Contents: Removal the cylinder head ⤓ Installing the cylinder head gasket ⤓ Installing a high pressure fuel hose ⤓ Installing camshaft sprockets ⤓
Removal the cylinder head
Loosen the bolts in 2 or 3 steps in the sequence shown in the figure, and then remove the cylinder head assembly.
Caution: When loosening the cylinder head bolts, be careful not to damage or deform the spark plug guide tubes, as they are not supplied separately.
Installing the cylinder head gasket
Using a special scraper, remove the remains of the old cylinder head gasket from the cylinder block.
Caution: When performing this operation, do not allow gasket material or other foreign particles to enter the cooling system and lubrication system channels.
Degrease the mating surfaces of the gasket.
When installing, check that all holes on the gasket and cylinder head match.
Make sure the new cylinder head gasket has the correct identification mark for this engine.
Place the cylinder head gasket on the cylinder block with the identification mark facing up so that it is located on the exhaust valve side.
When installing the cylinder head bolts, make sure that the length "A" of each bolt is within the specified value.
If the length "A" exceeds the maximum permissible value, the bolts must be replaced.
Maximum permissible value "A": 99.4 mm.
Apply a thin layer of engine oil to the threads and washers of the cylinder head bolts.
Note: If the cylinder head bolt washer has been replaced, install it with the chamfered side facing up as shown in the illustration.
 |  |
Tighten the bolts according to the procedure below.
Note: Always tighten the bolt at an angle exactly equal to 90°. Otherwise, the cylinder head mounting bolt may become loose (the reliability of the gas joint will not be ensured).
Note: If the bolt is turned to an angle greater than 90°, it is necessary to completely loosen it and repeat all operations, starting from point 1.
 |  |
Installing a high pressure fuel hose
Lubricate the O-ring with a small amount of fresh engine oil.
Caution! Do not allow oil to enter the fuel manifold.
While slightly turning the flange of the fuel hose to the right and left, carefully insert it into the fuel manifold to avoid damaging the gasket. After installation, check that the hose rotates smoothly in the fuel manifold.
If the hose flange sticks when turning, the cause may be damage to the O-ring seal. Disconnect the flange (assembled with the hose) from the fuel
manifold and check the gasket for damage, then reinsert it and check for smooth rotation.
Installing camshaft sprockets
Secure the camshaft sprockets from turning using a special fork holder and special bolts.
Tighten the camshaft sprocket mounting bolts to the specified torque.
Tightening torque: 89 ±9 Nm.
Install the coolant inlet pipe and thermostat housing assembly.
Install the upper timing belt cover.
Install the exhaust manifold.
Install the air filter assembly.
Fill with coolant and engine oil.
Adjust the tension of the attachment drive belt.
Adjust the accelerator pedal cable.