G'day
I know of a number of occasions when the drums had to be replaced as
they were worn.
However before doing so I would suggest that the drums be skimmed to
ensure they are completely round and then have a set of oversize brake
shoes made up.
The actual shoe is the same size, but the brake material is thicker to
take up for the thinner drums.
Having said that I also know of drums that expand with heat to such an
extent that the pedal is very spongy. Once they cool, the brakes are
fine.
Hoo Roo
Patrick Quinn
Sydney, Australia
-----Original Message-----
From: healeys-bounces+patrick.quinn=det.nsw.edu.au@autox.team.net
[mailto:healeys-bounces+patrick.quinn=det.nsw.edu.au@autox.team.net] On
Behalf Of Alan Seigrist
Sent: Friday, 1 August 2008 1:34 PM
To: philritten@aol.com
Cc: healeys@autox.team.net
Subject: Re: [Healeys] Brake Question
Phil -
In my 25 years of owning Healeys, this is the first time I have EVER
heard
of this. If what they say was true, you would be able to buy new drums
from
Moss motors, but as you know you cannot buy new brake drums for these
cars -
that's because they don't wear out!
The adjustment bolts on these cars will take up any amount of slack so
I'd
say your shop has been sniffing some brake pad vapors.
Phil - what car do you have? Is it a BN1 or a BN2? Or BN4/6? One
thing
that is very particular about many of the drum brake healeys is they are
very sensitive to how the brake system is bled. This is what is causing
your problem. The brake system is best bled using an "ezibleed" kit
which
pressurizes the brake reservoir and makes sure all air is worked out of
the
system. It MUST be bled in the following order:
Left Rear
Right Rear
Left Front
Right Front
If your shop has not bled the brakes in this way, then this is your
problem,
not the drums. You can confirm this by getting into your car and
pumping
the brake pedal quickly once or twice - if the pressure comes back after
pumping the pedal, this means they have not properly bled the system.
Find a better shop where they know what they are doing, or try to learn
how
to do this yourself. Doing brakes on Nissans and Fords is not the same
as a
'50s era Healey.
Alan
'52 A90
'53 BN1
'64 BJ8
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