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How to Replace timing chain on BMW M3 4.0 309KW E90 2007-

Special tools

  • Camshaft alignment tools – BMW No.11 9 970.
  • Crankshaft pulley holding tool – BMW No.11 0 280.
  • Crankshaft timing pin – BMW No.11 0 480 or 11 5 320.
  • Flywheel locking tool – BMW No.11 9 260.
  • Flywheel locking tool adaptor – BMW No.11 9 263.

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.
How to Replace timing chain on BMW M3 4.0 309KW E90 2007-
How to Replace timing chain on BMW M3 4.0 309KW E90 2007-

Valve timing procedures

  • Removal/installation of timing chain requires:
      • Sump removal.
      • Oil pump removal.
  • Checking LH bank valve timing:
      • Engine at TDC on No.1 cylinder compression stroke.
      • Insert crankshaft timing pin [1] .
      • Ensure crankshaft timing pin engages with TDC slot in crankshaft pulley [2] .
      • Ensure part number on each camshaft is facing upwards [3] .
      • Ensure camshaft lobes for No.5 cylinder are positioned as shown [4] .
      • Install camshaft alignment tools [5] & [6] .
      • Timing correct when camshaft alignment tools abut cylinder head or are raised up to a maximum of 1 mm on one side of each alignment tool.
      • If not, adjust valve timing.
  • Checking RH bank valve timing:
      • Remove special tools.
      • Turn crankshaft one turn clockwise.
      • Engine at TDC on No.1 cylinder exhaust stroke.
      • Insert crankshaft timing pin [1] .
      • Ensure crankshaft timing pin engages with TDC slot in crankshaft pulley [2] .
      • Ensure part number on each camshaft is facing downwards.
      • Ensure camshaft lobes for No.1 cylinder are positioned as shown [7] .
      • Install camshaft alignment tools [5] & [6] .
      • Timing correct when camshaft alignment tools abut cylinder head or are raised up to a maximum of 1 mm on one side of each alignment tool.
      • If not, adjust valve timing.
      • Remove special tools.
  • Adjust LH bank valve timing as follows:
      • Engine at TDC on No.1 cylinder compression stroke.
      • Ensure part number on each camshaft is facing upwards [3] .
      • Install camshaft alignment tool to inlet camshaft [5] .
      • Secure tool with bolts. Tightening torque: 10 Nm.
      • Install camshaft alignment tool to exhaust camshaft [6] .
      • Secure tool with bolts. Tightening torque: 10 Nm.
      • Slacken bolt of each camshaft adjuster (LH thread) [10] .
      • Replace bolt on each camshaft adjuster and re-tighten by hand (LH thread) [10] .
      • Turn crankshaft anti-clockwise to 10° BTDC on No.1 cylinder.
      • Insert crankshaft timing pin [1] .
      • Ensure crankshaft timing pin engages with 10° BTDC slot in crankshaft pulley [9] .
      • Tighten bolt of each camshaft adjuster in four stages [10] .
      • Stage 1: Tighten bolt to 20 Nm.
      • Stage 2: Tighten bolt to 80 Nm + 200°.
      • Stage 3: Slacken 360°.
      • Stage 4: Tighten bolt to 10 Nm.
      • Tighten bolt of inlet camshaft adjuster first.
      • Remove crankshaft timing pin [1] .
      • Turn crankshaft clockwise to TDC on No.1 cylinder.
      • Insert crankshaft timing pin [1] .
      • Ensure crankshaft timing pin engages with TDC slot in crankshaft pulley [2] .
      • Tighten bolt of each camshaft adjuster in two stages:
      • Stage 1: Tighten bolt to 20 Nm.
      • Stage 2: Tighten bolt to 80 Nm + 200°.

NOTE: Tighten bolt of inlet camshaft adjuster first.

  • Adjust RH bank valve timing as follows:
      • Engine at TDC on No.1 cylinder compression stroke.
      • Ensure part number on each camshaft is facing upwards [3] .
      • Install camshaft alignment tool to inlet camshaft [6] .
      • Turn inlet camshaft slowly anti-clockwise using spanner on hexagon, until camshaft alignment tool abuts cylinder head.
      • Secure tool with bolts. Tightening torque: 10 Nm.
      • Install camshaft alignment tool to exhaust camshaft [5] .
      • Turn exhaust camshaft slowly clockwise using spanner on hexagon, until camshaft alignment tool abuts cylinder head.
      • Secure tool with bolts. Tightening torque: 10 Nm.
      • Slacken bolt of each camshaft adjuster (LH thread) [8] .
      • Replace bolt on each camshaft adjuster and re-tighten by hand (LH thread) [8] .
      • Turn crankshaft anti-clockwise to 10° BTDC on No.1 cylinder.
      • Insert crankshaft timing pin [1] .
      • Ensure crankshaft timing pin engages with 10° BTDC slot in crankshaft pulley [9] .
      • Tighten bolt of each camshaft adjuster in four stages [8] .
      • Stage 1: Tighten bolt to 20 Nm.
      • Stage 2: Tighten bolt to 80 Nm + 200°.
      • Stage 3: Slacken 360°.
      • Stage 4: Tighten bolt to 10 Nm.
      • Tighten bolt of inlet camshaft adjuster first.
      • Remove crankshaft timing pin [1] .
      • Turn crankshaft clockwise to TDC on No.1 cylinder.
      • Insert crankshaft timing pin [1] .
      • Ensure crankshaft timing pin engages with TDC slot in crankshaft pulley [2] .
      • Tighten bolt of each camshaft adjuster in two stages:
      • Stage 1: Tighten bolt to 20 Nm.
      • Stage 2: Tighten bolt to 80 Nm + 200°.

NOTE: Tighten bolt of inlet camshaft adjuster first.

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