Removing
Disconnect the wire from the negative battery terminal.
Attention! When the cable is disconnected from the negative battery terminal, the memory of electronic storage devices, such as the radio code, is erased.
Raise the car and remove the right front wheel.
Remove the lower engine cover in the right wheel arch.
Pic. 4.12. Location of RF-N engine belts: 1 - bypass roller; 2 – the left and right casings of a gear belt; 3 - crankshaft pulley; 4 - V-belt; 5 - side casing of the engine; 6 - bypass roller of the V-belt; 7 - toothed belt; 8 - tension roller with spring
Remove V-belt (pic. 4.12).
Set the piston of the first cylinder to TDC on the compression stroke. To do this, check
Pic. 4.13. Combination of marks on the toothed belt pulleys when installing the piston of the first cylinder at TDC in the compression stroke
engine crankshaft until the mark on the crankshaft pulley aligns with the mark on the front cover of the cylinder block (pic. 4.13).
Fix the engine crankshaft from turning and unscrew the crankshaft belt pulley bolts.
To block the engine, engage 5th gear, and the assistant must press the brake pedal.
Remove the crankshaft pulley.
Turn out bolts and remove the right and left casings of a gear belt.
Remove the engine mount.
Remove glow plugs. To crank the engine, apply the parking brake and place the transmission lever in neutral. Turn the crankshaft from the side of the right wheel arch using a wrench and socket.
Attention! Never turn the crankshaft by the camshaft pulley through the belt drive.
Chalk, marker or paint mark the direction of rotation of the toothed belt. If the toothed belt rotates in the opposite direction during installation, it will collapse. The motor pulleys rotate clockwise.
Pic. 4.14. Loosening the bolt and retracting the tension roller from the toothed belt
Loosen the tensioner bolt and move the tensioner away from the timing belt (pic. 4.14). After loosening the tension of the toothed belt, tighten the tension roller mounting bolt again.
Unscrew the bypass roller.
Remove the toothed belt. After removing the toothed belt, do not rotate the pulleys.
Attention! Before removing the toothed belt, check again that the mark on the camshaft pulley matches the edge of the cylinder head, and if necessary, correct the position of the pulleys.
Attention! If it is necessary to rotate the camshaft with the toothed belt removed, no piston must be at TDC, otherwise the pistons and valves may be seriously damaged.
If it is necessary to rotate the camshaft, first install all the pistons in the middle of their stroke. To do this, put a mark with chalk on top of the crankshaft pulley, while the crankshaft should be in the TDC position of the first cylinder, then turn the crankshaft pulley 1/4 turn (90°) left or right. Now the label should be directed respectively to the left or to the right.
Attention! Do not kink or twist the toothed belt. Be sure to replace dirty, damaged or worn belts. Check up uniformity and ease of rotation of a tension roller.
Installation
Make sure that the mark on the crankshaft pulley matches the mark on the front cover of the cylinder block, and the mark on the camshaft pulley matches the mark on the rear toothed belt cover. If necessary, turn the pulleys until all marks are aligned.
Install the toothed belt onto the pulleys. Lay the old belt in accordance with the previously applied arrow indicating the direction of rotation of the belt.
Install the bypass roller and secure with a bolt, tightening it with a torque of 50 Nm.
Attention! Make sure the belt fits the pulleys well and does not sag.
Belt tension adjustment
Loosen the tensioner pulley mounting bolt so that the pulley can move against the toothed belt under spring force. Rotate the crankshaft two turns clockwise until the camshaft mark is aligned with the mark on the rear toothed belt guard. Check again that all labels match.
Tighten the tension roller mounting bolt to 50 Nm.
Turn the crankshaft two turns in the direction of engine rotation and recheck the alignment of the marks.
Pic. 4.15. Place for checking the deflection of the toothed belt of the RF-N engine
The branch of the toothed belt between the pulleys of the high pressure fuel pump and the camshaft must bend by 9.0–11.0 mm when the belt is pressed with a force of 10 kgf (strong finger pressure) (pic. 4.15). Otherwise, loosen the idler pulley mounting bolt and adjust the belt tension again.
Install and bolt the right and left toothed belt guards by tightening the bolts to 10 Nm.
Pic. 4.16. Bolt and nut location of RF-N upper engine mount
Install the upper engine mount and tighten the bolt to 115 Nm and the nut to 90 Nm (pic. 4.16).
Block the engine crankshaft from turning, screw in the crankshaft belt pulley bolts and tighten them to 30 Nm. To block the engine, engage 5th gear, and the assistant must press the brake pedal.
Screw in glow plugs.
Install and tension the V-belt.
Establish a casing in the right wheel arch.
Connect the wire to the negative battery terminal.
If you have a clock, set the time and enter the radio's security code.