Try backing out the mechanical brake light switch on the pedal box cover
until the lights nearly come on. If the switch has been changed and not
adjusted properly [set too deep] it will cause the symptoms you
describe.........Doug Keeble
Matthew Trebelhorn wrote:
>
> I have an intermittent problem -- occasionally, one of the front discs on
> my '70 MGB will drag. Sometimes left, sometimes right, once both. Last
> fall, I bled the brakes & thought I had it licked -- 3 or 4 k miles
> later, it was back. It seems to happen more often at one particular spot
> on my commute -- going down a fairly steep hill, just before I get to
> work. (I know, I could just avoid work ;-)
>
> I have the teflon/stainless steel flex lines, 2-year-old white post-ed
> calipers, and a 5 or 6 year old rebuilt/resleeved M/C. 2 or 3 year old
> discs, v8 pads about a year old. No puddles, levels stay where they
> should be. Castrol DOT4.
>
> Any thoughts? I would say "look at those flex hoses, maybe they're
> swelling (etc.)" but it's my impression that the teflon ones are pretty
> tough. If it were one side, always, I would look at that caliper. But
> with the problem going from side to side, I'm afraid of the M/C.
>
> I remember it as a real pain to get out, tight little space, etc. Also,
> the last time I did it, I rebuilt the original cyl. -- no good, tricky
> devil. Then, I bought a rebuilt piece, which leaked all over my shoes
> after about a day. I had to return it, and get another rebuilt M/C.
> Which is currently in the car.
>
> On the other hand, it might be an excuse to clean out and repaint that
> corner of the engine bay...
>
> What does anybody think about this one?
> Thanks to all,
> Matt
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