Gearbox «BMW 242/4» car BMW 5 Series E12

Manual Transmission Specifications
BMW 5 Series vehicles were initially equipped with two types of gearboxes: on models "528", "520" and "520i": BMW 242/4 four-speed gearbox with Borg-Warner...

Gearbox housing parts for cars with 4-cylinder engines
Gearbox housing parts for vehicles with 4-cylinder engines: 1 — crankcase; 11 - Front cover of the gearbox, combined into one unit with the guide sleeve of the...

Gearbox shaft parts for cars with 4-cylinder engines
Gearbox shaft parts for cars with 4-cylinder engines: A - secondary shaft parts; B - secondary shaft; B - primary shaft; G — intermediate shaft.

Gear selection and shift mechanism parts
Gear selection and shift mechanism details: 1 — bracket; 2 - gear shift lever; 3 — gear shift drive rod; 4 — gear selector rod lock; 5 — fork for shifting III...

Removal the gearbox
Disconnect the wires from the battery terminals and, working from the engine compartment, unscrew the bolts securing the gearbox housing to the engine block....

Disassembling the gearbox
Remove the rear cross member and the exhaust pipe mounting bracket. Install mounting plate 6002-2 and place the gearbox on the rotating disassembly stand....

Removal the primary and secondary shafts
Knock out the pins from the sockets of the gear selection rod, the 3rd and 4th gear shift fork, the 1st and 2nd gear shift fork, and the reverse gear fork rod....

Disassembling the secondary shaft
Remove from secondary shaft in sequence and arrange in order of removal (see photo and drawing) fourth gear synchronizer locking ring, locking and adjusting...

Secondary shaft assembly
Partially assemble the secondary shaft in the reverse order of disassembly, first of all pressing the 2nd gear onto the shaft, and lastly the reverse gear....

Determining the thickness of the secondary shaft adjusting rings
Measure the length of the gear block between the shoulder of the hub of the synchronizer clutch of the III and IV gears, having first moved one of the...

Determining the thickness of the primary shaft adjusting ring
Press the rear bearing of the primary shaft into the socket of the gearbox housing, placing a 1 mm thick ring on the clutch side. Measure the depth of the...

Determining the thickness of the intermediate shaft adjusting rings
Insert the intermediate shaft with pressed bearings into the gearbox housing and measure the length of the intermediate shaft gear block, i.e. the distance...

Gearbox assembly
The gearbox is assembled in the reverse order of disassembly, taking into account the following: install the reverse intermediate gear on the axle, without...

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