4 speed auto box ?

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martauto
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Post Fri Jan 09, 2015 5:23 pm

HI , 1987 316 Baur 4 speed auto.

I never took much notice of when it changed up as in speed ( on a flat surface) until now when I noticed that I was in 4th @ 35mph.
Then at @ 58 mph it locked into what I would call "overdrive".

Is this normal ?

Cheers Mart.
Only the E46 cab left now.
Just got too old.
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mark_i
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Post Fri Jan 09, 2015 5:27 pm

hey mart

that's normal... the torque converter gets locked at +/- 80 km/hour to provide a solid connection between crank and prop.
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martauto
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Post Fri Jan 09, 2015 5:44 pm

mark_i wrote:hey mart

that's normal... the torque converter gets locked at +/- 80 km/hour to provide a solid connection between crank and prop.
Auto overdrive then it is winkeye , Cheers Mark.
The old girl seems to work OK then.

Mart.
Only the E46 cab left now.
Just got too old.