[Healeys] Rear breaks locking

[Greg Mandas]

Bob, Magnus,

Sounds like you guys are talking about asbestos. I had to deal with it when I
had my 1979 BMW 528i. (That was a great car.) When "they" outlawed it in the
USofA, the reformulated brake pads were harder so there were a lot of
squealing BMWs in the early 80's.  I believe there was a reformulation of the
rotors, making them softer to coincide. The issue was (and I'm going out on a
limb here) old rotor formula with new pad material. But, I could be and often
am FOS...

Greg

--- On Mon, 10/18/10, Bob Spidell <bspidell at comcast.net> wrote:

> From: Bob Spidell <bspidell at comcast.net>
> Subject: Re: [Healeys] Rear breaks locking
> To: healeys at autox.team.net
> Date: Monday, October 18, 2010, 8:44 AM
>  Magnus,
>
> Are you saying the newer materials used in the shoes are
> causing this problem?  That would mean, I guess, that
> the new shoe linings are more effective than the old
> (actually, TOO effective).
>
> I've noticed in the past that one or the other rear brake
> would lock before the fronts (BJ8).  I put new shoes in
> a couple years ago and when I missed a turn and slammed on
> the brake pedal recently I got pretty even locking all
> around IIRC.
>
> Presumably, then, someone with all drum brakes wouldn't
> have the rear-only lockup problem, and a proportioning valve
> would solve this problem?
>
> bs
>
>
>
> On 10/17/2010 11:16 PM, Magnus Karlsson wrote:
> > It can be very dangerous if the rear wheels lock up
> before the front.
> > Unfortunately fixing the servo won4t cure that
> condition.
> >
> > If you assemble a Healey brake system today, correctly
> and with all new parts,
> > you will find that in most cases the rear brakes lock
> before the front
> > ones. I think that most people never actually test
> this and thus are not aware
> > of the problem. I don4t know if it was the same when
> the
> > cars were new and different materials were used in the
> brake pads and linings.
> > I have tried to make the companies supplying parts
> > aware of this problem but had no response. I have also
> mentioned the problem
> > on this list several times without getting much
> attention.
> >
> > Magnus Karlsson
> > www.concourshealeys.com
> >
>
>
> --
> *******************************************************************
> Bob Spidell       
>    San Jose, CA       
>     bspidell at comcast.net