinder heads

All cylinder heads

WARNING: This page is about a different car, the 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Make sure all coolant residue and foreign material are cleaned from the block surface and cylinder bore.
    CAUTION: The use of sealing aids (aviation cement, copper spray and glue) is not permitted. The gasket must be installed dry.
    CAUTION: The cylinder head bolts must be discarded and new bolts installed. They are tighten-to-yield designed and cannot be reused.
    NOTE: Do not turn the crankshaft until instructed to do so.
  1. Using the special tools, position the cylinder head gaskets and cylinder heads over the dowels and install the cylinder head bolts loosely.
    • LH shown, RH similar.
    2. Fig 1: Locating Cylinder Head And Gaskets Using Special Tool
    G03920395Courtesy of FORD MOTOR CO.


    CAUTION: Timing chain procedures must be followed exactly or damage to valves and pistons will result.
    CAUTION: Prior to installation, inspect the tensioner-sealing bead for seal integrity. If cracks, tears, separation from the tensioner body or permanent compression of the seal bead is observed, install a new tensioner.
  1. Compress the tensioner plunger, using a vise.
    2. Fig 1: Compressing Tensioner Plunger
    G03885344Courtesy of FORD MOTOR CO.
  2. Install a retaining clip on the tensioner to hold the plunger in during installation.
    3. Fig 2: Identifying Retaining Clip On Tensioner
    G03881580Courtesy of FORD MOTOR CO.
  3. Remove the tensioner from the vise.
  4. 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.
    5. Fig 3: Identifying Timing Chain Copper Links
    G03881581Courtesy of FORD MOTOR CO.
  5. Install the crankshaft sprocket, making sure the flange faces forward.
    6. Fig 4: Identifying Crankshaft Sprocket
    G03919967Courtesy of FORD MOTOR CO.
  6. Install the timing chain guides.
    • Position the LH timing chain guide.
    • Install and tighten the LH bolts.
    • Position the RH timing chain guide.
    • Install and tighten the RH bolts.
    • Tighten to 10 Nm (89 lb-in).
    7. Fig 5: Identifying Timing Chain Guides
    G03962457Courtesy of FORD MOTOR CO.
  7. 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.
    8. Fig 6: Identifying LH And RH Camshaft Timing Mark Position
    G04583473Courtesy of FORD MOTOR CO.
    NOTE: The No. 1 cylinder is at top dead center (TDC) when the stud on the engine block fits into the slot in the handle of the special tool.
  8. Position the crankshaft so the No. 1 cylinder is at TDC with the special tool.
    9. Fig 7: Positioning Crankshaft so No. 1 Cylinder Is At TDC With Special Tool
    GF0002621Courtesy of FORD MOTOR CO.
  9. Remove the Crankshaft Holding Tool.
  10. Position the LH (inner) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.
    11. Fig 8: Aligning Copper (Marked) Link With Timing Mark On Crankshaft Sprocket
    G03962459Courtesy of FORD MOTOR CO.
  11. Install the LH timing chain on the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.
    12. Fig 9: Aligning Copper (Marked) Link With Timing Mark On Camshaft Sprocket
    G03962460Courtesy of FORD MOTOR CO.
    NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.
  12. Position the LH timing chain tensioner arm on the dowel pin and install the LH timing chain tensioner.
    • Tighten to 25 Nm (18 lb-ft).
    13. Fig 10: Positioning LH Timing Chain Tensioner Arm On Dowel Pin
    GF0002719Courtesy of FORD MOTOR CO.
  13. Remove the retaining clip from the LH timing chain tensioner.
    14. Fig 11: Identifying Retaining Clip AndTiming Chain Tensioner
    G03881591Courtesy of FORD MOTOR CO.
  14. Position the RH (outer) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.
    15. Fig 12: Aligning Copper (Marked) Link With Timing Mark On Crankshaft Sprocket
    G03948189Courtesy of FORD MOTOR CO.
  15. Install the RH timing chain on the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.
    16. Fig 13: Aligning Copper (Marked) Link With Timing Mark On Camshaft Sprocket
    G03885941Courtesy of FORD MOTOR CO.
  16. Position the RH timing chain tensioner arm on the dowel pin and install the RH timing chain tensioner.
    • Tighten to 25 Nm (18 lb-ft).
    17. Fig 14: Positioning RH Timing Chain Tensioner Arm On Dowel Pin
    GF0002720Courtesy of FORD MOTOR CO.
  17. Remove the retaining clip from the RH timing chain tensioner.
    18. Fig 15: View Of Retaining Clip And Timing Chain Tensioner
    G03881591Courtesy of FORD MOTOR CO.
  18. Make sure that the copper (marked) chain links are lined up with the dots on the crankshaft sprockets and the camshaft sprocket.
    19. Fig 16: Identifying Copper (Marked) Chain Links And Dots On Crankshaft Sprockets And Camshaft Sprockets
    G03962922Courtesy of FORD MOTOR CO.
    NOTE: Camshaft roller follower is shown removed for clarity.
  19. Install the special tool between the valve spring coils to prevent valve stem seal damage.
    20. Fig 17: Installing Special Tool Between Valve Spring Coils
    G03962476Courtesy of FORD MOTOR CO.
    NOTE: The camshaft roller followers must be reinstalled in their original locations.
    NOTE: Position the cam lobe away from the valve stem prior to installing each camshaft roller follower.
    NOTE: Lubricate the camshaft roller follower with clean engine oil prior to installation.
  20. Use the special tool to compress the valve springs, and install the camshaft roller follower.
    21. Fig 18: Using Special Tool To Compress Valve Springs And Installing Camshaft Roller Follower
    GF0002626Courtesy of FORD MOTOR CO.
    NOTE: The camshaft roller followers must be reinstalled in their original locations.
    NOTE: Lubricate the camshaft roller follower with clean engine oil prior to installation.
  21. Repeat the previous 3 steps for each of the camshaft roller followers.
  22. Install the crankshaft sensor ring on the crankshaft.
    23. Fig 19: Identifying Crankshaft Sensor Ring At Crankshaft
    G04583449Courtesy of FORD MOTOR CO.
    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: If the engine front cover is not secured within 4 minutes, the sealant must be removed and the sealing area cleaned with silicone gasket remover and metal surface prep. Follow the directions on the packaging. 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: Make sure that the engine front cover gasket is in place on the engine front cover before installation.
  23. Apply a bead of silicone gasket and sealant along the cylinder head-to-cylinder block surface and the oil pan-to-cylinder block surface, at the locations shown.
    24. Fig 20: Identifying Area For Silicone Gasket Application
    G03886057Courtesy of FORD MOTOR CO.
  24. Install a new engine front cover gasket on the engine front cover. Position the engine front cover. Install the fasteners finger-tight.
    25. Fig 21: Installing Engine Front Cover Gasket
    GF0000367Courtesy of FORD MOTOR CO.
  25. Tighten the engine front cover fasteners in the sequence shown to 25 Nm (18 lb-ft).
    Fig 22: Identifying Engine Front Cover Tightening Sequence
    GF0002614Courtesy of FORD MOTOR CO.
    Item Part Number Description
    1 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
    2 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
    3 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
    4 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
    5 N806177 Bolts, Hex Flange Head Pilot, M8 x 1.25 x 53
    6 W706508 Stud Hex Shoulder Pilot, M8 x 1.25 x 50- M6 x 1 x 10
    7 N808586 Stud and Washer, Hex Head Pilot, M8 x 1.25 - M6 x 1 x 86.35
    8 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
    9 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
    10 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
    11 N808294 Bolt, Hex Head Pilot, M8 x 1.25 x 53
    12 N806300 Stud Hex Shoulder Pilot, M8 x 1.25 x 1.25 x 91.1
    13 N806300 Stud Hex Shoulder Pilot, M8 x 1.25 x 1.25 x 91.1
    14 N806300 Stud Hex Shoulder Pilot, M8 x 1.25 x 1.25 x 91.1
    15 N806300 Stud Hex Shoulder Pilot, M8 x 1.25 x 1.25 x 91.1
  26. Install the camshaft position (CMP) sensor and the bolt.
    • Lubricate the O-ring seal with clean engine oil prior to installation.
    • Tighten to 10 Nm (89 lb-in).
    27. Fig 23: Locating LH CMP Sensor Bolt
    G03919989Courtesy of FORD MOTOR CO.
  27. Install the crankshaft position (CKP) sensor and the bolt.
    • Lubricate the O-ring seal with clean engine oil prior to installation.
    • Tighten to 10 Nm (89 lb-in).
    28. Fig 24: Locating Crankshaft Position (CKP) Sensor Bolt
    G03920231Courtesy of FORD MOTOR CO.
  28. Lubricate the engine front cover and the crankshaft front seal inner lip with clean engine oil.
    29. Fig 25: Locating Crankshaft Front Seal
    G03881970Courtesy of FORD MOTOR CO.
  29. Use the special tools to install a new crankshaft front seal into the engine front cover.
    30. Fig 26: Installing Crankshaft Front Seal Using Special Tools
    G03919891Courtesy of FORD MOTOR CO.
    NOTE: If not secured within 4 minutes, the sealant must be removed and the sealing area cleaned with silicone gasket remover and metal surface prep. Follow the directions on the packaging. 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.
  30. Apply silicone gasket and sealant to the Woodruff key slot on the crankshaft pulley.
    31. Fig 27: Identifying Woodruff Key Slot On Crankshaft Pulley
    G03948080Courtesy of FORD MOTOR CO.
  31. Use the special tool to install the crankshaft pulley.
    32. Fig 28: Installing Crankshaft Pulley Using Special Tool
    G03919878Courtesy of FORD MOTOR CO.
  32. Tighten the new crankshaft pulley bolt in 4 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.
    33. Fig 29: Identifying Crankshaft Pulley Bolt Tightening Sequence
    GF0002723Courtesy of FORD MOTOR CO.
  33. Install the 3 accessory drive belt idler pulleys, the coolant pump pulley and the bolts.
    • Tighten to 25 Nm (18 lb-ft).
    34. Fig 30: Locating Coolant Pump Pulley And Accessory Drive Belt Idler Pulley Bolts
    G03933688Courtesy of FORD MOTOR CO.
  34. Position the accessory drive belt tensioner and install the bolts.
    • Tighten to 25 Nm (18 lb-ft).
    35. Fig 31: Identifying Accessory Drive Belt Tensioner Bolts
    G03920234Courtesy of FORD MOTOR CO.
    CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean sealing surfaces. These tools cause scratches and gouges which make leak paths.
  35. Inspect and clean the valve cover sealing surfaces with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
  36. Apply instant adhesive completely around the gasket groove in the RH valve cover. Install the new valve cover gasket.
    37. Fig 32: Identifying Valve Cover Gasket Groove
    G03905398Courtesy of FORD MOTOR CO.
    NOTE: If not secured within 4 minutes, the sealant must be removed and the sealing area cleaned with silicone gasket remover and metal surface prep. Follow the directions on the packaging. 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.
  37. Apply silicone gasket and sealant in 2 places where the engine front cover meets the cylinder head.
    38. Fig 33: Applying Silicone Gasket And Sealant In 2 Places Where Engine Front Cover Meets Cylinder Head
    G03947588Courtesy of FORD MOTOR CO.
  38. Position the RH valve cover and gasket on the cylinder head and install the bolts loosely.
    39. Fig 34: Positioning RH Valve Cover And Gasket On Cylinder Head
    GF0002727Courtesy of FORD MOTOR CO.
  39. Position the RH valve cover and gasket and tighten the fasteners in the sequence shown to 10 Nm (89 lb-in).
    Fig 35: Identifying Valve Cover Tightening Sequence
    GF0002596Courtesy of FORD MOTOR CO.
    Item Part Number Description
    1 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    2 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    3 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    4 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    5 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    6 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    7 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    8 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    9 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    10 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    11 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    40. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean sealing surfaces. These tools cause scratches and gouges which make leak paths.
  40. Inspect and clean the valve cover sealing surfaces with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
  41. Apply instant adhesive completely around the gasket groove in the LH valve cover. Install the new valve cover gasket.
    42. Fig 36: Identifying Proper Valve Cover Gasket Sealant Application
    G03948210Courtesy of FORD MOTOR CO.
    NOTE: If not secured within 4 minutes, the sealant must be removed and the sealing area cleaned with silicone gasket remover and metal surface prep. Follow the directions on the packaging. 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.
  42. Apply silicone gasket and sealant in 2 places where the engine front cover meets the cylinder head.
    43. Fig 37: Applying Bead Of Silicone Gasket And Sealant In 2 Places Where Engine Front Cover Meets Cylinder Head
    G03947580Courtesy of FORD MOTOR CO.
  43. Position the LH valve cover and gasket and tighten the fasteners in the sequence shown to 10 Nm (89 lb-in).
    Fig 38: Identifying Valve Cover Tightening Sequence
    GF0002591Courtesy of FORD MOTOR CO.
    Item Part Number Description
    1 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    2 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    3 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    4 W705782 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    5 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    6 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    7 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    8 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    9 W705644 Pin Stud, Hex Flange Pilot, M6 x 1 x 73.76
    10 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    11 N806183 Bolt, Hex Flange Head Pilot, M6 x 1 x 42.5
    44. NOTE: RH shown, LH similar.
  44. Install the radio frequency interference capacitors.
    • Tighten to 25 Nm (18 lb-ft).
Fig 39: Identifying Radio Frequency Interference Capacitors
G03906363Courtesy of FORD MOTOR CO.


  1. Position the electrical harness onto the engine assembly and connect the engine wiring harness retainers to the valve cover studs.
  2. Connect the RH radio ignition interference capacitor electrical connector.
    3. Fig 1: Locating RH Radio Ignition Interference Capacitor Electrical Connector
    G03885622Courtesy of FORD MOTOR CO.
  3. Connect the LH radio ignition interference capacitor and cylinder head temperature (CHT) sensor electrical connectors.
    4. Fig 2: Locating LH Radio Ignition Interference Capacitor And Cylinder Head Temperature (CHT) Sensor Electrical Connectors
    G03962635Courtesy of FORD MOTOR CO.
  4. Position the upper radiator hose bracket and install the nut.
    • Tighten to 10 Nm (89 lb-in).
    5. Fig 3: Locating Upper Radiator Hose Bracket Nut
    GF0002609Courtesy of FORD MOTOR CO.
  5. Connect the CMP sensor electrical connectors.
    6. Fig 4: Locating Camshaft Position (CMP) Sensor Electrical Connector
    G03885221Courtesy of FORD MOTOR CO.
  6. Connect the knock sensor (KS) electrical connector and the wiring harness pin-type retainer.
    7. Fig 5: Locating Knock Sensor (KS) Electrical Connector
    GF0002682Courtesy of FORD MOTOR CO.
  7. Connect the engine oil pressure (EOP) sensor electrical connector.
    8. Fig 6: Locating Engine Oil Pressure (EOP) Sensor Electrical Connector
    GF0002681Courtesy of FORD MOTOR CO.
  8. Connect the CKP sensor electrical connector.
    9. Fig 7: Locating Crankshaft Position (CKP) Sensor Electrical Connector
    GF0002667Courtesy of FORD MOTOR CO.
    CAUTION: Clean the engine support insulator-to-cylinder block mating surfaces of any dirt or foreign material prior to installation.
  9. Position the RH engine support insulator and install the 3 bolts.
    • Apply Threadlock 262 to the bolt threads prior to installation.
    • Tighten to 63 Nm (46 lb-ft).
    10. Fig 8: Identifying RH Engine Support Insulator Bolts
    G03933620Courtesy of FORD MOTOR CO.
  10. Install the special tool.
    11. Fig 9: Identifying Special Tool
    G03962845Courtesy of FORD MOTOR CO.
  11. Using a suitable floor crane, remove the engine from the engine stand.
  12. Install the spacer plate.
    13. Fig 10: Locating Spacer Plate
    GF0002680Courtesy of FORD MOTOR CO.
  13. Install the flexplate and the 6 bolts. Tighten the bolts in 2 stages in the sequence shown.
    • Stage 1: Tighten to 20 Nm (15 lb-ft).
    • Stage 2: Tighten to 80 Nm (59 lb-ft).
    14. Fig 11: Identifying Flexplate Bolts Tightening Sequence
    G03947697Courtesy of FORD MOTOR CO.
  14. Install the engine. For additional information, refer to Engine  in this article.
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