Removing
1. Remove the gearbox.
2. Remove the clutch.
3. Block the rotation of the flywheel with the lock.
4. Remove bolts 1 using wrench 6 (see fig.2.57).
Pic. 2.57. Flywheel:
1. Bolt,
2. Disk,
3. Guide pin,
4. Flywheel,
5. Torque converter disc,
6. Key.
5. Remove flywheel 4 (with manual transmission) or torque converter disc 5 and disc 2 (with automatic transmission). Guide pins 3 center flywheel 4 or disk 5. Flywheel 4 and torque converter disk 5 are balanced separately and can be replaced separately without balancing.
Installation
6. Installation is made in an order, the return to removal.
Checking and machining
7. Remove the flywheel.
8. Remove the guide pins.
9. Measure the basic dimensions a and b for processing. If the value b obtained is less than the allowable value, or if the required clutch surface margin A is greater than 1 mm, replace the flywheel. If surface A is processed, then surface B must also be processed (see fig.2.58). After machining, the bonding surface must show no hole shrinkage and/or vibrations. If the marks or cracks are deeper than allowable, replace the flywheel. Flywheel dimensions are shown in table 2.5.
Pic. 2.58. Checking and machining:
A. Adhesion surface,
B. Mounting surface,
a, b. gaps,
With. Installation depth of the guide pins.
Table 2.5. Flywheel dimensions
10. Check the flywheel radial runout, oblateness and height of the friction surface and mounting surface.
11. Installation is made in an order, the return to removal.
Flywheel ring gear replacement
12. Remove the flywheel.
13. Remove the ring gear.
14. Drill a hole on the surface of the ring gear and install a chisel or heat quickly and remove immediately (see fig.2.59). Check the diameter of the flywheel flange a under the ring gear.
Pic. 2.59. Replacing the flywheel ring gear: (page 112)
1. Flywheel ring gear,
2. Flywheel, "A". Flywheel flange diameter.
15. Before installation, wipe the mating surfaces of the flywheel and ring gear. Heat up the ring gear (no more than 220°С) and install on the flywheel. Check ring gear runout. Install the flywheel to the engine.
Flywheel flange diameter "A":
- on the ring gear - 275.000-275.052 mm;
- on the flywheel - 275.315-275.396 mm.
Permissible ring gear runout is 0.25 mm.