Figure 11.244. Rear clutch: 1 - Seal*; 2 - Drive shaft; 3 - Sealing ring; 4, 7 - Spring retaining rings; 5 - Rotating ring of thrust bearing; 6 - Seal; 8 - Jet Disc; 9 - Friction disc; 10 - Slave disk; 11 - Pressure plate; 12 - Shaft spring; 13 - Return spring; 14 - Rear clutch piston; 15 - Rear clutch bracket; 16, 17 - Oil scraper rings. The number of seals depends on the type of gearbox: model with a locking clutch - 3, model without a clutch - 1
Number of friction and driven discs
| Model | Friction disc | Slave disk | Jet Disc |
| F4A21 | 2 | 1 | 1 |
| F4A22, F4A23 | 3 | 2 | 1 |
Selecting a Snap Ring
Check the clearance between the snap ring and the reaction disc (Figure 11.245). To measure the clearance, press the disc over its entire diameter with a force of 50 N. If the clearance differs from the required value, select another snap ring.
Figure 11.245. Checking the clearance between the spring retaining ring and the reaction disk
Original source of information [MitsubishiMan.ru]
Nominal value: F4A21 - 0.3-0.5 mm; F4A22, F4A23 - 0.4-0.6 mm.