Removal
1. Remove the battery.
2. Remove the windshield wiper arms and reflector panel.
3. Remove the intake manifold.
4. Drain the coolant and remove the spark plugs.
5. Disconnect the wires from the coolant temperature indicator sensor and the engine management system coolant temperature sensor (indicated by arrows).
6. Disconnect the coolant hoses from the outlet pipe (indicated by arrows).
7. Remove the bolts and disconnect the outlet pipe and sealing washers (indicated by arrows).
8. Remove the timing belt.
9. Remove the camshaft sprockets, tensioner pulley bracket, upper idler pulley and lower pulley.
10. Remove the water pump.
11. Remove the rear timing belt cover.
Left cylinder head
12. Remove the head cover.
13. Disconnect the wires of both heads from the DIS module and remove the module. Unscrew the ground wires from the left head.
14. Remove the cover from the relay box in the left corner of the engine compartment and disconnect the wires from the engine control unit.
15. Disconnect the fuel injection system relay.
16. Disconnect the connector plug.
17. Disconnect the wiring harness from the relay box.
18. Disconnect the wiring harness connectors located behind the battery.
19. If the engine wire harness is connected to the fuse block, remove the block.
20. Disconnect the harness from the block.
21. Once you have disconnected all the wires, position the wire harness away from the cylinder head.
22. Remove the left front engine exhaust pipe.
23. Remove the power steering pump.
24. Disconnect the upper radiator hose from the pipe located at the front of the left head.
25. Remove the bolt securing the coolant pipe and the eye for lifting the engine to the head.
26. Disconnect the eyelet and tube from the thermostat housing.
27. Remove the oil dipstick and dipstick tube from the cylinder block.
28. Remove the exhaust camshaft.
29. Unscrew the head bolts in the reverse tightening sequence (see figure Cylinder Head Bolt Tightening Sequence).
30. Remove the cylinder head.
31. Remove the head gasket.
Right cylinder head
32. Remove the oil filter. Replace it if necessary.
33. Twist the nuts (indicated by arrows), securing the oil cooler tubes to the cylinder block.
34. Remove the bolts securing the tubes to the oil cooler and remove the sealing washers (indicated by arrows) and disconnect the pipes from the oil radiator.
35. Disconnect the lower engine radiator hose and the expansion tank hose.
36. Disconnect the heater hose (indicated by the arrow) from the coolant pipe located on the right side of the engine.
37. Unscrew the bolts and remove the tube. Remove the sealing ring.
38. Remove the front right exhaust pipe.
39. Remove the exhaust camshaft.
40. Remove the right cylinder head.
Preparing for installation
1. Thoroughly clean the mating surfaces of the head and cylinder block. Clean the water and oil passages in the head. Clean the piston heads from carbon deposits.
2. Inspect the mating surfaces for deep scratches, dents, and other damage. Small scratches can be sanded down with sandpaper, but severe damage should be machined.
3. Check that the surface on which the gasket is installed is not deformed.
4. Clean the threads of the cylinder head bolts. Have new bolts ready.
Installation
Left cylinder head
1. Check that the crankshaft is still turned approximately 60° backwards.
2. Install the head gasket onto the dowel pins (indicated by arrows).
3. Make sure the mark on the gasket is facing up.
4. Install the head.
5. Lubricate the threads of the new head bolts with oil and insert the bolts.
6. Tighten the head bolts in the specified sequence (see figure Cylinder Head Bolt Tightening Sequence).
7. Tighten the head bolts to the specified torque.
8. Tighten the head bolts to the required angle.
9. Install the remaining parts.
Right cylinder head
10. The installation of the right cylinder head is carried out in the same way as the installation of the left head.
Visitor comments