1. Remove the fuel pump power fuse.
2. Start the engine.
3. After the engine has stopped, start it again and let it run for approximately 10 seconds to use up the fuel contained in the fuel manifold to reduce residual fuel pressure in the system.
4 Disconnect the ground terminal of the electronic engine control unit (ECM) from the intake manifold.
5. Drain the engine coolant.
6. Disconnect the supply air temperature sensor connector (IAT).
7. Disconnect the crankcase ventilation hose from the valve cover.
8. Disconnect the air duct from the throttle body.
9 Disconnect the ignition coil connector.
10. Disconnect the coolant temperature sensor connector (CTS) (see fig. T250 2.008)
11. Disconnect the idle speed control connector (IAC) (see fig. T250 2.009)
12. Disconnect throttle position sensor connector (TR).
13. Remove the camshaft position sensor (SMR)
14. Turn away screws of the case of the air filter.
15. Remove the air filter housing.
16. Remove the screws from the top of the timing case.
17. Remove the top part of the timing case.
18. Align the ignition timing mark on the camshaft sprocket with the mark on the rear timing belt cover.
19. Remove the right forward wheel.
20. Remove the mudguard of the right front wheel.
21. Remove the accessory drive belt.
22. Disconnect the fuel supply line from the fuel manifold.
23. Remove a nut of fastening of an arm of a tube of the amplifier of a steering.
24. Turn away a nut of the generator.
25. Remove a nut of fastening of an arm of the generator.
26. Remove the generator bracket.
27. Disconnect the vacuum brake booster hose at the intake manifold.
28. Disconnect any vacuum hoses that need to be disconnected and the electrical connector.
29. Disconnect the intake manifold absolute pressure sensor connector (IDA).
30. Remove the screw securing the crankshaft pulley.
31. Remove the crankshaft pulley.
32. Remove the screws from the bottom of the timing case.
33. Remove the lower part of the timing cover.
34. Slightly loosen the coolant pump mounting screws.
35. Loosen the timing belt tension by turning the coolant pump.
36. Remove the toothed belt.
37. Disconnect the crankcase ventilation tube from the camshaft housing.
38. Remove the valve cover with gasket.
Caution: Avoid scratches, nicks or other damage to the camshaft.
39. Remove the camshaft sprocket.
40. Remove the screws on the rear top of the timing case.
41. Disconnect the ignition wires from the spark plugs.
42. Disconnect the catalyst flange from the exhaust manifold flange.
43. Disconnect the oxygen sensor electrical connector.
44. Disconnect the heater pressure hose from the coolant distributor.
45. Disconnect the coolant hose connecting the expansion tank and throttle body.
46. Remove the front engine mount bolts.
47. Disconnect the accelerator cable from the throttle body and intake manifold.
48. Gradually loosen all screws securing the cylinder head in the sequence shown in the figure.
49. Remove the cylinder head screws.
50. Carefully remove the camshaft housing.
Attention: when removing the cylinder head, do not allow engine oil or coolant to enter the cylinders. Otherwise, engine damage may result.
51. Remove the cylinder head with the intake and exhaust manifolds installed on it.
52. Remove the cylinder head gasket.