TorqFix

Outlander (CW) 6B31 timing belt — MITSUBISHI

Outlander (CW) 6B31 timing belt on Mitsubishi: 107 steps, engines 6B31. What to remove, in what order, and what to check after.

Changing the timing belt on the Mitsubishi Outlander (CW) with the 6B31 3.0 MIVEC V6 is a long job, mostly because of what sits in the way. The ancillary belts, engine support and bracket, crankshaft pulley and timing covers all have to come off with the crank held by the locking tool. The new belt is fitted anti-clockwise with the belt marks matched to the sprocket marks and tension kept on the run, then the automatic tensioner is released. Setting it properly is the critical part: turn the crank as specified, pull the tensioner pin, rotate by 2 turns, wait 5 minutes and measure the tensioner. Never turn the engine backwards, and track the crankshaft pulley bolts, which can only be used 3 times.

107 steps 1 engine code

🧭 Before you start

Remove the power steering and alternator belts, the engine support and bracket, the crankshaft pulley and the timing covers. Align the crankshaft timing marks and remove the old belt. Fit the new belt anti-clockwise, matching the belt marks to the sprockets and keeping tension on it, then set the automatic tensioner, rotate the engine 2 turns, wait 5 minutes and measure. Recheck the marks, refit the bracket, pulley in stages, covers and ancillary belts, then the arch liner and engine covers.

Fits: platform codes 3.0, MIVEC

  • Timing position: the crankshaft or camshaft is set and locked during this job
  • Special tools named: locking tool, locking pin
  • Renewed: bolts

Don't miss

  • Never turn the engine opposite to its normal direction of rotation.
  • Align the belt marks with the sprocket marks and keep tension on the belt while fitting.
  • After 2 crank turns, wait 5 minutes before measuring the tensioner; adjust and repeat if out.
  • Mark the pulley bolts at every removal; they can only be used 3 times.
  • Check the belt for cracks, fraying and oil contamination; avoid bending or twisting it.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📋 Procedure

Preparation and removal

  1. Never turn the engine in the direction opposite to that of normal operation
  2. The bolts must be marked after every removal. Renew the bolts after:
  3. Crankshaft locking tool:
  4. Threads lightly oiled
  5. Check the belt(s) for cracks, fraying, wear and oil contamination
6B31? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove the power steering pump belt
  2. Note: Keep tension on the timing belt
  3. Check the timing marks
  4. Turn the crankshaft 90° anti-clockwise
  5. Use the special tool
  6. Turn the crankshaft clockwise
  7. Align the timing marks
  8. Remove the crankshaft pulley
  9. Note: The bolts can only be used 3 times
  10. Remove the engine support
  11. Remove the engine support bracket
  12. Align the crankshaft timing marks
  13. Note: Check the alignment
  14. Remove the timing belt
  15. Note: The bolts can only be used 3 times
  16. Note: Use a wrench to counterhold
  17. Threads lightly oiled
  18. Stage 1:
  19. Stage 2:
  20. Loosen the bolts
  21. Stage 3:
  22. Stage 4:
  23. Turn the tensioner anti-clockwise to release the tension
  24. Supporting its slack using a hexagonal wrench
  25. Release the tensioner
  26. Stage 3:

Installation and checks

  1. Note: Avoid bending, torsion or traction
  2. Refit the automatic tensioner
  3. Fit the timing belt in an anti-clockwise direction
  4. Align the timing marks on the timing belt with the marks on the gearwheels
  5. Remove the tensioner locking pin
  6. Rotate the crankshaft clockwise by 2 turns
  7. Wait for 5 minutes
  8. Measure the distance:
  9. If the tension is not set correctly, adjust the tensioner according to the instructions as above
  10. Check the timing marks again
  11. Refit the engine support bracket
  12. Refit the crankshaft pulley
  13. Refit the power steering pump drive belt
  14. Fit the tensioner bracket
  15. Tension the belt
  16. Fit the power steering tensioner
  17. Refit the alternator belt
  18. Refit the right wheel arch liner
  19. Refit the engine lower cover
  20. Refit the engine upper cover
  21. Reconnect the battery

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.