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How to Replace timing chains on Land Rover Defender 2.4 Td4 2007-

Special tools

  • Flywheel timing pin – No.303-698.

General precautions

  • Disconnect battery earth lead.
  • Remove glow plugs to ease turning engine.
  • Turn engine in normal direction of rotation (unless otherwise stated).
  • Observe tightening torques.
  • If fitted: Mark position of crankshaft position (CKP) sensor before removal.
  • Do NOT turn crankshaft via camshaft or other sprockets.
  • Do NOT turn crankshaft or camshaft with timing chain removed.

Valve timing procedures

How to Replace timing chains on Land Rover Defender 2.4 Td4 2007-

Removal

  • Remove crankshaft position (CKP) sensor.
  • Turn crankshaft clockwise to setting position.

NOTE: Engine at 50° before TDC on No.1 cylinder.

  • Fit flywheel timing pin [1] .
  • Ensure timing mark on each camshaft sprocket aligned at 12 o’clock position [2] & [3] .
  • Insert 6 mm drill bits into camshaft sprockets [4] .
  • Slacken bolts of each camshaft sprocket and high-pressure fuel pump sprocket bolts [5] & [6] .
  • Lock timing chain tensioner in retracted position:
      • Release pawl [7] .
      • Push lock in [8] .
      • Insert suitable pin to lock tensioner plunger [9] .
  • Remove tensioner.
  • Remove tensioner rail, chain guides and timing chain.

Installation

  • Ensure flywheel timing pin inserted [1] .

NOTE: Engine at 50° before TDC on No.1 cylinder.

  • Align copper coloured chain links with timing mark on each sprocket [2] , [3] & [10] .
  • Ensure timing chain is taut between sprockets on non-tensioned side.
  • Remove pin from tensioner [9] .
  • Tighten bolts of each camshaft sprocket [5] . Tightening torque: 35 Nm.
  • Tighten high-pressure fuel pump sprocket bolts [6] . Tightening torque: 33 Nm.
  • Remove flywheel timing pin [1] .
  • Remove 6 mm drill bits [4] .
  • Turn crankshaft two turns clockwise.
  • Fit flywheel timing pin [1] .
  • Ensure 6 mm drill bits can be fitted [4] .
  • If not, repeat timing chain installation.
  • Remove flywheel timing pin [1] .
  • Remove 6 mm drill bits [4] .
  • Tighten crankshaft pulley bolts [11] . Tightening torque: 45 Nm + 90°.

NOTE: Crankshaft pulley bolts MUST only be used once.

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