Skip to content

Replace Timing Chain Manual for Land Rover Discovery 4 (09-) 5,0 2009-14

Manufacturer: Land Rover

Model: Discovery 4 (09-) 5,0

Engine code: 508PN

Output: 276 (375) 6500

Tuned for: R-Cat

Year: 2009-14

Special tools

  • Camshaft alignment tools – No.303-1445.
  • Camshaft turning tools – No.303-1452.
  • Crankshaft pulley bolt socket – No.303-1438.
  • Crankshaft pulley holding tool – No.303-1437.
  • Crankshaft pulley removal/installation tool 1 – No.303-1439.
  • Crankshaft pulley removal/installation tool 2 – No.303-1440.
  • Crankshaft pulley removal/installation tool 3 – No.303-1441.
  • Crankshaft timing pin (crankshaft position (CKP) sensor aperture) – No.303-1447.
  • Flywheel/drive plate locking tool (starter motor aperture) – No.303-1448
  • Timing chain pre-tensioning tool – No.303-1482.

General precautions

  • Disconnect battery earth lead.
  • 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 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 9 o’clock position, replace drive plate.

  • Ensure groove in rear of camshafts positioned as shown [3] .
  • Remove RH bank timing chain tensioner and tensioner blade.
  • Slacken bolts of each RH bank camshaft adjuster [4] .
  • Remove RH bank camshaft adjusters and timing chain.
  • Remove LH bank timing chain tensioner and tensioner blade.
  • Slacken bolts of each LH bank camshaft adjuster [5] .
  • Remove LH bank camshaft adjusters and timing chain.

NOTE: Crankshaft sprocket friction washers MUST be replaced [6] .

Installation

  • Ensure crankshaft timing pin correctly fitted [1] .
  • Ensure crankshaft sprocket keyway at 6 o’clock position [2] .
  • 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 end of camshafts. Secure tool with bolts [9] . Finger tighten bolts.
  • Rock camshafts slightly to ensure camshaft alignment tool located correctly.
  • Remove camshaft turning tools [7] .
  • Install camshaft turning tools to front of RH bank camshafts [7] .
  • Install camshaft alignment tool to rear of RH bank 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 two types of tensioner.

  • Tensioner type A:
  • Push plunger into tensioner body in direction of arrow [10] .
  • Insert a suitable pin 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 body to lock tensioner plunger in position [14] .
  • Install LH 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 [15] , [16] & [17] .
  • Install LH bank 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] .
  • Apply a pre-tensioning torque of 35 Nm.
  • Tighten LH bank exhaust camshaft adjuster bolts. Tightening torque: 32 Nm.
  • Tighten LH bank inlet camshaft adjuster bolts. Tightening torque: 32 Nm.
  • Remove timing chain pre-tensioning tool [21] .
  • Install timing chain 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 [8] .
  • Remove crankshaft timing pin [1] .
  • Fit flywheel/drive plate locking tool [23] .
  • Temporarily fit crankshaft pulley bolt with M16 washer. Tightening torque: 50 Nm.
  • Remove flywheel/drive 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 direction of engine rotation until crankshaft timing pin can be installed [1] .
  • Ensure camshaft alignment tools can be fitted [8] . If not, repeat timing chain installation.
  • Remove camshaft alignment tools [8] .
  • Remove crankshaft timing pin [1] .
  • There are two types of crankshaft pulley bolt:
  • Bolt classification – 10.9 (RH thread).
  • Bolt classification – 12.9 (LH thread).
  • Tighten crankshaft pulley bolt. Use new bolt. Tightening torque: 200 Nm + 270°.Hope the information will be usefull!
Land Rover Discovery 4 timing belt replace scheme
Land Rover Discovery 4 timing belt replace scheme

Related Cars

0 votes

Be First to Comment

Leave a Reply

Your email address will not be published. Required fields are marked *