General information
The flywheel is made of steel and is equipped with a toothed rim. It is fastened to the crankshaft flange with six M10x1 bolts with TORX heads. The flywheel is designed for installation of a clutch assembly with a diameter of 190 mm. The bolt holes are located asymmetrically, which determines the uniqueness of the fit of the flywheel, the balancing of which is carried out in assembly with the crankshaft. The threaded part of the bolts is lubricated with a fixing sealant such as Loctite 574 or Loctite 270 during assembly.
When installing the ring gear on the flywheel, the latter must be heated to a temperature of 400°C.
Removal
1. Remove the gearbox (see Chapter Transmission) and clutch assembly (see Chapter Clutch).
2. Using a retainer made from a thick metal plate (see accompanying illustration) jam the flywheel ring gear, blocking the latter from turning while loosening its mounting bolts. Alternatively, the flywheel can be blocked using a metal plate bolted between it and the clutch dome. To avoid imbalance during assembly, mark the position of the flywheel relative to the end face of the crankshaft journal
3. Remove the mounting bolts and, with the help of an assistant, remove the heavy flywheel.
Examination
1. Check the condition of the flywheel surface mating with the clutch disc. If deep scratches, cracks, scoring and other mechanical damage are detected, the flywheel must be replaced or given a turning (consult with car service specialists).
2. Carefully inspect the flywheel ring gear. If the teeth are worn or missing, the ring gear should be replaced at a car service workshop.
Installation
1. Carefully clean the mating surfaces of the flywheel and crankshaft journal. Using a tap, run the threaded holes in the end of the crankshaft journal, removing any remaining sealant and corrosion products from them.
Data Copied from the portal: www.skodabook.ru
Note: If you do not have a suitable tap handy, the holes can be cleaned using an old bolt with the threaded part sawn off lengthwise, similar to the one described in Section Replacing crankshaft seals (but with a head).
2. If new mounting bolts are not coated with a locking compound at the factory, lightly lubricate their threads with a suitable sealant.
3. Install the flywheel on the crankshaft journal in accordance with the mounting marks applied during dismantling.
Note: The new flywheel can be installed in any position. Install the bolts and tighten them finger tight for now.
4. Using one of the methods suggested above, lock the flywheel from turning, then tighten the mounting bolts to the required force.
5. Install the clutch and gearbox assemblies in place (see Chapters Clutch and Transmission).