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Parking brake warning light for a 71?
#41
(07-02-2019, 10:48 PM)Don C Wrote: Another thought, by using the mechanical brake light switch and a pressure switch, only a failure in the brake circuit (front or rear) that the pressure switch is connected to would trigger the warning light.
This may be more inline with what's needed to reconnect the disabled brake idiot light, but I also wondered if I could simply reconnect the rear brake line from the m/c and then to the remote bias valve. SSBC say to disconnect the prop valve's rear circuit and plug it off. By doing this, the idiot light will not work, on all the time, so to unplug the switch wire.

From personal experience, the two times in my life I have had a complete brake failure, the idiot light coming on to warn me was the last thing on my mind! It really is only useful as a warning when you start the car and before you drive off...…….. so you know your brakes are shot before you hit the ditch!!

Geoff.

I learn something new every day!
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#42
I know what you mean, I had the brake pedal to the floor once, before dual master cylinders (no warning lights back then). I've only had the brake light on once, and that was due to a leaking wheel cylinder, still had some brakes, though.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#43
(07-03-2019, 08:10 AM)Don C Wrote: I know what you mean, I had the brake pedal to the floor once, before dual master cylinders (no warning lights back then). I've only had the brake light on once, and that was due to a leaking wheel cylinder, still had some brakes, though.
You got lucky!
One of the times mine failed, I was approaching a busy 3 lane highway in the UK. I started to hit the brake pedal at a normal distance expecting to stop at the junction. Instead of that, the pedal hit the floor, I filled my pants, grabbed first gear then the HAND BRAKE and cranked the wheel to the left and slid the car across three lanes without hitting anyone, coming to a stop on the verge. Fortunately I also missed a car turning into the junction. Very scary and not something I'd ever want to repeat.
I had a steel brake line rupture. I also had 3 fully charged scuba tanks in the trunk (Boot).
Geoff

I learn something new every day!
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