On 2 Apr 1996, SLUPECKI A. wrote:
>
> I have a 78B which is pretty much stock. On the metal pedal box located
> between the brake master cylinder and clutch master cylinder, there is
> what I think is a vacuum switch. There are two wires coming from the
> bottom and two places for hoses to attach --- only there aren't any
> hoses there. I can't find any reference to this in my Haynes manual or
> the Moss/VB catalogs. What is supposed to be connected and what does
> this switch do?
>
> Thx...Andy Slupecki
> 78 MGB (in more pieces than I would like with spring
> approaching)
>
>
>
>
Probably the same useless unit as on my '79 B - Which I've removed - what
that unit does is cutout the vacuum advance unless you are in 4th gear -
the wires go down to the tranny - one hose comes from the carb to that
unit (anyone know what its called?), the other one goes to the
distributor. When I bypassed it, and taped the wires, my B ran better.
I've kept all the hardware tho, so that California smog police can see it
on its biannual inspection. Note: the above info is from memory, so some
details may be incorrect.
Jim Mellander
jmel@netcom.com
|