Uh Max, my 1969 MGB has a switch that is mounted to the cover for the
pedal assembly. If the pedal is all the way out the other side of the
lever pushes against the switch and opens it so that the brake lights
are off, when I push on the brakes, the switch is allowed to close,
turning on the light. The pressure sensitive switch is for the brake
warning circuit, if one side of the circuit gets too much pressure,
the warning light comes on.
On Sat, Jun 14, 2003 at 09:20:13AM -0700, Max Heim wrote:
> The other night another driver informed me that the brake lights weren't
> working on the B. I was astonished to hear this, so when I got home, I
> backed up to a fence and tried to confirm the problem. What I found out
> puzzled me. There was no sign of brake lights upon normal application of the
> pedal, but if I really really pushed hard on the pedal (I mean ridiculously
> hard, with both feet), the brake lights came on.
> I could come up with an explanation for this situation if there was an
> adjustable, pedal-mounted switch, as in some cars, but the B has a
> pressure-sensing switch in the brake line, which I always thought of as
> bimodal (on or off above a certain threshold), not as progressive. Anyone
> have any insight? Obviously the switch has not (completely) failed, and the
> bulbs work.
> Max Heim
> '66 MGB GHN3L76149
> If you're near Mountain View, CA,
> it's the primer red one with chrome wires
Girling is not a verb.
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