Timing Chain: Installation

2021 Ford Edge SE, 4WDSECTION Installation
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

LH timing chain 

  1. Install the LH timing chain.

    1. Align the colored link on the timing chain with the timing mark on the LHVCT assembly.
    2. Align the remaining colored link on the timing chain with the timing mark on the crankshaft sprocket.

    GFD555488Courtesy of FORD MOTOR COMPANY
  2. NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to install the LH timing chain guide. Return the crankshaft keyway to the 4:00 position after installing the LH timing chain guide.

    Install the LH timing chain guide and bolt.

    Torque:Stage 1: 89 lb.in (10 Nm)

    Stage 2: 25 deg.

    GFD555486Courtesy of FORD MOTOR COMPANY
  3. NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to install the LH timing chain arm. Return the crankshaft keyway to the 4:00 position after installing the LH timing chain arm.

    Install the LH timing chain tensioner arm.

    GFD555485Courtesy of FORD MOTOR COMPANY
    1. Compress the primary timing chain tensioner plunger, using an edge of a vise. Use the General Equipment: Vise
    2. Install a suitable pin into the hole of the tensioner housing to hold the plunger in place during installation.
    GFD555489Courtesy of FORD MOTOR COMPANY
    1. Install the LH primary timing chain tensioner and bolts.

      Torque:Stage 1: 89 lb.in (10 Nm)

      Stage 2: 25 deg.

    2. Remove the holding pin from the tensioner.
    GFD555490Courtesy of FORD MOTOR COMPANY
  4. Using the special tool, rotate the crankshaft clockwise until the keyway is at the 9:00 position. Use Special Service Tool: 303-448 (T93P-6303-A) Holding Tool, Crankshaft.
    GFD555491Courtesy of FORD MOTOR COMPANY

    RH and LH timing chains 

  5. Install the RH timing chain.

    1. Align the colored link on the timing chain with the timing mark on the RHVCT assembly.
    2. Align the remaining colored link on the timing chain with the timing mark on the crankshaft sprocket.

    GFD555492Courtesy of FORD MOTOR COMPANY
  6. NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to install the RH timing chain guide. Return the crankshaft keyway to the 9:00 position after installing the RH timing chain guide.

    Install the RH timing chain guide and bolt.

    Torque:Stage 1: 89 lb.in (10 Nm)

    Stage 2: 25 deg.

    GFD555480Courtesy of FORD MOTOR COMPANY
  7. NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to install the RH timing chain arm. Return the crankshaft keyway to the 9:00 position after installing the RH timing chain arm.

    Install the RH timing chain tensioner arm.

    GFD555479Courtesy of FORD MOTOR COMPANY
    1. Compress the primary timing chain tensioner plunger, using an edge of a vise. Use the General Equipment: Vise
    2. Install a suitable pin into the hole of the tensioner housing to hold the plunger in place during installation.
    GFD555489Courtesy of FORD MOTOR COMPANY
    1. Install the RH primary timing chain tensioner and bolts.

      Torque:Stage 1: 89 lb.in (10 Nm)

      Stage 2: 25 deg.

    2. Remove the holding pin from the tensioner.
    GFD555493Courtesy of FORD MOTOR COMPANY
  8. Install the following items:

    1. Spark plugs. Refer to: Spark Plugs .
    2. Engine front cover. Refer to: Engine Front Cover .

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.