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How to replace timing chains on Jaguar S-Type 4.0 32V 1999-2002

Special tools

  • Camshafts setting/locking tool – Jaguar No.303-530.
  • Timing chain tensioning tool – Jaguar No.303-532.
  • Crankshaft positioning tool – Jaguar No.303-645/303-531.
  • Primary chain wedges – Jaguar No.303-533.
  • Crankshaft pulley locking tool – Jaguar No.303-191/18G 1437.
  • Crankshaft pulley remover – Jaguar No.303-588.
  • Crankshaft pulley locking tool adapter – Jaguar No.303-191-02/18G 1437-2.

General precautions

  • Disconnect battery earth lead.NOTE: On XK8/R models: Open both doors before disconnecting the battery to allow the windows to open slightly.
  • Remove spark 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 Jaguar S-Type 4.0 32V 1999-2002
How to replace timing chains on Jaguar S-Type 4.0 32V 1999-2002

Removal

  • WARNING: Do not use crankshaft positioning tool to remove/install crankshaft pulley.
  • Remove crankshaft position (CKP) sensor from torque converter housing.
  • Turn the crankshaft to align slot for crankshaft positioning tool [1] .
  • Ensure that flats on RH camshafts are positioned upwards, if not turn crankshaft 360°.
  • Fit crankshaft positioning tool [1] .NOTE: Ensure that the positioning tool engages with the slot in the trigger-ring.
  • If fitted: Remove camshaft position actuators [2] and carriers [3] from cylinder heads.
  • Fit RH camshafts setting/locking tool [4] .
  • Slacken RH exhaust camshaft sprocket bolt [5] .
  • Slacken RH intake camshaft sprocket bolt [6] .
  • Remove RH timing chain tensioner [7] , blade [8] and guide [9] .
  • Remove RH timing chains and sprockets.
  • Remove RH camshafts setting/locking tool [4] .
  • Fit LH camshafts setting/locking tool [4] .
  • Slacken LH exhaust camshaft sprocket bolt [10] .
  • Slacken LH intake camshaft sprocket bolt [11] .
  • Remove LH timing chain tensioner [12] , blade [13] and guide [14] .
  • Remove LH timing chains and sprockets.
  • Remove camshaft coupling chain tensioners [15] .

Installation

  • WARNING: Ensure that crankshaft sprockets are installed correctly .
  • Ensure crankshaft positioning tool is installed [1] .
  • Ensure LH camshafts setting/locking tool is installed [4] .
  • Reset chain tensioners:
      • Insert a thin wire to release the check valves [17] & [18] .
      • Using hand pressure only, compress the tensioners.
  • Fit LH camshaft coupling chain tensioner [15] .
  • Fit LH camshaft coupling chain and sprockets. Do not tighten bolts.
  • Fit LH timing chain. Do not tighten bolts.
  • Fit LH timing chain tensioner [12] , blade [13] and guide [14] .

NOTE: Ensure that the oil gallery blanking plate is installed correctly.

  • Fit one or two primary chain wedges to take up slack [19] .
  • Using the timing chain tensioning tool, tension the LH exhaust sprocket anti-clockwise [20] .
  • Tighten LH exhaust camshaft sprocket bolt [10] .
  • Tighten LH intake camshaft sprocket bolt [11] .
  • Remove primary chain wedges [19] .
  • Remove LH camshafts setting/locking tool [4] .
  • Fit RH camshafts setting/locking tool [4] .
  • Fit RH camshaft coupling chain tensioner [15] .
  • Fit RH camshaft coupling chain and sprockets. Do not tighten bolts.
  • Fit RH timing chain. Do not tighten bolts.
  • Fit RH timing chain tensioner [7] , blade [8] and guide [9] .

NOTE: Ensure that the oil gallery blanking plate is installed correctly.

  • Fit one or two primary chain wedges to take up slack [19] .
  • Using the timing chain tensioning tool, tension the RH exhaust sprocket anti-clockwise [20] .
  • Tighten RH exhaust camshaft sprocket bolt [5] .
  • Tighten RH intake camshaft sprocket bolt [6] .
  • Remove primary chain wedges [19] .
  • Remove RH camshafts setting/locking tool [4] .
  • If fitted: Fit camshaft position actuators [2] and carriers [3] to cylinder heads.
  • Fit crankshaft vibration damper. Use new bolt.

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