Rear axle and gearbox of cars VAZ-2121
Rear axle device
The rear axle structure is shown in Fig. 3-57. Fig. 3-57. Rear axle: 1 - decorative cap; 2 - brake drum and wheel mounting bolt; 3 - axle shaft bearing oil deflector; 4 - brake...
The rear axle structure is shown in Fig. 3-57. Fig. 3-57. Rear axle: 1 - decorative cap; 2 - brake drum and wheel mounting bolt; 3 - axle shaft bearing oil deflector; 4 - brake...
Possible malfunctions of the rear axle, their causes and methods of elimination
Increased noise from the rear wheels Constantly increased noise when operating the rear axle Noise when accelerating a car Noise when braking a car with the engine Noise when...
Increased noise from the rear wheels Constantly increased noise when operating the rear axle Noise when accelerating a car Noise when braking a car with the engine Noise when...
Removal and installation the rear axle
Removal and installation of the rear axle beam are described in the chapter " Rear suspension ". To remove the rear axle, it is sufficient to disconnect the suspension rods and...
Removal and installation of the rear axle beam are described in the chapter " Rear suspension ". To remove the rear axle, it is sufficient to disconnect the suspension rods and...
Disassembly and assembly of the rear axle
Disassembly Remove the brake system pipe with tee from the bridge, disconnecting the ends of the pipes from the brake wheel cylinders. Place the bridge on a repair stand and drain...
Disassembly Remove the brake system pipe with tee from the bridge, disconnecting the ends of the pipes from the brake wheel cylinders. Place the bridge on a repair stand and drain...
Checking the rear axle beam
Carefully check the technical condition of the beam, especially when repairing a car that has suffered an accident. A deformed beam can cause rear axle noise and accelerated tire...
Carefully check the technical condition of the beam, especially when repairing a car that has suffered an accident. A deformed beam can cause rear axle noise and accelerated tire...
Rear axle beam straightening
Attach flanges A.70172 to each end of the beam (used for straightening, not for checking beams) and install it on the supports of the hydraulic press so that the ends of the...
Attach flanges A.70172 to each end of the beam (used for straightening, not for checking beams) and install it on the supports of the hydraulic press so that the ends of the...
Half shafts — removal and installation
Remove the wheel and brake drum. After unscrewing the nuts securing the brake shield to the axle beam, use the ejector 67.7823.9516, holding the brake shield, to remove the axle...
Remove the wheel and brake drum. After unscrewing the nuts securing the brake shield to the axle beam, use the ejector 67.7823.9516, holding the brake shield, to remove the axle...
Half shafts — technical condition check
Check the technical condition of the parts included in the axle shaft kit and make sure that: the ball bearing is not worn or damaged; if the axial clearance in it exceeds 0.7 mm,...
Check the technical condition of the parts included in the axle shaft kit and make sure that: the ball bearing is not worn or damaged; if the axial clearance in it exceeds 0.7 mm,...
Half shafts — removing the locking ring
The axle bearing retaining ring must be removed and installed using a hydraulic press only. Pre-bend the holders 39 outwards ( fig. 3-57 ) bolts securing plate 38 with the oil...
The axle bearing retaining ring must be removed and installed using a hydraulic press only. Pre-bend the holders 39 outwards ( fig. 3-57 ) bolts securing plate 38 with the oil...
Assembly of the axle shaft
Place the axle shaft vertically, resting its flange on wheel 7 (Fig. 3-65) of tool 67.7823.9530. Fig. 3-65. Pressing in the axle shaft bearing retaining ring: 1 - mandrel; 2 -...
Place the axle shaft vertically, resting its flange on wheel 7 (Fig. 3-65) of tool 67.7823.9530. Fig. 3-65. Pressing in the axle shaft bearing retaining ring: 1 - mandrel; 2 -...
Measuring the axial free play of the axle shaft on a vehicle
Loosen the rear wheel nuts. Place chocks under the front wheels and remove the rear axle. Release the parking brake and set the gearshift lever to neutral. Remove the wheels and...
Loosen the rear wheel nuts. Place chocks under the front wheels and remove the rear axle. Release the parking brake and set the gearshift lever to neutral. Remove the wheels and...
Rear axle gearbox device
The rear axle gearbox assembly is shown in Fig. 3-68. Fig. 3-68. Rear axle gearbox: 1 - drive gear; 2 - driven gear; 3 - satellite; 4 - axle gear; 5 - satellite axis; 6 -...
The rear axle gearbox assembly is shown in Fig. 3-68. Fig. 3-68. Rear axle gearbox: 1 - drive gear; 2 - driven gear; 3 - satellite; 4 - axle gear; 5 - satellite axis; 6 -...
Determining gearbox faults by noise
Troubleshoot in the following order: Test #1 To clearly determine the nature of the noise, drive the car on the highway at a speed of approximately 20 km/h. Then gradually...
Troubleshoot in the following order: Test #1 To clearly determine the nature of the noise, drive the car on the highway at a speed of approximately 20 km/h. Then gradually...
Removal and installation the gearbox
Removal If it is necessary to remove only one gearbox: drain the oil from the bridge beam; raise the rear of the car, place it on stands and remove the wheels and brake drums;...
Removal If it is necessary to remove only one gearbox: drain the oil from the bridge beam; raise the rear of the car, place it on stands and remove the wheels and brake drums;...
Disassembling the gearbox
Secure the gearbox to the stand. Remove the locking plates 9 ( fig. 3-68 ), unscrew bolts 7 and remove covers 8 of the differential box bearings, adjusting nuts 10 and outer rings...
Secure the gearbox to the stand. Remove the locking plates 9 ( fig. 3-68 ), unscrew bolts 7 and remove covers 8 of the differential box bearings, adjusting nuts 10 and outer rings...
Checking the technical condition of gearbox parts
Before inspecting the gearbox parts, rinse them thoroughly. This will make it easier to detect wear and damage to the parts. Check if there is any damage to the main gear teeth...
Before inspecting the gearbox parts, rinse them thoroughly. This will make it easier to detect wear and damage to the parts. Check if there is any damage to the main gear teeth...
Gearbox assembly
Reliable operation of the reducer is ensured by strict adherence to the following assembly and adjustment techniques. The reducer parts are shown in Fig. 3-72. Fig. 3-72. Rear...
Reliable operation of the reducer is ensured by strict adherence to the following assembly and adjustment techniques. The reducer parts are shown in Fig. 3-72. Fig. 3-72. Rear...
Adjusting the pinion bearings
To limit axial displacements of the drive gear under operating loads, it is very important to create a preload in its bearings within specified limits. The preload is controlled...
To limit axial displacements of the drive gear under operating loads, it is very important to create a preload in its bearings within specified limits. The preload is controlled...
Checking the contact of the working surface of the main gear teeth
For the final test bench check of the quality of the main gear engagement. install the adjusted gearbox on the stand and lubricate the working surfaces of the driven gear teeth...
For the final test bench check of the quality of the main gear engagement. install the adjusted gearbox on the stand and lubricate the working surfaces of the driven gear teeth...
Replacing the pinion seal
The need to replace the seal is determined by the decrease in the oil level in the rear axle housing (due to oil leakage through the seal) to a level that disrupts the normal...
The need to replace the seal is determined by the decrease in the oil level in the rear axle housing (due to oil leakage through the seal) to a level that disrupts the normal...
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More articles from other manuals on VAZ cars:
➠ Transmission: Rear axle VAZ-21051 (1979-2010)
➠ Transmission: Rear axle VAZ-2107 (1982-2012)
➠ Transmission: Rear axle VAZ-2101 (1970-1983)
➠ Transmission: Rear axle VAZ-2106 (1976-2006)
➠ Transmission: Rear axle VAZ-21051 (1979-2010)
➠ Transmission: Rear axle VAZ-2107 (1982-2012)
➠ Transmission: Rear axle VAZ-2101 (1970-1983)
➠ Transmission: Rear axle VAZ-2106 (1976-2006)
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