TorqFix

Timing belt replacement: Peugeot 406 EW10J4 (EW7J4)

Step-by-step timing belt replacement for the Peugeot 406 EW10J4 (EW7J4): 71 steps. What to remove, in what order, and what to check after.

This is the timing belt job for the Peugeot 406 1.8 16V with the EW7J4 (6FZ) engine, a semi-automatic tensioner layout that is set with the engine cold. With the radio code noted, the drive belt, engine cover, right-hand engine support and crankshaft pulley come off, and the crankshaft and camshafts are pinned. The tensioner pulley is turned to maximum tension with a hex wrench and set against the pin, then the engine is rotated ten turns and the pins checked again. The two points that decide the job are that the engine is cold for tension setting, and that the crankshaft gearwheel bolt is tightened to the stages that match its washer type, gold steel or metallic sintered.

71 steps 1 engine code

🧭 Before you start

Note the radio code, support the engine and remove the drive belt, cover, right engine support and crankshaft pulley. Pin the crankshaft and camshafts, fit a new belt and turn the tensioner to maximum before backing it onto the pin and tightening it. Remove the pins, rotate the crankshaft clockwise ten turns, refit the pins and check the camshaft positions. Tighten the crankshaft gearwheel bolt in stages for its washer type and refit the rest in reverse.

Fits: platform codes 1.8, 16V

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

Don't miss

  • Set belt tension only on a cold engine.
  • Always fit a new timing belt once the old one is off.
  • If the tensioner marker does not reach the indicated position, renew the tensioner pulley.
  • Crankshaft bolt stages differ for gold steel and metallic sintered washers; identify yours first.
  • Recheck the camshaft pin positions after ten clockwise crankshaft turns.

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

🔧 Engine codes this applies to

EW7J4(6FZ)

📋 Procedure

Preparation and removal

  1. Note: Be aware of security codes on radios
  2. Always fit a new timing belt after removal
  3. Note: The engine must be cold before timing belt adjustment
  4. Remove the ancillary drive belt
  5. Remove the engine cover
EW7J4(6FZ)? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Check the belt(s) for cracks, fraying, wear and oil contamination
  2. Use a hexagonal wrench
  3. If the crankshaft locking pin does not fit, refer to procedure at installation
  4. Fit the pin
  5. Crankshaft pulley
  6. Remove the crankshaft pulley
  7. Engine support:
  8. Remove the right-hand engine support
  9. Remove the locking pins
  10. Fit the crankshaft locking pin
  11. Remove the tensioner pulley
  12. Loosen the centre bolt of the crankshaft gearwheel/vibration damper
  13. Use a special tool to lock the crankshaft
  14. Position the crankshaft pulley flange at timing point, so the crankshaft locking pin can be fitted

Installation and checks

  1. Turn the tensioner to the maximum timing belt tension
  2. Note: If the tensioner marker does not reach the position shown (arrow), the tensioner pulley must be renewed
  3. Turn the tensioner clockwise until there is slight contact with the pin
  4. Tighten the tensioner
  5. Rotate the crankshaft clockwise by 10 turns
  6. Check the position of the pins in the camshaft gearwheels
  7. Tighten the crankshaft gearwheel bolt
  8. Steel washer (coloured gold):
  9. Stage 1:
  10. Stage 2:
  11. Sintered washer (coloured metallic):
  12. Stage 1:
  13. Stage 2:
  14. Refit all other parts in the reverse order of removal

Other PEUGEOT procedures

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.

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Workshop data on this page last updated 20 Sep 2026.