Randy, et al,
Oops! I knew I should have checked the manual before I "opined"! The
vacuum switch inhibits DISENGAGEMENT of the overdrive at high manifold
vaccum levels, not engagement as I had previously written. And that's
all it does - no other effect on operation.
Bill
Randy Rees wrote:
>
> The vacuum switch is just so if your in OD and really put your foot into
> it (like to pass) it will automatically drop out of OD. Not really
> needed but nice. BTW it was also an option and not all OD equipped cars
> have it.
>
> >-----Original Message-----
> >From: Thomas_Mitchell@notes.amdahl.com
> >[SMTP:Thomas_Mitchell@notes.amdahl.com]
> >Sent: Wednesday, April 23, 1997 12:42 PM
> >To: mgs@autox.team.net
> >Subject: overdrive
> >
> >
> >
> >
> >
> >HI, I have a 1966 MGB-GT and I have overdrive type D and transmission
> >coming to my house and I am
> >researching what it will take to install them.
> >I cannot find the vacuum switch and have been told that they only used in
> >on the early overdrives and then got rid of it.
> >I have been told that I really don't need it, can I get another source on
> >if this is indead true? I hate to go through all
> >this expense and mess up my new overdrive. Can anyone help?
> >
> >Tom MItchell
> >1966 MGB-GT
> >
> >
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