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How to Replace Timing Chain Cover & Seal on Ford Edge and Lincoln MKX?


The procedure is similar for both ford and Lincoln car models:-----

The details to replace timing chain cover and seal are as follows:----

Removal & Installation




NOTE
The Timing Chain Cover is also often referred to as the Engine Front Cover.


NOTE
This procedure requires a number of specialized tools and equipment. Read through the procedure before beginning and be sure you have access to all of the equipment and tools you will need before beginning.


WARNING
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, may cause engine failure.

  1. Raise and safely support the vehicle.
  2. Recover the air conditioning system, using the proper equipment.
  3. Disconnect the negative battery cable.
  4. Remove the accessory drive belt, tensioner and the power steering belt, as outlined in this section.
  5. Remove the crankshaft pulley, as outlined in this section.
  6. Remove and discard the crankshaft front seal, as outlined in this section.
  7. Loosen the exhaust flexible pipe clamp and disconnect the 2 exhaust hangers.
  8. Remove the 4 nuts, the exhaust flexible pipe and the Y-pipe as an assembly. Discard the nuts and the gasket.
  9. Remove the 2 nuts and the roll restrictor heat shield.
  10. Remove the roll restrictor through bolt and the 2 roll restrictor-to-transaxle bracket plate bolts.
  11. Loosen the roll restrictor-to-subframe through bolt.
  12. Position the roll restrictor and transaxle bracket plate aside.
  13. Remove the 3 bolts and the transaxle bracket.
  14. Remove and discard the RH front halfshaft nut.
  15. Remove the RH stabilizer link-to-lower control arm nut.
  16. Remove the RH lower control arm-to-knuckle pinch bolt.
  17. Separate the lower control arm from the knuckle.
  18. Using a suitable front hub removal tool, separate the RH halfshaft from the hub.
  19. Using the special tools, separate the RH halfshaft from the intermediate shaft. Remove the RH halfshaft. 

    image
    Fig. Using the special tools, separate the RH halfshaft from the intermediate shaft. Remove the RH halfshaft
  20. Remove the drain plug and drain the engine oil. Install the drain plug and tighten to 20 ft. lbs. (27 Nm).
  21. If equipped, detach the engine block heater harness from the radiator support, the A/C suction tube and the engine wiring harness.
  22. Remove the engine air cleaner and air cleaner outlet pipe.
  23. Remove the LH and RH valve covers, as outlined in this section.
  24. Remove the safety clip from the A/C suction tube fitting.
  25. Disconnect the A/C suction tube fitting and position the tube aside.
  26. Remove the A/C pressure tube bracket bolt.
  27. Remove the nut and disconnect the A/C pressure tube fitting. Discard the O-ring seal. Position the A/C pressure tube aside.
  28. Disconnect the 2 engine wiring harness connectors.
  29. Remove the bolt and the ground wire from the engine front cover.
  30. Remove the nut, the ground wire and the radio interference capacitor wire from the engine front cover stud.
  31. Remove the nut, the ground wire and the radio interference capacitor from the cowl stud.
  32. Disconnect the purge valve electrical connector.
  33. Disconnect the 3 Powertrain Control Module (PCM) electrical connectors and position the wiring harness aside.
  34. Remove the 3 bolts and position the degas bottle aside.
    NOTE
    The area between the front of the engine and the body of the vehicle must be unobstructed in order to properly remove and install the engine front cover.
  35. Remove the 2 power steering reservoir nuts. Support the power steering reservoir and hose away from the front of the engine with a piece of wire.
  36. Remove the 3 power steering pump bolts.
  37. Support the power steering pump and hose away from the front of the engine with a piece of wire.
  38. Remove the bolts, the LH and the RH VCT solenoids.
    WARNING
    The special tool must be carefully aligned to the mounting bosses on the oil pan. Failure to follow these instructions may result in damage to the oil pan.


    NOTE
    The special tool and floor jack are used to raise and lower the engine to access the engine front cover and engine mount bracket fasteners.
  39. Position a floor jack and the special tool under the oil pan.
    WARNING
    The transaxle through bolt must be loosened prior to removing the engine mount and lowering the front of the engine. Failure to follow these instructions may cause internal damage to the hydraulic transaxle mount and possible fluid leakage.
  40. Loosen the transaxle mount through bolt.
  41. Remove the nut, bolt and engine mount brace.
  42. Remove the 4 engine mount nuts.
  43. Remove the 3 bolts and the engine mount.
  44. Remove the 2 bolts and the engine mount bracket.
  45. Remove the 2 engine mount studs.

    Click image to see an enlarged view
    Fig. Remove the 2 engine mount studs (arrows)
  46. Remove the 2 upper engine mount bracket bolts.
  47. Lower the engine to access the lower engine mount bracket bolt.
  48. Loosen the lower engine mount bracket bolt and remove the engine mount bracket and bolt as an assembly.
  49. Remove the 22 engine front cover bolts.
  50. 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.

    Click image to see an enlarged view
    Fig. 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
To install:
  1. Raise the engine to the installed position.
    WARNING
    Only use a 3M Roloc® Bristle Disk, (2 inch, white, part number 07528) to clean the engine front cover. Do not use metal scrapers, wire brushes or any other power abrasive disk to clean the engine front cover. These tools cause scratches and gouges that make leak paths.
  2. Clean the engine front cover 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.
  3. Thoroughly wash the engine front cover to remove any foreign material, including any abrasive particles created during the cleaning process.
    WARNING
    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.


    WARNING
    NEVER 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, including any sealant from the inner surface of the cylinder block and cylinder head.


    NOTE
    Observe all warnings or cautions and follow all application directions contained on the packaging of the silicone gasket remover and the metal surface prep.
  4. Clean the sealing surfaces of the cylinder heads, the cylinder block and the oil pan. Remove any large deposits of silicone or gasket material with a plastic scraper.
  5. 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.
  6. 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.
  7. Make sure the 2 locating dowel pins are seated correctly in the cylinder block.
  8. Install the special alignment pins, or equivalent tools, as shown in the illustration.
    WARNING
    Failure to use the correct RTV Silicone Sealant (TA-357) may cause the engine oil to foam excessively and result in serious engine damage.


    NOTE
    The engine front cover and bolts 17, 18, 19 and 20 must be installed within 4 minutes of the initial sealant application. The remainder of the engine front cover bolts and the engine mount bracket bolts must be installed and tightened within 35 minutes of the initial sealant application. If the time limits are exceeded, the sealant must be removed, the sealing area cleaned and sealant reapplied. To clean the sealing area, use silicone gasket remover and metal surface prep. Follow the directions on the packaging. Failure to follow this procedure can cause future oil leakage.



    Click image to see an enlarged view
    Fig. Install the alignment pins, or equivalent special tools as shown
  9. Apply a 0.11 inch (3.0 mm) bead of RTV Silicone Sealant (TA-357) to the engine front cover sealing surfaces including the 3 engine mount bracket bosses.
  10. Apply a 0.21 inch (5.5 mm) bead of RTV Silicone Sealant (TA-357) to the oil pan-to-cylinder block joint and the cylinder head-to-cylinder block joint areas of the engine front cover in 5 places as indicated.
    NOTE
    Make sure the 2 locating dowel pins are seated correctly in the cylinder block.



    Click image to see an enlarged view
    Fig. Front cover sealant application locations
  11. Install the engine front cover and bolts 17, 18, 19 and 20. Tighten in sequence to 27 inch lbs. (3 Nm).
  12. Remove the special tools (alignment pins).
    NOTE
    Do not tighten the bolt at this time.
  13. Lower the engine to allow installation of the engine mount bracket and lower bolt.
  14. Install the engine mount bracket and lower bolt as an assembly.
    NOTE
    Do not tighten the bolts at this time.
  15. Raise the engine to the installed position.
  16. Install the 2 upper engine mount bracket bolts.
    WARNING
    Do not expose the RTV Silicone Sealant (TA-357) to engine oil for at least 90 minutes after installing the engine front cover. Failure to follow this instruction may cause oil leakage.
  17. Install the remaining engine front cover bolts. Tighten all of the engine front cover bolts and engine mount bracket bolts in the sequence shown in 2 steps:
    1. Step 1: Tighten bolts 1 thru 22 to 89 inch lbs. (10 Nm) and bolts 23, 24 and 25 to 11 ft. lbs. (15 Nm).
    2. Step 2: Tighten bolts 1 thru 22 to 18 ft. lbs. (24 Nm) and bolts 23, 24 and 25 to 55 ft. lbs. (75 Nm).
      NOTE
      The thread sealer on the engine mount studs (including new engine mount studs if applicable) must be cleaned off with a wire brush and new thread sealer applied prior to installing the engine mount studs. Failure to follow this procedure may result in damage to the engine mount studs or engine.



      Click image to see an enlarged view
      Fig. Front cover bolt locations and tightening sequence
  18. Install the 2 engine mount studs in the following sequence:
    1. Clean the front cover engine mount stud holes with pressurized air to remove any foreign material.
    2. Clean all the thread sealer from the engine mount studs (old and new studs).
    3. Apply new thread sealer to the engine mount stud threads.
    4. Install the 2 engine mount studs and tighten to 15 ft. lbs. (20 Nm).
  19. Install the engine mount bracket and the 2 bolts. Tighten to 22 ft. lbs. (30 Nm).
  20. Install the engine mount and the 3 bolts. Tighten to 66 ft. lbs. (90 Nm).
  21. Install the 4 engine mount nuts. Tighten to 46 ft. lbs. (63 Nm).
  22. Install the engine mount brace, nut and bolt. Tighten to 15 ft. lbs. (20 Nm).
  23. Tighten the transaxle mount through bolt to 129 ft. lbs. (175 Nm).
  24. Install the LH and RH VCT solenoids and bolts. Tighten to 89 inch lbs. (10 Nm).
  25. Install the power steering pump and the 3 bolts. Tighten to 18 ft. lbs. (24 Nm).
  26. Install the power steering reservoir and the 2 nuts. Tighten to 71 inch lbs. (8 Nm).
  27. Install the degas bottle and the 3 bolts. Tighten to 80 inch lbs. (9 Nm).
  28. Connect the 3 PCM electrical connectors.
  29. Connect the purge valve electrical connector.
  30. Install the radio interference capacitor, the ground wire and the nut to the cowl stud. Tighten to 89 inch lbs. (10 Nm).
  31. Install the radio interference capacitor wire, the ground wire and the nut to the engine front cover stud. Tighten to 89 inch lbs. (10 Nm).
  32. Install the ground wire and bolt on the engine front cover. Tighten to 89 inch lbs. (10 Nm).
  33. Connect the 2 engine wiring harness connectors.
  34. Using a new O-ring seal, connect the A/C pressure tube fitting and install the nut. Tighten to 71 inch lbs. (8 Nm).
  35. Install the A/C pressure tube bracket and bolt. Tighten to 71 inch lbs. (8 Nm).
  36. Connect the A/C suction tube fitting. Install the safety clip onto the fitting.
  37. Install the LH and RH valve covers, as outlined in this section.
  38. Install the engine air cleaner and air cleaner outlet pipe.
  39. If equipped, attach the engine block heater harness to the radiator support, the A/C suction tube and the engine wiring harness.
  40. Align the RH halfshaft splines with the intermediate shaft and push the halfshaft on until the circlip locks the shafts together.
  41. Pull the inboard halfshaft outward to make sure the circlip is locked.
    NOTE
    Do not tighten the halfshaft nut at this time.
  42. Install the RH halfshaft into the hub and install a new halfshaft nut.
  43. Install the RH lower ball joint into the steering knuckle and install the pinch bolt. Tighten to 41 ft. lbs. (55 Nm).
  44. Install the RH stabilizer bar link into the lower control arm and install the nut. Tighten to 66 ft. lbs. (90 Nm).
  45. Apply the brake to keep the halfshaft from rotating, then tighten the RH halfshaft nut to 258 ft. lbs. (350 Nm).
  46. Install and the transaxle bracket and the 3 bolts. Tighten to 66 ft. lbs. (90 Nm).
  47. Position the roll restrictor and transaxle bracket plate and install the 3 bolts. Tighten to 66 ft. lbs. (90 Nm).
  48. Tighten the engine roll restrictor-to-subframe through bolt to 76 ft. lbs. (103 Nm).
  49. Install the roll restrictor heat shield and the 2 nuts. Tighten to 80 inch lbs. (9 Nm).
  50. Position the Y-pipe assembly in place and install the 4 nuts. Tighten to 30 ft. lbs. (40 Nm).
  51. Install the 2 exhaust hangers and tighten the exhaust clamp. Tighten to 30 ft. lbs. (40 Nm).
    NOTE
    Apply clean engine oil to the crankshaft front seal bore in the engine front cover.
  52. Install a new crankshaft front seal, as outlined in this section.
    NOTE
    Lubricate the outside diameter sealing surfaces with clean engine oil.
  53. Install the crankshaft pulley, as outlined in this section.
  54. Install the accessory drive belt, tensioner and the power steering belt, as outlined in this section.
  55. Fill the engine with clean engine oil.
  56. Connect the negative battery cable.
  57. Evacuate and recharge the air conditioning system.



These details will help.
Thanks.

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