Ok, I’ll bite. Where’s the “brake light switch warning light” on an
original ‘57 Dodge’s master cylinder? AFAIK the brake light hydraulic
switch threads into the front of the master cylinder and any leaking would be
out of the master, not into it. The parking brake warning light [optional
equipment] is on the emergency brake assembly and is a mechanical switch.
That reminds me, our old emergency brakes work marginally well in an
emergency, not just for parking. In 1996 on the way to the DeSoto
Nationals in Sacramento a guy in a ‘56 DeSoto pulled off the freeway at around
60, hit the brakes on the off ramp, they failed, and he was able to stop the
car. [He also got the hard luck award.]
--Roger van Hoy
Sent: Tuesday, August 05, 2014 9:50 AM
Subject: Re: [FWDLK] dual masters- was RB 383 cam
And
especially unfortunate because your single pot M/C had been overhauled and
was 'working' (i.e.: merely holding surplus brake fluid in it, without
leaking). My car's single-pot failure occurred in 1981, shortly after I
had bought it, and after it had been dead stored for years, and while not
realizing that all of the various fluid levels should be checked
periodically. Unbeknownst to me (because I wasn't checking the brake
fluid level) was that a small amount of fluid was being forced out, past the
brake light switch warning light's threaded insertion (no teflon tape around
it) into the M/C, every time that the brake was applied. Neil
Vedder
On 8/5/2014 8:57 AM, Jim wrote:
Or there's this.... You remove the single mc that has worked fine
for 50 years and ask your mechanic to install a dual plus disk brakes cuz "you
want to be safe". You get the car back and it stops fine. 6 months
later you are driving on the freeway in the rain and traffic is stopped up
ahead. You put on the brakes and the new front flex hose bursts because
it was a little too short and positioned at too sharp an angle and has already
fatigued. But you still have the rear brakes... but since you slam on
the brakes because they are barely stopping the car (without the fronts you
only have 20% braking capacity) the left rear locks up. The car slides
out of control on the wet pavement, you spin across 3 lanes and into a gas
tanker which bursts into flames. Dozens of people flee in the ensuing
panic, those who don't die in the fire are run over, the tanker was under a
bridge, which weakened by the fire collapses cutting off access to a home for
the elderly. Two of the elderly, seeing the melee, have heart attacks.
They die because the ambulance couldn't get to them because the bridge was
burned down by the tanker. If you'd still had the single MC on none of
this would have happened... now single masters don't seem so bad!
Jim Delton
Here's a scenario... you have a perfectly maintained single master
brake system in your 57 Saratoga, while trying to tune in your restored AM
radio, you look up while driving and see its too late! you just ran over an
old guy crossing the street!!! he flies of the top of the car but his walker
went under and folded and rolled, and subsequently caught and tore out your
rear flexible hydraulic line! now you have no brakes and proceed to
broadside a bus full of illegal immigrants, you go through the windshield
upon impact due to lack of belts, airbags, and brakes, the bus flips, and
all the passengers burn to death, though one good event took place
lightening the burden on taxpayers, an old man, his walker, your car, and
bodily well being were compromised! If you had a dual master, you may have
still hit the old guy, but not the bus... now single masters don't seem so
bad!
-----Original
Message----- From: Neil Vedder mailto:esierraadj@xxxxxxxxxxxTo:
L-FORWARDLOOK mailto:L-FORWARDLOOK@xxxxxxxxxxxxxSent:
Tue, Aug 5, 2014 3:10 am Subject: Re: [FWDLK] RB 383 cam
LOL (not)....if they failed, they
were not properly maintained, or overhauled, to prevent such failures
from having occurred. Neil Vedder
On 8/4/2014 4:37 PM, Ray Jones
wrote:
The idea here is that with Dual MC, you have 2 brake systems. Not
much trouble to plumb, using the tubing and components from a later year
car, it's a big safety upgrade.
And, yes, I have had several MC's fail over the too many years I've
been driving these old jewels.
You said you had a wheel cylinder fail, giving you a brake problem.
With a dual system, you would still have the other half to get home
on.
A total upgrade with calipers and rotors on the front, and better
yet on the back also is a real improvement and brings the car up to
highway cruising safety standards.
Ray in Mena, AR
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