- traces of oil on any surface of the belt;
- traces of wear on the toothed surface, cracks, cuts, folds and separation of the fabric from the rubber;
- cracks, folds, depressions or bulges on the outer surface of the belt;
- fraying or delamination on the end surfaces of the belt.
Warning: A belt with traces of motor oil on any of its surfaces must be replaced, as oil quickly destroys rubber. The reason for oil getting on the belt (usually due to a breach in the seals of the crankshaft and camshaft) must be eliminated immediately.
Note: Carry out work on an inspection pit, overpass or, if possible, on a lift.
You will need: keys "10", "14", "17", sliding pliers, Allen key "5".
1. Remove the accessory drive belt (see "Replacement of auxiliary drive belt").
2. Remove the air filter (see "Removal and installation the air filter housing and intake noise muffler").
3. Remove the right front wheel.
4. Set the piston of the 1st cylinder to the TDC position of the compression stroke (see "Setting the piston of the first cylinder to the TDC position of the compression stroke").
5. Remove the crankshaft pulley mounting bolt...
6. ...and remove the pulley.
Helpful Hint: The crankshaft pulley mounting bolt is tightened to a very high torque. To prevent the crankshaft from turning, engage V gear and press the brake pedal (an assistant should do this).
7. Place a secure support under the engine.
8. Remove two bolts and one nut securing the right engine mount bracket to the wing...
9. ...then unscrew the three bolts securing the right support to the bracket on the engine...
10. ...and remove the right engine mount.
11. Remove the three bolts securing the upper timing cover.
12. Remove the power steering pump hose from the retainers on the upper timing cover and set it aside.
13. Remove the upper timing cover by sliding it upward.
14. Unscrew the three bolts securing the lower timing cover and remove it.
15. Loosen the three water pump mounting bolts.
16. Turn the water pump housing counterclockwise to loosen the timing belt tension.
17. Remove the drive belt.
18. To replace the tension roller, unscrew the three bolts securing the bracket to the cylinder block...
19. ...and shoot the video.
20. Install the roller in the reverse order of removal.
21. Check the alignment of the timing marks on the crankshaft and camshafts (see "Setting the piston of the first cylinder to the TDC position of the compression stroke").
22. Put the belt on the toothed pulley of the crankshaft. Pull the leading branch of the belt and put it on the pulleys of the camshafts. Put the rear branch of the belt on the pulley of the water pump and put it behind the tension roller.
23. Adjust the tension of the timing belt by turning the water pump housing clockwise, monitoring the degree of belt tension using the tension roller indicators. In this case, the movable indicator of the tension roller will move counterclockwise towards the fixed indicator on the roller bracket. The belt is considered to be tensioned correctly if the indicators match. In this position, tighten the water pump mounting bolts.
24. Screw the pulley mounting bolt into the crankshaft tailstock...
25. ...and turn the crankshaft two turns using the bolt. Check that the timing marks on the crankshaft and camshafts match. If they do not match, reinstall the belt.
26. Check for leaks from under the water pump housing. Replace its sealing ring if necessary (see "Replacing the water pump").
27. Install all previously removed parts in the reverse order of removal.