1 – bolt, 23–27 N·m + tighten further by 60–62° + tighten further by 60–62°; 2 – cylinder head; 3 – cylinder head gasket.
Removal
1. Drain the coolant and disconnect the upper radiator hose.
2. Remove the wide hose located between the air filter and the head cover.
3. Remove the air intake hose.
4. Remove the vacuum hose, fuel hose and coolant hose.
5. Remove the high-voltage wire caps from the spark plugs.
6. Remove the ignition coil.
7. Remove the air chamber.
8. Remove the intake manifold.
9. Remove the heat shield and exhaust manifold.
10. Remove the water pump pulley and crankshaft pulley.
11. Remove the timing belt cover.
12. Move the timing belt tensioner pulley toward the water pump and temporarily secure it in this position.
13. Remove the timing belt.
14. Remove the cylinder head cover.
15. Using special tool 09221-21000, unscrew the cylinder head mounting bolts in a specific sequence.
16. Remove any remaining cylinder head gasket from the cylinder block and cylinder head.
Warning: When removing gasket residue, be careful not to let it fall into the cylinder block passages.
Examination
1. Inspect the cylinder head for damage, cracks, oil and coolant leaks. Replace the cylinder head if necessary.
2. Remove carbon deposits from combustion chambers. Blow out lubrication channels with compressed air.
3. Use a metal ruler and feeler gauge in six directions to check the flatness of the cylinder head. If necessary, regrind the cylinder head.
Maximum regrinding: 0.08 mm
4. Replace or repair the cylinder head if the following defects are present:
- burnt valve seats;
- damage to the mating surface for installing the intake and exhaust manifolds;
- damage to the seats for installing oil sealing rings on the camshafts.
Installation
1. Clean the mating surfaces of the cylinder block and cylinder head.
2. Install a new cylinder head gasket onto the cylinder block.
3. Install the cylinder head bolts. Tighten the cylinder head bolts in the following order in a specific sequence:
- a. tighten the bolts to a torque of 23–27 N·m;
- b. tighten the bolts to an angle of 60–62°;
- c. tighten the bolts to an angle of 60–62°.
4. Move the timing belt tensioner pulley toward the water pump and temporarily secure it in this position.
5. Install the timing belt onto the camshaft pulley, making sure that the timing marks on the pulleys are aligned with the pointers.
6. Adjust the timing belt tension.
7. Install the cylinder head cover and secure with bolts, tightening them to the required torque.
Tightening torque: 8–10 Nm
8. Install the timing belt cover.
9. Install a new intake manifold gasket and intake manifold. Tighten the nuts and bolts to the specified torque.
Tightening torque: 15–20 Nm
10. Install a new exhaust manifold gasket and exhaust manifold. Tighten the nuts and bolts to the specified torque.
11. Install the air chamber and secure with bolts and nuts, tightening them to the required torque.
Tightening torque: 15–20 Nm
12. Install the ignition coil.
13. Install the air intake hose.
14. Connect the vacuum hose, fuel hose and coolant hose.
15. Install a wide hose.