Corsa B X12XE — OPEL / VAUXHALL

🧭 Before you start

Fits: platform codes 1.2I, 16V

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

🔧 Engine codes this applies to

📋 Procedure

Preparation and removal

1. Before disconnecting the battery cable, check the audio system security code
2. Further refitting is in the reverse order of removal
3. Drain the cooling system
4. Remove the water hoses from the expansion tank
5. Disconnect the radiator hoses

6. Disconnect the heater hoses from the coolant pump
7. Disconnect the oil pressure sensor plug
8. Disconnect the camshaft sensor
9. Remove the throttle body
10. Remove the expansion tank with the bracket
11. Disconnect the engine control unit
12. Disconnect the tank vent valve wiring
13. Remove the bracket
14. Remove the lifting eyes
15. Dipstick tube:
16. Remove the dipstick tube
17. Remove the exhaust manifold heat shield
18. Check that the special tools fit
19. Remove the inlet manifold bracket
20. Disconnect the crankcase breather hose from the valve cover
21. Remove both spark plug covers
22. Remove the ignition module
23. Use a special tool:
24. Valve cover:
25. Remove the valve cover
26. Turn the crankshaft to TDC for cylinder 1
27. Remove the ancillary drive belt
28. Remove the coolant pump
29. Remove the timing chain cover
30. Remove the camshaft sensor
31. Remove the chain guide(s)
32. Remove the camshaft gearwheels
33. Remove the cylinder head bolts
34. Remove the cylinder head

Installation and checks

35. Tighten the cylinder head bolts
36. Fit the coolant pump
37. Fit the camshaft sensor
38. Tighten the camshaft gearwheels
39. Remove the special tools
40. Align the crankshaft timing marks
41. Use a special tool to lock the crankshaft
42. Align the camshaft timing marks
43. Use a special tool to block the camshafts
44. Lock the tensioner; use a locking pin
45. Remove the camshaft locking tool
46. Remove the tensioner locking tool

Other OPEL / VAUXHALL procedures

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• Astra G Clutch
• Opel Corsa C 1.2 CDTI timing chain replacement
• Opel Astra G 2.2 DTI Y22DTR timing chain replacement
• Opel VectraC, Signum 2.8 Z28NEL timing chain replacement
• Opel Astra G 2003 2.0 DTI Y20DTH timing chain replacement
• Opel Astra G X Y 20DTL 2.0 DTI X20DTL timing chain replacement