Cylinder head removal & torque: Opel (X25XE, Y26SE)

🧭 Before you start

Fits: platform codes 2.5, V6, |, 2.6

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

🔧 Engine codes this applies to

📋 Procedure

Preparation and removal

1. Before disconnecting the battery cable, check the audio system security code
2. Remove the air filter and the air inlet hose
3. Remove the reaction link together with its bracket
4. Crankshaft locking tool:
5. Remove the coolant pump pulley

6. Camshaft locking tool:
7. Remove the crankshaft pulley
8. Turn the crankshaft clockwise until just before TDC for cylinder 1
9. Tensioner pulley:
10. Turn the tensioner pulley anti-clockwise
11. Clamp the special tool around the coolant pump flange
12. Use a special tool to block the camshafts
13. Loosen the tensioner pulleys
14. Remove the timing belt

Installation and checks

15. Tensioner pulley:
16. Fit the timing belt in a clockwise direction
17. The tension is set at a deflection of:
18. Tighten the tensioner pulley mounting bolt
19. Right cylinder head:
20. Turn the tensioner pulley clockwise until the pointer is positioned as shown
21. Tighten the tensioner pulley mounting bolt
22. Remove all the locking tools
23. Hold the tensioner pulley in this position
24. Tighten the tensioner pulley mounting bolt
25. Right cylinder head:
26. Use the special tool to check the camshaft timing
27. Tensioner pulley:
28. Turn the tensioner pulley anti-clockwise
29. Until the camshaft gearwheel marks align with the marks on the special tool
30. Tighten the tensioner pulley mounting bolt
31. Remove the camshaft locking tool
32. Left cylinder head:
33. Use the special tool to check the camshaft timing
34. Tensioner pulley:
35. Turn the tensioner pulley anti-clockwise
36. Until the camshaft gearwheel marks align with the marks on the special tool
37. Tighten the tensioner pulley mounting bolt
38. Remove the camshaft locking tool
39. Tensioner pulley:
40. Turn the tensioner pulley anti-clockwise to its stop
41. Turn the tensioner pulley clockwise until the pointer is positioned as shown
42. The tension is set if the marks are aligned
43. Tighten the tensioner pulley mounting bolt
44. Remove all the locking tools
45. Turn the engine 2 rotations clockwise
46. Check the timing marks again
47. Repeat the procedure if required
48. Fit the crankshaft pulley
49. Further refitting is in the reverse order of removal

Other OPEL / VAUXHALL procedures

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