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I'm here to cause trouble
Join Date: Mar 2005
Location: CA
Posts: 935
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Failing brake light switches in Carreras
So halfway thru a track day yesterday, someone pointed out my lack of brake lights - none of the three were working. "Here we go again..." I thought. It was just a few years ago at another track day that I had the same problem. The brake light switch failed - it's a pressure switch on the master cylinder.
Not wanting to run the rest of the day with no brake lights, I wired up the horn button to the connector that attaches to the switch, so if I needed brake lights (if I was being followed) I could activate them by simply pressing the horn button. (pic below). Question - do these switches fail a lot? Two or three of these in the last 10-12 years seems excessive.... JB 
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'86 Carrera Cabriolet '73 911T Sporto (RIP) '90 Miata LeMons Contender! '71 Datsun 510 (RIP) '67 Fiat 124 Sedan (RIP) '72 Ford Pinto (RIP) '62 Plymouth Valiant '60 Ford Galaxy 500 (RIP) |
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09-04-2010, 05:52 PM
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Great improvisation Sir!!!!!
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Neil 1987 Carrera, Grand Prix White, 2009 Carrera C4S, Meteor Grey Metallic (X) [B] 2011 BMW X5[B] 'Success is not final, failure is not fatal. It is the courage to continue that counts' |
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09-05-2010, 05:27 AM
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,022
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It is a common failure point. I have seen a couple people have a quicker repeat of the failure because they only replaced one switch not realizing that there are two. I personally think this is a great point for an addition of a relay to reduce the stress on the switch. (Just like the headlights.)
I do run high wattage halogen brake light bulbs so I am running a higher wattage through the system. "Gods own brakes and wimpy, wimpy brake lights!"
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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09-05-2010, 06:47 AM
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Pippa
