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brake light on vrs pedal distance
I have a backdraft,#595, when I push on the brake pedal the brake light does not come on until I am almost to the end of the distance that the pedal goes. I was told to put a external switch on the pedal arm but if I do that so the switch turns on the light, I wont be able to continue to push the pedal down to apply the brakes. Should I try to bleed the the brakes to see if the pedal comes up higher, or is something else needed?
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Put a normally closed switch at the return of the pedal with a return spring to keep it engaged until you brake. Then it will not matter what the travel is on the brake.
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Right, like Infletcher said. Something like this one:
https://media.digikey.com/photos/Omr...0SS-01GL2D.jpg These often have three pins and can be wired either normally open or normally closed. If you look closely you can see the pins on this one are labeled (L-R): C (common / hot), NO (normally open) and NC (normally closed). Wire it so it's normally closed. The circuit will be open when the roller is pressed against the brake arm and when you press on the pedal the arm will move away from the roller and close the circuit, energizing the brake light circuit. https://www.digikey.ca/en/products/d...SS-5GL2D/17243 |
Be aware of contact current ratings if the lights aren't on a relay. You want a switch not a fuse.
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what about using a door jam interior light switch?
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Steve this thread should help.
Member True007 had a good quick fix for a plunger normally closed switch with bracket and PN http://www.clubcobra.com/forums/back...ke-lights.html Pics here https://www.dropbox.com/sh/pplph2b2p...n8UXn1oFa?dl=0 |
Thank everyone for the help, getting mechanical switch tomorrow.
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https://uc896b1662f1f2be5915a4c5d011...ue&size_mode=5 Standard Motor Brake Light Sending Units SLS66 https://www.summitracing.com/parts/smp-sls66 Probably available at virtually any auto parts store. |
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Sorry Quentin is that was your fix and I misnamed it. I remember saving the Dropbox pics link and thought I tagged the genius correctly, lol
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Too many times too many make it far mor complicated than necessary. Simple bracket with a momentary contact switch. 1 bracket. 1 hole, 1 switch. 2 wires. 1 fix. Done go drive.
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spdbrake, how did you get or what did you use to get the wiring from the engine bay to under the dash through the drilled hole to the switch?
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Ok guys, I installed the mechanical switch, did not work, I reconnected the original brake line to the switch on the reservoir , it doesn't work. Do I need to replace the switch? Fuses are good.
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Can you post a photo of your switch installation Steve?
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BTW, when I first received my car (not a BDR) the stop light switch only worked when the ignition was on. Obviously that would be an immediate failure on any safety inspection and one of the first deficiencies to be addressed. |
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