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Home >> BMW >> 1978 >> 630CSi Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5301, 633CSI & 733I 6 Cylinder >> Engine, Cylinder Head & Manifolds >> Automatic Transmission

Automatic Transmission

  1. Disconnect accelerator cable at transmission and take off of counterholder. Drain oil from transmission and remove filler tube. Plug filler tube opening and disconnect oil cooler lines at transmission. Remove web from bottom of driveshaft tunnel. Detach exhaust suspension mounting and disconnect wire harness to transmission.
  2. Rotate torque converter and remove four bolts securing converter to drive plate. Disconnect shift rod from lever. Disconnect drive shaft coupling at rear of transmission and loosen threaded coupling at rear of center support bearing.
  3. Remove center support bearing and pull drive shaft down and out to remove. Disconnect speedometer cable and backup light connection. Remove transmission crossmember, allowing engine oil pan to rest on front axle crossmember.
  4. Place a jack under transmission and remove ground strap. Separate transmission from engine, making sure torque converter stays in housing in transmission. Remove transmission.
  5. To install, reverse removal procedure. When installing, make sure center support of torque converter is below edge of transmission. Push center support forward 0.08" (2 mm) to preload center bearing and tighten nuts. Adjust accelerator cable lever.
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