Special tools

  • Camshaft alignment tools – No.303-1445.
  • Camshaft turning tools – No.303-1452.
  • Crankshaft pulley bolt socket – No.303-1438.
  • Crankshaft caster holding tool – No.303-1437.
  • Crankshaft pulley removal/installation tool one – No.303-1439.
  • Crankshaft pulley removal/installation tool 2 – No.303-1440.
  • Crankshaft pulley removal/installation tool iii – No.303-1441.
  • Crankshaft timing pivot (crankshaft position (CKP) sensor aperture) – No.303-1447.
  • Flywheel/bulldoze plate locking tool (starter motor discontinuity) – No.303-1448
  • Timing concatenation pre-tensioning tool – No.303-1482.

Full general precautions

  • Disconnect battery world atomic number 82.
  • Remove spark plugs to ease turning engine.
  • Turn engine in normal direction of rotation (unless otherwise stated).
  • Observe tightening torques.
  • If fitted: Marker position of crankshaft position (CKP) sensor before removal.
  • Practice NOT plough crankshaft via camshaft or other sprockets.
  • Exercise NOT turn crankshaft or camshaft with timing concatenation removed.

Valve timing procedures

How to Replace timing chains on Land Rover Discovery IV 5.0 V8 AWD 2009-

Removal

  • Remove crankshaft position (CKP) sensor.
  • Turn crankshaft in direction of engine rotation until crankshaft timing pin can be installed [1] .
  • Ensure crankshaft sprocket keyway at 6 o'clock position [2] .

NOTE: If crankshaft sprocket keyway at ix o'clock position, replace drive plate.

  • Ensure groove in rear of camshafts positioned as shown [iii] .
  • Remove RH depository financial institution timing chain tensioner and tensioner blade.
  • Slacken bolts of each RH banking company camshaft adjuster [4] .
  • Remove RH banking concern camshaft adjusters and timing chain.
  • Remove LH banking concern timing concatenation tensioner and tensioner blade.
  • Slacken bolts of each LH bank camshaft adjuster [5] .
  • Remove LH banking company camshaft adjusters and timing chain.

NOTE: Crankshaft sprocket friction washers MUST exist replaced [half dozen] .

Installation

  • Ensure crankshaft timing pin correctly fitted [1] .
  • Ensure crankshaft sprocket keyway at vi o'clock position [two] .
  • Ensure groove in rear of camshafts positioned as shown [3] .
  • Install camshaft turning tools to front of LH bank camshafts [7] .
  • Install camshaft alignment tool to rear of LH bank camshafts [8] .
  • Ensure camshaft alignment tool engages in stop of camshafts. Secure tool with bolts [ix] . Finger tighten bolts.
  • Stone camshafts slightly to ensure camshaft alignment tool located correctly.
  • Remove camshaft turning tools [7] .
  • Install camshaft turning tools to front of RH banking company camshafts [seven] .
  • Install camshaft alignment tool to rear of RH banking concern camshafts [8] .
  • Ensure camshaft alignment tool engages in end of camshafts. Secure tool with bolts [9] . Finger tighten bolts.
  • Rock camshafts slightly to ensure camshaft alignment tool located correctly.
  • Lock LH and RH bank timing chain tensioners in retracted position:

NOTE: There are 2 types of tensioner.

  • Tensioner – type A:
      • Push plunger into tensioner body in direction of pointer [10] .
      • Insert a suitable pivot into tensioner body to lock tensioner plunger in position [11] .
  • Tensioner – type B:
      • Turn tensioner pawl fully clockwise [12] .
      • Push plunger into tensioner body in direction of arrow [13] .
      • Turn tensioner pawl fully anti-clockwise [12] .
      • Insert a suitable pin into tensioner trunk to lock tensioner plunger in position [fourteen] .
  • Install LH depository financial institution camshaft adjusters and timing concatenation as an assembly. Finger tighten bolts.
  • Ensure coloured or painted chain links aligned with timing marks on each camshaft adjuster and chain guide [xv] , [sixteen] & [17] .
  • Install LH banking company timing chain tensioner and tensioner blade.
  • Install RH bank camshaft adjusters and timing chain as an assembly. Finger tighten bolts.
  • Ensure coloured or painted chain links aligned with timing marks on each camshaft adjuster and chain guide [18] , [19] & [20] .
  • Install RH bank timing chain tensioner and tensioner blade.
  • Remove pin to release timing chain tensioner plunger [11] & [14] .
  • Install timing chain pre-tensioning tool to LH bank inlet camshaft adjuster [21] .
  • Use a pre-tensioning torque of 35 Nm.
  • Tighten LH banking company frazzle camshaft adjuster bolts. Tightening torque: 32 Nm.
  • Tighten LH bank inlet camshaft adjuster bolts. Tightening torque: 32 Nm.
  • Remove timing concatenation pre-tensioning tool [21] .
  • Install timing concatenation pre-tensioning tool to RH bank exhaust camshaft adjuster [22] .
  • Apply a pre-tensioning torque of 35 Nm.
  • Tighten RH bank inlet camshaft adjuster bolts. Tightening torque: 32 Nm.
  • Tighten RH bank exhaust camshaft adjuster bolts. Tightening torque: 32 Nm.
  • Remove timing chain pre-tensioning tool [22] .
  • Remove camshaft alignment tools [viii] .
  • Remove crankshaft timing pin [1] .
  • Fit flywheel/bulldoze plate locking tool [23] .
  • Temporarily fit crankshaft pulley bolt with M16 washer. Tightening torque: 50 Nm.
  • Remove flywheel/bulldoze plate locking tool [23] .
  • Turn crankshaft two turns clockwise.
  • Fit flywheel/drive plate locking tool [23] .
  • Remove crankshaft pulley bolt.
  • Remove flywheel/drive plate locking tool [23] .
  • Turn crankshaft in management of engine rotation until crankshaft timing pin can exist installed [one] .
  • Ensure camshaft alignment tools can be fitted [8] . If non, repeat timing chain installation.
  • Remove camshaft alignment tools [8] .
  • Remove crankshaft timing pin [1] .
  • There are two types of crankshaft pulley bolt:
      • Commodities classification – 10.9 (RH thread).
      • Bolt classification – 12.9 (LH thread).
  • Tighten crankshaft pulley bolt. Apply new bolt. Tightening torque: 200 Nm + 270°.