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Home >> Ford >> 2012 >> Taurus Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1871 (Engine Mechanical - 6.8L (3V) -- F450 & F550 Super Duty) >> In-Vehicle Repair >> Valve Seals >> Installation

Valve Seals: Installation

WARNING: This page is about a different car, the 2012 Ford F550 Super Duty and 2012 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

All valve seals 

    NOTE: Lubricate the valve seal and valve stem with clean engine oil prior to installation.
  1. Position a new valve seal onto the valve stem.
  2. Using the Valve Stem Oil Seal Installer, install the new valve seal.
    Fig 1: Installing Valve Seal Using Valve Stem Oil Seal Installer
    G06126401Courtesy of FORD MOTOR CO.
  3. NOTE: If the components are to be reinstalled, they must be installed in their original locations or engine damage may occur.
    Fig 2: Compressing Valve Spring Using Valve Spring Compressor
    G06126394Courtesy of FORD MOTOR CO.
  4. Using the Valve Spring Compressor, install the valve spring, the valve spring retainer and the valve spring retainer keys.
  5. Relieve the air pressure from the cylinder.
  6. NOTE: If the components are to be reinstalled, they must be installed in their original locations or engine damage may occur.
    NOTE: Do not allow the valve keepers to fall off 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.
    NOTE: Lubricate the camshaft roller followers with clean engine oil prior to installation.
    Fig 3: Installing Camshaft Roller Followers
    G06126254Courtesy of FORD MOTOR CO.
  7. Using the Valve Spring Compressor, compress the valve spring and install the camshaft roller follower.

    Cylinder No. 7 front intake valve seal 

  8. Position the camshaft bearing cap and install the 2 bolts.
    • Tighten to 10 Nm (89 lb-in).
    Fig 4: Identifying Bolts And Middle Balance Shaft Bearing Support And Camshaft Bearing Cap Assembly
    G06773362Courtesy of FORD MOTOR CO.
  9. Lubricate the balance shaft journals with clean engine oil.
  10. NOTE: Camshaft sprocket removed from art for clarity.
    NOTE: It may be necessary to rotate the crankshaft to align the balance shaft timing marks.
    Fig 5: Aligning Timing Mark On Balance Shaft With Camshaft Timing Mark
    G06597097Courtesy of FORD MOTOR CO.
  11. Position the balance shaft on the journals and align the timing mark on the balance shaft with the camshaft timing mark as shown in illustration.
  12. NOTE: The balance shaft bearing caps must be installed into their original locations or engine damage may occur.
    Fig 6: Identifying Balance Shaft Bearing Cap Bolts Tightening Sequence
    G06773319Courtesy of FORD MOTOR CO.
  13. Position the 3 balance shaft bearing caps and install the 6 bolts and tighten in the sequence shown in illustration.
    • Tighten to 10 Nm (89 lb-in).

    Cylinder No. 10 front intake valve seals 

  14. Position the camshaft bearing cap and install the 2 bolts.
    • Tighten to 10 Nm (89 lb-in).
    Fig 7: Identifying Bolts And Rear Balance Shaft Bearing Support And Camshaft Bearing Cap Assembly
    G06773365Courtesy of FORD MOTOR CO.
  15. Lubricate the balance shaft journals with clean engine oil.
  16. NOTE: Camshaft sprocket removed from art for clarity.
    NOTE: It may be necessary to rotate the crankshaft to align the balance shaft timing marks.
    Fig 8: Aligning Timing Mark On Balance Shaft With Camshaft Timing Mark
    G06597097Courtesy of FORD MOTOR CO.
  17. Position the balance shaft on the journals and align the timing mark on the balance shaft with the camshaft timing mark as shown in illustration.
  18. NOTE: The balance shaft bearing caps must be installed into their original locations or engine damage may occur.
    Fig 9: Identifying Balance Shaft Bearing Cap Bolts Tightening Sequence
    G06773319Courtesy of FORD MOTOR CO.
  19. Position the 3 balance shaft bearing caps and install the 6 bolts and tighten in the sequence shown in illustration.
    • Tighten to 10 Nm (89 lb-in).

    All valve seals 

  20. Install the spark plug. For additional information, refer to ENGINE IGNITION - 6.8L (3V) .
  21. Depending on the valve being serviced, install the LH or RH valve cover. For additional information, refer to Valve Cover - LH  or Valve Cover - RH .