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4-speed manual transmission car BMW 3 Series E21
Detailed technical specifications
The four-speed gearbox is manufactured by Getrag with Borg-Warner synchronizers on all forward gears. Gear shifting is performed by a lever on the body floor...
The four-speed gearbox is manufactured by Getrag with Borg-Warner synchronizers on all forward gears. Gear shifting is performed by a lever on the body floor...
Four-speed gearbox housing parts
Details of the four-speed gearbox housing: A - until August 1977.; B - since August 1977. 1 - gearbox housing; 2 - front cover of the gearbox, combined into...
Details of the four-speed gearbox housing: A - until August 1977.; B - since August 1977. 1 - gearbox housing; 2 - front cover of the gearbox, combined into...
Removal and installation the gearbox
Removal Disconnect the wires from the battery terminals and, working from the engine compartment, unscrew the bolts securing the gearbox housing to the engine...
Removal Disconnect the wires from the battery terminals and, working from the engine compartment, unscrew the bolts securing the gearbox housing to the engine...
Disassembling the gearbox
Remove the rear cross member and the exhaust pipe mounting bracket. Place the gearbox on the 23 0 050 rotating stand for disassembly. Drain the oil from the...
Remove the rear cross member and the exhaust pipe mounting bracket. Place the gearbox on the 23 0 050 rotating stand for disassembly. Drain the oil from the...
Disassembling the gearbox shafts
Remove the primary shaft, remove the synchronizer locking ring and press the bearing off the end of the secondary shaft. Remove the retaining ring, thrust...
Remove the primary shaft, remove the synchronizer locking ring and press the bearing off the end of the secondary shaft. Remove the retaining ring, thrust...
Shaft details of four-speed gearbox produced before August 1977
Details of shafts of four-speed gearboxes manufactured before August 1977: A - secondary shaft parts; B - secondary shaft; C - primary shaft; O - intermediate...
Details of shafts of four-speed gearboxes manufactured before August 1977: A - secondary shaft parts; B - secondary shaft; C - primary shaft; O - intermediate...
Shaft parts of a four-speed gearbox produced since August 1977
Details of shafts of four-speed gearbox produced since August 1977: 1 - secondary shaft; 2 — primary shaft; 3 — intermediate shaft; 4 — secondary shaft flange...
Details of shafts of four-speed gearbox produced since August 1977: 1 - secondary shaft; 2 — primary shaft; 3 — intermediate shaft; 4 — secondary shaft flange...
Assembly of gearbox shafts
Measure the width of the guide ribs of the gear shift forks, which should be within 5±0.1 mm. Check for excessive wear on the synchronizer locking rings: if...
Measure the width of the guide ribs of the gear shift forks, which should be within 5±0.1 mm. Check for excessive wear on the synchronizer locking rings: if...
Assembling the intermediate shaft
Heat the gears of III and IV gears to a temperature of 120-150°C. When pressing the gears of the third and fourth gears onto the intermediate shaft, it is...
Heat the gears of III and IV gears to a temperature of 120-150°C. When pressing the gears of the third and fourth gears onto the intermediate shaft, it is...
Gearbox assembly
Determining the thickness of the adjusting ring installed between the speedometer drive pinion and the secondary shaft rear bearing Measure the distance "C"...
Determining the thickness of the adjusting ring installed between the speedometer drive pinion and the secondary shaft rear bearing Measure the distance "C"...
Gear Selection and Shift Mechanism and Gear Shift Control Mechanism Parts
Gear Selection and Shift Mechanism and Gear Shift Control Mechanism Details: A - until August 1977.; B - since August 1977. 1 - gear shift lever handle; 2 —...
Gear Selection and Shift Mechanism and Gear Shift Control Mechanism Details: A - until August 1977.; B - since August 1977. 1 - gear shift lever handle; 2 —...
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