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Well it is a long shot but. . . .
I had a similar problem when I first bought my MGB. Had to ride around
with a wrench for a while to relieve hydraulic pressure (by loosening
brake line connection) when problem happened. Not fun.
I rebuilt the whole system, but the only thing I found wrong was the
orientation of some tiny parts (do not know what they are called) at the
outlet fittings of the master cylinder. Some had been installed
backward by the PO, some were missing. Had a heck of a time buying
these things. So tiny they seemed to be flying under the radar at the
parts houses I called. Had to buy used. However, since doing the work
(1995) all has been OK.
Like I said, a long shot.
Good luck.
Bruce Burrows
'59 MGA basket case
'60 Daimler SP 250
'61 Daimler SP 250
'73 MGB driver
My Dart website (not my cars!):
http://community-2.webtv.net/guardian45/THEDAIMLERSP250DART/
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Message-ID: <20000407185751.13678.qmail@www0e.netaddress.usa.net>
Date: 7 Apr 00 14:57:50 EDT
From: Matthew Trebelhorn <matttrebelhorn@netscape.net>
To: mgs@autox.team.net
Subject: Brakes?
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Reply-To: Matthew Trebelhorn <matttrebelhorn@netscape.net>
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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