BMW ZF5 Input Shaft Seal Driver
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Used to properly seat the input shaft seal flush with the manual transmission casing
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Model information
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- Printables
- Category
- Automotive
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- Creative Commons — Attribution — Noncommercial — Share Alike
This is a driver for proper installation of a new input shaft seal. The new seal must be seated flush with the surface of the transmission casing. It is a recreation of BMW special tool 233340 (83-30-0-491-582), based on the measurements of my own transmission.
This should work for any ZF 5 speed manual gearbox, which were in many BMWs in the 90s and 2000s, including E36, E46, E34 and E39 models. Measurements and testing were done on the ZF S5-31 from my early 2003 330i.
The dimensions are pretty loose, anywhere from 0.5-1mm clearance, they're not particularly critical for this application.
I would recommend the following print settings:
- 0.2mm layer height (larger should work as well, but I've not tested that)
- 3-5 perimeters (I used 4)
- 5-7 top/bottom layers (I used 6)
- 30% cubic (or similarly structural) infill throughout
- 100% infill for the first 5-10mm (I did 10, the filament usage is pretty small)
- No supports
- Place the smaller face on the bed