Removing
Disconnecting the speedometer gearbox
1. Put the car on stops above the inspection hole or on the flyover.
2. Disconnect the negative terminal from the battery.
3. Disconnect adjusting rod (roller).
4. Disconnect the exhaust system.
5. Disconnect the throttle control rod from the carburetor.
6. Unload the gearbox from below with a wooden stand.
7. Release the engine mounting pad in the area of the gearbox rear cover.
8. Disconnect the transverse engine support from the floor of the body.
9. Disconnect the bracket for mounting the exhaust system (noting the location of the washers).
10. Loosen the driveshaft mounting nuts.
11. Loosen the bolts of the intermediate bearing of the cardan shaft (do not twist).
12. Disconnect the cardan shaft from the gearbox, the gasket remains on the shaft.
13. Move the cardan shaft back as far as it will go.
14. Disconnect the speedometer gearbox and remove the shaft from the mounting bracket.
15. Remove the clutch slave cylinder, take it to the side together with the pipeline and fix it on the car so that it does not interfere.
16. Remove the starter.
17. Disconnect drafts from the mechanism of a gear change.
Attention! The mass of the gearbox is significant. Work with insurance and at least two people.
18. Turn away all bolts of fastening of a transmission (unscrew the two upper bolts last).
19. Slide the gearbox off the dowel pins in the axial direction.
20. Lower the gearbox down, making sure that the input shaft is out of the clutch disc.
Installation
The gearbox is installed in the reverse order.
1. Before installation, check the clutch.
2. Lubricate the drive shaft and centering pins with a light coat of molybdenum-based grease (like Liqui Moly).
3. Install the gearbox.
4. Check the condition of the flexible coupling of the cardan shaft for cracks, replace the damaged one.
5. Check the oil level in the gearbox.
6. Bleed the clutch actuator if necessary
7. Remove the car from stands.
8. Connect the negative terminal to the battery.