Timing belt replacement: Peugeot 307 (TU5JP4)

🧭 Before you start

Lock the flywheel, remove the front right wheel and splash guard, the ancillary drive belt, the engine support with the engine on a hoist, and the lower and upper timing covers. Set the crankshaft to TDC for cylinder 1, fit the flywheel and camshaft locking pins, loosen the tensioner pulley while holding it with an Allen key and take the belt off. Fit the new belt, pre-tension it, turn the tensioner anti-clockwise to maximum and then clockwise to align the marks, tighten the nut, remove the locking pins and check the tensioner position, repeating if the marks are outside the area. Refit the locking tools to confirm the timing, remove them, then refit covers, pulley, belt, support, splash guard, wheel and battery.

Fits: platform codes 1.6, 16V, |, BIOFLEX, CC

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

Don't miss

• A removed timing belt is always replaced; never refit the old one.
• Crankshaft at TDC for cylinder 1, flywheel pin and camshaft pins in before the belt comes off.
• Hold the tensioner pulley with an Allen key while loosening and tightening its nut.
• Tensioner marks must sit inside the specified area; if not, repeat the tensioning.
• Locking tools must drop in freely on the timing check; if they do not, start again.
• Remove every locking pin before turning the engine or reconnecting the battery.

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

🔧 Engine codes this applies to

📐 21 workshop diagrams for TU5JP4(N6A)

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

Preparation and removal

1. Always fit a new timing belt after removal
2. Flywheel locking tool:
3. Remove the front right wheel
4. Remove the ancillary drive belt
5. Remove the engine support

6. Remove the timing belt lower cover
7. Remove the timing belt upper cover
8. Remove the clamp
9. Turn the crankshaft to TDC for cylinder 1
10. Remove the tensioner locking pin
11. Remove the flywheel locking pin
12. Remove the timing belt
13. Lock the crankshaft by fitting a locking pin into the flywheel

Installation and checks

14. Pre-tension the timing belt
15. Turn the tensioner anti-clockwise to the maximum timing belt tension
16. Fit the camshaft locking pins
17. Loosen the tensioner pulley, keeping it steady with an Allen key
18. Turn the tensioner clockwise to align both marks
19. Tighten the tensioner pulley nut
20. Check the position of the tensioner
21. Note: Repeat the procedure if the marks are outside the specified area
22. Refit the locking tools to check the timing
23. Note: Repeat the procedure if the special tools do not fit properly
24. Remove all the locking pins
25. Refit the timing covers
26. Fit the crankshaft pulley
27. Fit the ancillary drive belt
28. Refit the engine support
29. Remove the hoist
30. Refit the front splash guard
31. Refit the front right wheel
32. Reconnect the battery

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