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Join Date: Sep 2001
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steering box E28
I have not yet read about the subject of worn steering boxes here.
I have owned a few E28's. Although the steering box gear end play is adjustable (screw and lock nut), this doens't get good result because the sector and "rack" are always worn locally (not evenly), so the play can never be eliminated thoughout the entire range of motion. New steering boxes are very expensive and used ones all have the same problem.
I was pleased to find that the manual from Schiff European covers steering box overhaul in detail, making the job much easier. I also have the required knowlegde, experience and contacts to have the sector and rack reground and hardened, which would get them into "as new" condition. However, this is very expensive for just one set of gears, so I would like to do 5 or 10 sets at least. This might result in a realistic overall price.
Would anyone be interested, or any other ideas or leads?
p.s. I drive a euro E28 M5. According to the ETK this is the only E28 model with a different steering box (same as M635Csi). Does anyone know what the difference is? It looks the same as any other. Fast ratio gears maybe?