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How to Replace timing chain on Renault Megane 3 1.4 2008-

Special tools

  • Flywheel locking tool – No.Mot.1431.
  • Crankshaft pulley holding tool – No.Mot.1917.

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

How to Replace timing chain on Renault Megane 3 1.4 2008-
How to Replace timing chain on Renault Megane 3 1.4 2008-

Removal

  • Removal/installation of timing chain requires:
      • Engine removal.
  • Engine at TDC on No.1 cylinder [1] .
  • Ensure timing marks positioned as shown [2] . If not, turn crankshaft 360°.
  • Lock timing chain tensioner in retracted position:
      • Turn lever to unlocked position [3] .
      • Press plunger into tensioner body [4] .
      • Turn lever to locked position [5] .
      • Insert 2,5 mm pin to lock tensioner plunger [6] .
  • Remove timing chain tensioner, tensioner rail and chain guide.
  • Align 7th tooth of inlet camshaft sprocket with threaded hole in cylinder head [7] . Count clockwise from camshaft adjuster timing mark.
  • Remove timing chain.

Installation

  • Ensure 7th tooth of inlet camshaft sprocket aligned with threaded hole in cylinder head [7] .
  • Ensure crankshaft sprocket timing mark at 6 o’clock position [8] .
  • Fit timing chain in anti-clockwise direction, starting at inlet camshaft sprocket.
  • Align marked or coloured chain links with timing mark on each sprocket [8] , [9] & [10] .
  • Install timing chain tensioner, tensioner rail and chain guide.
  • Remove pin to release timing chain tensioner plunger [6] .
  • Turn crankshaft two turns clockwise.
  • Ensure timing marks positioned as shown [2] .
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