Function of L position on BW8 automatic gearbox

Technical advice Q&A

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ysmalkie
Posts: 128
Joined: Fri May 16, 2014 9:11 am
Location: Poland
Poland

#1 Function of L position on BW8 automatic gearbox

Post by ysmalkie » Wed Dec 04, 2019 7:48 pm

I am trying to diagnose my friend's problems with his BW8 gearbox. I am not a fan of automatics, and I have a feeling it works differently than the more modern units.

I understand L means "Lockup" not "Low", but how does it function?

I presume D1 allows to drive in 1st, 2nd and 3rd gear and is a equivalent of a modern "D" position?

I understand D2 allows you to drive in 2nd and 3rd gear - what would you use it for??

However I do not understand what's the L function:
- can I select it from D1 or D2?
- does it always downshift from 3rd gear to 2nd?
- does it always downshift to 1st when I am in 2nd gear?

The manual uses 3 throttle positions:
- Minimum
- Full
- Kickdown

What's the difference between "full" and "kickdown"?

And what is the meaning of "accelerator at the detent"??


Being Polish, I should polish up my English...

Mant thanks for help..

Tadek
Tadek

e-type S1 3.8 FHC - in restoration phase...
Jaguar XK120 OTS
Austin-Healey 100 BN2

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mgcjag
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#2 Re: Function of L position on BW8 automatic gearbox

Post by mgcjag » Thu Dec 05, 2019 10:15 am

Hi Tadek....have you seen this booklet...available on ebay etc...full operating details are in there..its a great littlr book worth getting...here are a few photos ..should help you...Steve
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Steve
1969 S2 2+2 & Building a C type replica

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Topic author
ysmalkie
Posts: 128
Joined: Fri May 16, 2014 9:11 am
Location: Poland
Poland

#3 Re: Function of L position on BW8 automatic gearbox

Post by ysmalkie » Thu Dec 05, 2019 11:31 am

Many thanks - exactly what I needed!
Tadek

e-type S1 3.8 FHC - in restoration phase...
Jaguar XK120 OTS
Austin-Healey 100 BN2

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