[Healeys] Sticking brakes

[Jim LeBlanc]

I have fixed this problem on 2 Healeys. Both had sticky hydraulics. One had
very dirty disc brake calipers. We dismantled, cleaned and problem was gone.
On the BN-1 and BN-2 master cylinders, they are famous for dirt causing the
long piston to stick. In all cases I no longer rebuild cylinders. I send them
to a rebuilder for the perfect job.
 
In the case of the BN-1 and BN-2 using silicone brake fluid requires
modifications to the master cylinder.
 
To me it is unlikely a problem with hoses. With three wheels sticking, it is
likely the master cylinder. Usually easy to diagnose and fix.
 
Best Regards,
 
Jim LeBlanc
1956 100-M

--- On Mon, 8/16/10, pennell at cox.net <pennell at cox.net> wrote:


From: pennell at cox.net <pennell at cox.net>
Subject: [Healeys] Sticking brakes
To: healeys at autox.team.net
Date: Monday, August 16, 2010, 8:46 AM


Listers,

Had an interesting happeniing on a recent drive.  It felt like the brakes were
sticking and I could also feel it as I slowed just before a stop.  I cut my
drive short and went home.

Several days later I jacked up the rear and found the left rear would stick
solid after applying the brakes.  The right rear remained free.  The only way
I could free it was to remove the wheel to get enough effort on the adjuster
to turn it.  One click released it fully.  Since then several times I have
applied the brakes, waited 24 or more hours, and checked again.  Still stuck.

I know this symptom could be a sign of the rear flex hose swelling but
wouldn't that also cause the right rear to hang up?  Any thoughts please?

Keith
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