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Brake Light Problem

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  • Brake Light Problem

    All

    I have a strange one for you all. When I first turn on my Birkin, my brake lights work, but once I get underway, my brake lights stop working. Any ideas???? This has been tested several times and its 100% re-creatable.

    Scott

  • #2
    Brake light switch that fails when it gets heated up?

    Comment


    • #3
      The Birkin supplied pressure switch (mounted on the diff) is known to break. I put in an aftermarket low-threshold pressure switch and had not a problem since.

      But just to make sure you should look with a volt meter if the switch is really the problem or something else.

      Gert

      Comment


      • #4
        Gert, Slomove thanks for the info. I will take a look (aka take it to someone who knows what they are doing) and get back to you. I hope it is that easy.

        Scott

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        • #5
          I think its ignistion

          Hi all, well all looks good (with what I can do). I think it might be the key ignistion part because the brake lights work in position 1, but when I go to postion 3 to start the car and back to position 2, that is when they stop working. I am calling Woody to see if he can help. A little frustrating, but brake lights are important.

          Scott


          Originally posted by slomove View Post
          The Birkin supplied pressure switch (mounted on the diff) is known to break. I put in an aftermarket low-threshold pressure switch and had not a problem since.

          But just to make sure you should look with a volt meter if the switch is really the problem or something else.

          Gert

          Comment


          • #6
            Guys...I cannot explain this, but it started working again. I have a gremlin or a loose fitting somewhere. I unplugged the connector behind the ignition key and put it back on. They brake lights work now. Not sure I understand this one.

            Comment


            • #7
              Caterhams do similar things. One that comes to mind is the turn signals that suddenly stop working. If you cycle the Emergency flasher switch a few times they are fine, for awhile at least.

              Doug

              Comment


              • #8
                Originally posted by scottspiess View Post
                Guys...I cannot explain this, but it started working again. I have a gremlin or a loose fitting somewhere. I unplugged the connector behind the ignition key and put it back on. They brake lights work now. Not sure I understand this one.
                Can be corroded or grimy contacts in the ignition key switch or the connectors. Just dump the key switch, it is anyway just a hazard for your right knee :)

                Gert

                Comment


                • #9
                  Originally posted by Doug Liedblad View Post
                  Caterhams do similar things. One that comes to mind is the turn signals that suddenly stop working. If you cycle the Emergency flasher switch a few times they are fine, for awhile at least.

                  Doug
                  Same thing with my Birkin and the turn signals. Not sure if it has happened with my brake lights though.

                  Comment


                  • #10
                    Slomove I think you are onto something

                    Hey do you have a link to to that 3rd party or part number. I think you are onto something here. I am getting results then failure, so its electronic. I am working with a local source that is interested in the car. Slow but cost effective.

                    Scott


                    Originally posted by slomove View Post
                    The Birkin supplied pressure switch (mounted on the diff) is known to break. I put in an aftermarket low-threshold pressure switch and had not a problem since.

                    But just to make sure you should look with a volt meter if the switch is really the problem or something else.

                    Gert

                    Comment


                    • #11
                      Gert...sorry I thought that was posted by Slowmove....my bad...

                      Comment


                      • #12
                        Well, not really.....last time I looked my handle was Slomove ;o)

                        I can try to locate where I got that low-pressure switch tonight. I remember I got the reference from Brian Anderson (the S2k builder). But is has been really robust (6 years and counting) and I need to touch the pedal only very lightly.

                        Gert

                        Comment


                        • #13
                          Ah found it already:

                          PARR Automotive part # RFW-SW-32 low pressure brake light
                          switch. Their Phone # in Oklahoma is 1-800-654-6779 .They also carry a
                          mechanical switch for brakes # RFW-SW-62. The first switch is a direct
                          replacement for Birkins and many Caterhams.

                          Hope they are still around. I bought it a long time ago.

                          Comment


                          • #14
                            Gert, their website says "...For 58 Years And Counting." How long ago did you order that part! ;)

                            Here's a direct link to the switch:
                            http://www.parts123.com/parts123/yb....Z5Z5Z50000042b
                            Tom "ELV15" Jones
                            http://PIErats.com

                            Comment


                            • #15
                              Thanks guys :)

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