Christopher M. Delling wrote:
>
> I have a 77B, which came with no O.D. I am now in the process of
> installing a O.D. tranny.
>
> As I understand, there are two switches on the tranny - a reverse light
> switch, and a O.D. switch which is closed when the car is in 3/4,
> allowing the O.D. to be active. This switch, according to Moss/Vicky B
> is the same part # for both locations, and I have installed new switches
> at both points on the new tranny.
>
> Now my question: My old tranny also has two switches, basically in the
> same location as the O.D. tranny. What is the second switch for? Was a
> neutral safety switch fitted on later B's. I'm lost!
>
> Regards,
>
> Chris Delling
Chris -
The second switch is part of the emmission control system It enables
the vacuum advance to work in fourth gear only (at least on my '79B)
--
Keep on keepin' on!
Wayne Kube wkube@iadfw.net
1979 MGB http://web2.airmail.net/wkube
Plano, TX
Texas MG Register http://www.tmgr.org
NAMGBR UK Site http://www.mgcars.org.uk/namgbr
NAMGBR US Site http://www.british-cars.org.uk/kimber/namgbr
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