- increased (compared to usual) noise when engaging the clutch;
- jerks when operating the clutch;
- incomplete clutch engagement (clutch "slips");
- incomplete disengagement of the clutch (the clutch "leads").
Note: If the clutch fails, we recommend replacing all of its components at the same time (driven and leading disks, as well as the clutch release bearing), since replacing the clutch is labor-intensive, and the service life of undamaged clutch components has already been reduced, and if they are reinstalled, the clutch may need to be replaced again after a relatively short mileage.
You will need: a 10 mm wrench (a socket head is more convenient), a mounting blade..
…a mandrel for centering the driven disk (can be made from the primary shaft of the gearbox by removing the gears).
You can use a commercially available mandrel for front-wheel drive VAZ vehicles.
1. Remove the gearbox (see "Removal and installation the gearbox").
2. If you are going to install the old pressure plate, mark in any way (e.g. with paint) the relative positions of the pressure plate housing and the flywheel in order to install the pressure plate in the same position (to maintain balance).
3. Holding the flywheel with a tire iron (or large screwdriver) to prevent it from turning, unscrew the six bolts securing the clutch pressure plate housing to the flywheel. Loosen the bolts evenly: each bolt by two turns of the wrench, moving from bolt to bolt by diameter.
Note: This is how the bolts that secure the clutch housing to the engine flywheel are located.
4. Remove the pressure and driven clutch discs from the flywheel, holding the driven disc.
5. Inspect the driven clutch disc. Cracks on the driven disc parts are not allowed.
6. Check the degree of wear of the friction linings. If the rivet heads are recessed less than 0.2 mm, the surface of the friction linings is oily or the riveted connections are loose, the driven disk must be replaced.
Note: If the driven disk linings are oily, check the condition of the gearbox input shaft seal. It may need to be replaced.
7. Check the reliability of fixation of the damper springs in the sockets of the driven disk hub by trying to move them in the sockets of the hub by hand. If the springs move easily in the sockets or are broken, replace the disk.
8. Check the runout of the driven disk if its warping is detected during visual inspection. If the runout exceeds 0.5 mm, replace the disk.
9. Inspect the working friction surfaces of the flywheel and pressure plate, paying attention to the absence of deep scratches, nicks, nicks, obvious signs of wear and overheating. Replace defective units.
10. If the riveted connections of the casing parts and the pressure plate become loose, replace the pressure plate assembly.
11. Assess the condition of the diaphragm spring of the pressure plate by visual inspection. The presence of cracks on the diaphragm spring is not allowed. The contact points of the spring petals with the clutch release bearing must be in the same plane and have no obvious signs of wear (wear should not exceed 0.8 mm). Otherwise, replace the pressure plate assembly.
12. Inspect the connecting links of the housing and the disc. If the links are deformed or broken, replace the pressure plate assembly.
13. Assess the condition of the pressure spring support rings on the outer and inner sides of the spring by visual inspection. The rings should not have cracks or signs of wear. Otherwise, replace the pressure plate assembly.
14. Before installing the clutch, check the ease of movement of the driven disk along the splines of the primary shaft of the gearbox. If necessary, eliminate the causes of jamming or replace defective parts.
15. Apply high-melting grease to the splines of the driven disk hub.
16. When installing the clutch, first install the driven disk using a mandrel, then install the pressure plate housing onto the three centering pins and screw in the housing mounting bolts to the flywheel.
Note: Please note that when installing the driven disc into the pressure plate housing, the protruding part of the hub must be directed towards the pressure spring.
17. Tighten the bolts evenly, one turn of the key each, moving from bolt to bolt in turn by diameter. The tightening torque of the bolts is specified in appendix 1.
18. Remove the mandrel and install the gearbox.
19. Check the operation of the clutch (see "Checking the Clutch Release Pedal Travel").
(The original source of this article can be found at fordbook.ru)