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How to Replace timing chain on Renault Scenic/Grand Scenic III 2.0D dCi 2009

Renault Scenic/Grand Scenic III 2.0D dCi 2009 cambelt change instructions and replacement inteval. Full guide!

Special tools

  • Camshaft holding/alignment tool – No.Mot-1769.
  • Crankshaft pulley holding tool – No.Mot-1770.
  • Crankshaft timing pin – No.Mot-1766.
  • Flywheel locking tool – No.Mot-1431.
  • Two-piece inlet camshaft gear alignment tool – No.Mot-1773.

Special 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 belt on Renault Scenic/Grand Scenic III 2.0D dCi 2009
How to Replace timing belt on Renault Scenic/Grand Scenic III 2.0D dCi 2009

Removal

  • Removal/installation of timing chain requires:
    • Engine removal.
  • Ensure engine at TDC on No.1 cylinder.
  • Turn crankshaft clockwise until crankshaft keyway aligned with hole [1] & [2] .
  • Fit crankshaft timing pin [3] .
  • Turn crankshaft anti-clockwise until it stops against timing pin.
  • Ensure crankshaft keyway at 12 o’clock position [4] .
  • Ensure groove in exhaust camshaft is horizontal [5] . Large section above groove facing upwards [6] .
  • Ensure timing mark on inlet camshaft gear aligned at 12 o’clock position [7] .
  • Slacken exhaust camshaft sprocket bolts [8] .
  • Lock timing chain tensioner in retracted position:
    • Depress tensioner blade [9] .
    • Insert 3 mm pin to lock tensioner plunger [10] .
  • Remove chain tensioner, tensioner rail and chain guide.
  • Remove timing chain, exhaust camshaft sprocket and crankshaft sprocket as an assembly.
  • Fit camshaft holding/alignment tool [11] .
  • Secure tool with M6 bolt [12] .
  • Slacken inlet camshaft gear bolt [13] .
  • Remove camshaft holding/alignment tool [11] .
  • Align gear teeth of two-piece inlet camshaft gear. Use screwdriver [14] .
  • Remove exhaust camshaft gear.
  • Remove two-piece inlet camshaft gear.

Installation

  • Ensure groove in exhaust camshaft is horizontal [5] . Large section above groove facing upwards [6] .
  • Ensure groove in inlet camshaft at 12 o’clock position [15] .
  • Ensure crankshaft timing pin correctly fitted [3] .
  • Ensure crankshaft keyway at 12 o’clock position [4] .
  • Align two-piece inlet camshaft gear on inlet camshaft gear alignment tool and lock with suitable pin [16] & [17] . Fit two-piece inlet camshaft gear.
  • Ensure timing mark on inlet camshaft gear aligned at 12 o’clock position [7] . Tighten inlet camshaft gear bolt finger tight [13] .
  • Fit exhaust camshaft gear.

NOTE: Ensure threaded holes positioned in centre of slots [18] .

  • Remove locking pin from two-piece inlet camshaft gear [17] . Fit camshaft holding/alignment tool [11] .
  • Fit new inlet camshaft gear bolt [13] .
  • Tightening torque: 20 Nm + 35°±6°. Remove camshaft holding/alignment tool [11] .
  • Ensure groove in exhaust camshaft is horizontal [5] .
  • Large section above groove facing upwards [6] .
  • Ensure groove in inlet camshaft at 12 o’clock position [15] .
  • Ensure crankshaft keyway at 12 o’clock position [4] . Install chain guide.
  • Align coloured chain link with crankshaft sprocket timing mark [19] .
  • Align coloured chain link with camshaft sprocket timing mark [20] .
  • Install timing chain, exhaust camshaft sprocket and crankshaft sprocket as an assembly. Tighten exhaust camshaft sprocket bolts finger tight [8] .
  • Ensure camshaft sprocket turns freely. Install timing chain tensioner rail. Install chain tensioner.
  • Remove chain tensioner locking pin [10] .
  • Fit camshaft holding/alignment tool [11] .
  • Secure tool with M6 bolt [12] .
  • Ensure camshaft holding/alignment tool can be fitted. If not, repeat adjustment procedure of camshafts. Fit new exhaust camshaft sprocket bolts [8] .
  • Tightening torque: 10 Nm + 40°±6°.
  • Remove camshaft holding/alignment tool [11] . Remove crankshaft timing pin [3] .
  • Fit new crankshaft pulley centre bolt. Tightening torque: 50 Nm + 85°±6°.

NOTE: DO NOT start engine without auxiliary drive belt fitted as damage may occur to crankshaft pulley.

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