LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2007 >> Expedition 4WD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine >> In-Vehicle Servicing >> Timing Drive Components >> Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Timing Drive Components: Installation

  1. Install the LH and RH camshafts.
    • Lubricate the camshaft and camshaft journals with clean engine oil prior to installation.
  2. NOTE: LH shown, RH similar.
  3. Install the LH and RH camshaft bearing caps in their original locations.
    • Lubricate the camshaft bearing caps with clean engine oil.
    • Position the front camshaft bearing cap.
    • Position the remaining camshaft bearing caps.
    • Install the bolts loosely.
    • Tighten to 10 Nm (89 lb-in) in the sequence shown.
  4. Fig 1: Identifying Camshaft Bearing Cap Bolt Loosening/Tightening Sequence
    G03919956Courtesy of FORD MOTOR CO.
    CAUTION: Damage to the variable camshaft timing (VCT) phaser sprocket assembly will occur if mishandled or used as a lifting or leveraging device.
    NOTE: LH shown, RH similar.
  5. Install the VCT phaser sprockets and new VCT phaser sprocket bolts finger tight.
  6. Fig 2: Identifying Camshaft Phaser And Sprocket Assembly Bolt
    G03919961Courtesy of FORD MOTOR CO.
    CAUTION: Damage to the variable camshaft timing (VCT) phaser sprocket assembly will occur if mishandled or used as a lifting or leveraging device.
    CAUTION: Only use hand tools to remove the variable camshaft timing (VCT) phaser sprocket assembly or damage may occur to the camshaft or VCT phaser sprocket.
    NOTE: LH shown, RH similar.
  7. Using the special tool, tighten the LH and RH VCT phaser sprocket bolts in 2 stages.
    • Stage 1: Tighten to 40 Nm (30 lb-ft).
    • Stage 2: Tighten an additional 90 degrees.
  8. Fig 3: Identifying Special Sprocket Phaser Tool
    G03919955Courtesy of FORD MOTOR CO.
  9. Position the crankshaft with the special tool, then remove the tool.
  10. Fig 4: Positioning Crankshaft With Special Tool (303-448)
    G03919963Courtesy 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. Failure to follow these instructions may result in engine damage.
  11. Compress the tensioner plunger, using a vise.
  12. Fig 5: Compressing Tensioner Plunger
    G03885344Courtesy of FORD MOTOR CO.
  13. Install a retaining clip on the tensioner to hold the plunger in during installation.
  14. Fig 6: Identifying Retaining Clip on Tensioner
    G03881580Courtesy of FORD MOTOR CO.
  15. Remove the tensioner from the vise.
  16. If the copper links are not visible, mark 2 links on one end and 1 link on the other end, and use as timing marks.
  17. Fig 7: Locating Timing Chain Marks
    G03885317Courtesy of FORD MOTOR CO.
  18. Install the crankshaft sprocket, making sure the flange faces forward.
  19. Fig 8: Identifying Crankshaft Sprocket
    G03919967Courtesy of FORD MOTOR CO.
  20. Install the 4 bolts and the LH and RH timing chain guides.
    • Tighten to 10 Nm (89 lb-in).
  21. Fig 9: Identifying Timing Chain Guides
    G03933858Courtesy of FORD MOTOR CO.
  22. Position the lower end of the LH (inner) timing chain on the crankshaft sprocket, aligning the timing mark on the outer flange of the crankshaft sprocket with the single copper (marked) link on the chain.
  23. Fig 10: Aligning Crankshaft Sprocket Timing Mark And LH Timing Chain Link
    G03919969Courtesy of FORD MOTOR CO.
    NOTE: Make sure the upper half of the timing chain is below the tensioner arm dowel.
  24. Position the timing chain on the VCT phaser sprocket with the timing mark positioned between the 2 copper (marked) chain links.
  25. Fig 11: Identifying Copper Links Of Timing Chain On VCT Phaser Sprocket
    G03919970Courtesy of FORD MOTOR CO.
    NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.
  26. Position the LH timing chain tensioner arm on the dowel pin and install the LH timing chain tensioner and bolts.
    • Tighten to 25 Nm (18 lb-ft).
  27. Fig 12: Identifying LH Timing Chain Tensioner & Tensioner Arm
    G03919950Courtesy of FORD MOTOR CO.
  28. Remove the retaining clip from the LH timing chain tensioner.
  29. Fig 13: View Of Retaining Clip And Timing Chain Tensioner
    G03881591Courtesy of FORD MOTOR CO.
  30. Position the lower end of the RH (outer) timing chain on the crankshaft sprocket, aligning the timing mark on the sprocket with the single copper (marked) chain link.
  31. Fig 14: Aligning Crankshaft Sprocket Timing Mark And RH Timing Chain Link
    G03919973Courtesy of FORD MOTOR CO.
    NOTE: The camshaft phaser and sprocket will be stamped with one of the illustrated timing marks for the RH camshaft.
  32. Position the RH timing chain on the VCT phaser sprocket with the timing mark positioned between the 2 copper (marked) chain links.
  33. Fig 15: Positioning RH Timing Chain On Camshaft Sprocket
    GF0002756Courtesy of FORD MOTOR CO.
  34. Position the RH timing chain tensioner arm on the dowel pin and install the RH timing chain tensioner and bolts.
    • Tighten to 25 Nm (18 lb-ft).
  35. Fig 16: Identifying RH Timing Chain Tensioner, Tensioner Arm And Bolts
    G03919951Courtesy of FORD MOTOR CO.
  36. Remove the retaining clip from the RH timing chain tensioner.
  37. Fig 17: View Of Retaining Clip And Timing Chain Tensioner
    G03881591Courtesy of FORD MOTOR CO.
  38. As a post-check, verify correct alignment of all timing marks.
  39. Fig 18: Checking Correct Alignment Of All Timing Marks
    GF0002757Courtesy of FORD MOTOR CO.
  40. Install the crankshaft sensor ring on the crankshaft.
  41. Fig 19: View Of Crankshaft Sensor Ring At Crankshaft
    G04583449Courtesy of FORD MOTOR CO.
    CAUTION: If the components are to be reinstalled, they must be installed in the same positions. Failure to follow these instructions may result in engine damage.
    NOTE: Do not allow the valve keepers to fall off of the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed. For additional information, refer to Cylinder Head .
    NOTE: It may be necessary to push the valve down while compressing the spring.
  42. Using the special tool, install all of the camshaft roller followers.
    • Lubricate the camshaft roller followers with clean engine oil prior to installation.
  43. Fig 20: Compressing Spring Using Special Tool
    G03919948Courtesy of FORD MOTOR CO.
  44. Install the engine front cover. For additional information, refer to Engine Front Cover .