Re: IML: AW: AAJ vs stock brakes for 1957

[PAUL WENTINK <randalpark@xxxxxxx>]

I drive several cars with factory disk brakes. They require 
maintenance, and after a lot of use, the rotors become warped, causing 
the pedal to pulsate. At that point I look for new rotors. Turning the 
old ones works for a while, but the pulsation returns sooner, since the 
rotors are thinner after turning and cannot absorb as much heat.

There are pluses and minuses to both systems. I like to keep things 
stock, and adjust my driving to the vehicle that I am in. Nothing can 
stop on a dime. Everything is a compromise. The driver's behavior is 
the key.

Paul W.


-----Original Message-----
From: dietmar frensemeyer <stadtapoachern@xxxxxxxxxxx>
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Mon, 10 Dec 2007 12:08 am
Subject: IML: AW: AAJ vs stock brakes for 1957



My son has a business, that offers big brake upgrade to fast and heavy 
cars.
I had any possibility to change the brakes of my 1960 Imperial to disk
brakes.
I don’t.
Driving the Imp in a moderate manner and caring about the huge drum 
brakes
is sufficient.
I’m not convinced that a disk system fitting to 14 “ or 15” wheels will
improve braking power.
Disks are more easy to maintain and the knowledge to maintain and adjust
drum brakes has become rare.
I read many offers in the US market saying: “easy to install”, “one hour
job”, “life time warranty” – I’m not convinced that this is the truth.


Dietmar

________________________________________
Von: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] Im Auftrag von John Corey
Gesendet: Montag, 10. Dezember 2007 01:20
An: mailing-list@xxxxxxxxxxxxxxxx
Betreff: Re: IML: AAJ vs stock brakes for 1957

I have to agree with Kenyon - NEVER lick the brake dust from your 
wheels.
 That said, well-maintained stock drum Imperial brakes work pretty darn
well.  I can say that they even tolerate a fair level of hard use, 
judging
from their performance in my 61 softtop (coast-to-coast road rally, 
4,000
not-exactly-gentle miles in two weeks, summer of '06).  Given the modest
mileage on yours, I'd say replace the rubber and ride!

Now here's a question - given the relative simplicity of disc brakes, 
how is
it that the remarkably complicated drum brake systems ever became 
standard.
 One argument is that they are self-energizing; a useful trait before
reliable power boost; but that hardly explains why they lingered on for
decades after power brakes were introduced.  That they stayed on cheaper
models longer suggests they're cheaper to make, but just looking at the
parts count and total mass of the two systems, that seems impossible. 
 Any
ideas why discs didn't own the world earlier?

jc


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