Place the engine on the assembly and disassembly stand.
Drain the engine oil. Loosen the water pump pulley bolts (1) by blocking the water pump pulley with a screwdriver.
Remove the accessory drive belt.
Remove the ignition coil wiring harness and the cylinder head cover.
Turn the crankshaft clockwise until the mark (2) is aligned (not painted) crankshaft pulley and marks (3) on the timing belt cover.
Make sure that the camshaft phase adjuster (4) and exhaust camshaft sprocket (5) marks are positioned as shown in the figure.
Otherwise, rotate the crankshaft one more revolution until the unpainted mark on the crankshaft pulley aligns with the mark on the timing cover.
Install the engine flywheel locking device (Mot. 1431) (6).
Remove:
- crankshaft pulley;
- crankshaft oil seal on the timing drive side.
Remove:
- water pump pulley mounting bolts;
- water pump pulley.
Loosen the bolts (7) securing the timing belt cover.
Remove the timing belt cover using a flat-blade screwdriver (8).
Remove the timing belt cover using the crankcase separator with silicone seals (Mot. 1716) (9) and a mallet.
Remove the timing belt cover.
Removal the timing belt drive target
Lower the timing chain tensioner lever (10) fully using a 2.5 mm Allen key (11) to release the tensioner plunger.
Press the timing chain tensioner until the timing chain tensioner plunger (12) is completely pressed out.
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Remove the 2.5mm Allen key from the timing chain tensioner.
Loosen the timing chain tensioner until the tensioner lever aligns with the hole in the tensioner housing.
Insert a 2.5mm Allen key into the tensioner housing hole to lock the tensioner arm in the locked position.
Remove:
- timing chain tensioner mounting bolts (13);
- timing chain tensioner, preventing it from being unlocked.
Remove:
- timing chain damper (14) with its rod;
- bolts (15) for fastening the side guide of the timing chain drive;
- side guide of the timing chain.
Note: Tooth (16) is located 7 teeth from the camshaft phase regulator mark (17).
Press (18) on the intake camshaft with a flat wrench and align the tooth (16) of the camshaft phase adjuster with the axis of the hole (19) on the cylinder head to facilitate removal of the timing chain.
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Remove the timing chain (20), starting from the crankshaft toothed pulley.
Clean:
- cylinder head;
- cylinder block;
- cylinder block amplifier;
- timing belt cover.
Remove any residue with a plastic spatula.
Finish cleaning the mating surfaces with a mating wheel.
Be sure to replace:
- chain tensioner;
- timing chain damper;
- side chain guide.
Make sure that the tooth (16) of the camshaft phase regulator is aligned with the axis of the hole (19) on the cylinder head.
Make sure the crankshaft mark (21) is vertically facing downwards.
Setting the Timing Drive Target
Install the new timing chain starting at the camshaft phase adjuster and aligning the painted links (22) of the timing chain with the marks (23) on the intake camshaft phase adjuster (24), exhaust camshaft sprocket and (25) on the crankshaft sprocket.
Install:
- side guide of the new timing chain;
- new timing chain damper;
- tensioner of the new timing chain.
Unlock the timing chain tensioner.
Remove the flywheel locking tool (Mot. 1431).
Turn the crankshaft two revolutions clockwise (if you look from the timing drive side). Make sure that the marks (26) on the camshaft phase adjuster and the exhaust camshaft toothed pulley are pointing vertically upwards.
Apply beads of silicone sealant gasket in the area (27) with a diameter of 3-4 mm.
Apply beads of silicone sealant gasket in area (28) with a diameter of 3-4 mm to the mating surface of the timing cover, installed at a distance (A) of 1-2 mm from the inner edge of the timing cover.
Install the timing belt cover. Tighten to the specified torque in the following order:
- m8 bolts #6, 7, 13, and 12 on the timing belt cover (pre-tightening) 8 Nm;
- m10 bolts No.1, 2, 3, 4 and 5 on the timing belt cover 55 Nm;
- m8 bolts No.6, 7, 8, 9, 10, 11, 12, 13 and 14 on the timing belt cover 25 Nm.
Use a plastic spatula to remove excess silicone sealant gasket at three points (cylinder head / timing cover / cylinder head cover).
Install all previously removed parts in reverse order.