[Healeys] Brake Lockup

[Bob Spidell]

Your $0.02 is appreciated. Rotors and pads were replaced not too long 
ago, but it's probably been 20 years since I rebuilt the calipers.

Bob

On 8/5/2020 9:27 AM, Michael MacLean wrote:
> Maybe the right caliper was fluid starved for so long that is froze in 
> place or at least is binding up for that reason. If all the brake 
> lines are clear, the only thing left is the caliper.  Sounds like time 
> for a rebuild.  Just my two cents.
> Mike MacLean
> On Tuesday, August 4, 2020, 10:07:19 PM PDT, Bob Spidell 
> <bspidell at comcast.net> wrote:
>
>
> Flex lines are only a couple years old, and the hard lines are fairly
> fresh cupro-nickel. You got me thinking, though, the RF hard line may
> have a slight kink (they're both coiled). I'll check it out.
>
> Bob
>
> On 8/4/2020 9:57 PM, sentenac.rw at gmail.com 
> <mailto:sentenac.rw at gmail.com> wrote:
> > Bob, could there still be some debris in the right front brake line
> > that keeps the right brake from being as effective as the left?  Or an
> > internally frayed flex line to the right brake?
> >
> > -Roland
> >
> > On Tue, 4 Aug 2020 21:50:42 -0700, you wrote:
> >
> >> Thanks, Kees. The car's brakes are stock BJ8; i.e. single circuit. It
> >> pulls down straight, but locks the front left only. I replaced pads and
> >> rotors about 4 years/20K miles ago, and the old gear looked to be 
> pretty
> >> evenly worn. The right rear line was the one that was pinched, and I
> >> thought for sure that would cure the lock-up; it did pull before I
> >> replaced the line, but I don't remember the direction (pull to the 
> right
> >> would have been expected, I think).
> >>
> >> I'll take a look at the pads and rotors when I get a chance.
> >>
> >>
> >> On 8/4/2020 9:18 PM, Kees Oudesluijs wrote:
> >>> Sounds like one of the calipers is (partly) seized. The car is
> >>> probably pulling to one side as well under normal braking. An overhaul
> >>> of the calipers and new pads would probably sort it. Also check the
> >>> discs.
> >>>
> >>> If you have a dual brake circuit fitted which is split in circuits
> >>> with one front and the opposite rear brake, check the Pressure
> >>> Differential Valve or Pressure Differential Warning Actuator (PDWA).
> >>> The plunjer should be central but can get dislodged after leakage or
> >>> bleeding the brakes.
> >>>
> >>> But first check the tyre pressures.
> >>>
> >>>
> >>> Kees Oudesluijs
> >>>
> >>>
> >>>
> >>> Op 5-8-2020 om 05:00 schreef Bob Spidell:
> >>>> Listers,
> >>>>
> >>>> Today I replaced a section of brake line on my BJ8 that I'd squashed
> >>>> with a jackstand. The operation was a success, and I got good pedal
> >>>> after bleeding, but when I stomped on the brakes only the front left
> >>>> locked-up. This has been the case as long as I can remember, but as I
> >>>> don't usually need to lock them up it hasn't bothered me. But, now
> >>>> I'm wondering 'why?' There's no adjustment on disk brakes, obviously,
> >>>> so why would one squeeze harder than the other?
> >>>>
> >>>> Bob
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