Author Topic: Exhaust Flap Valve stuck at around 1000 miles - is this a record?  (Read 2354 times)

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OfflineDavid.

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    • Model/year: R 1200 RT / 2012 (Camhead)
    Noise is an emission, hence reducing the dB limit for Euro 5 compliance.

    OnlineBoB21

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      I don't need war and peace





      Believe shorter and more enjoyable read than this thread. And before anybody comments about going off thread the title is about sticky flaps not Ackra cans. And before anybody says anything about sticky flaps I am referring to exhaust valve.
      « Last Edit: 2021-07-06 12:14:10 by BoB21 »

      Offlinemichaelc2710

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        Noise is an emission, hence reducing the dB limit for Euro 5 compliance.


        Can you let me know what the Euro 5 compliance dB level is.




        Bob21
        Point noted  :)   Can I start an oil thread for a bit of excitement....

        OfflineDavid.

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          Sorry, I can't find a definitive answer on what the Euro 5 compliant dB level is. It seems to vary depending on engine size and power to weight ratio.

          What we do know is that BMW redesigned the 1250 exhaust system and Akra produced a new silencer to meet the Euro 5 type approval.
          « Last Edit: 2021-07-06 13:44:23 by David. »

          OnlineCasbar

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            Phew, from Bennets site


            Of those, several were clearly made with Euro 5 in mind. The R1250 models, for instance, with their ShiftCam engines, are clearly created to be Euro 5 compliant, as is the S1000RR, even if they’re still listed as Euro 4 bikes.[/color][/font]

            [/color][/font]
            So as my 2019 was designed with EU5 in mind, its actually listed as EU4, so i can now sleep at night again and know my non EU5 end can will be ok. Glad I haven't traded for a 2021 model now :) Oh and to keep this thread on track, I was just talking to my dealer techs about my EU4 SOS button and they confirmed if I have a flap issue, they don't give a flying about my Akra end can and will replace the headers.[/color][/font] ;)

            OnlineCasbar

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              Been out today for a 100 mile bumble, stopped for lunch. No SOS warning, but - engine management light now on. Just going to whip the can off, but I would suspect flap stuck :) 6100 miles.

              OnlineCasbar

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                New Headers fitted today at 6.5k, saves cleaning them. I only greased the flap a month ago with the high temp grease and sprayed the spring, that is obviously a waste of time . SOS warning is back, only intermittent now. They have raised a case with BMW  8)

                OfflineLevisp

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                  Doesn't inspire confidence. Quite frankly I hope the next generation of RT they drop the valve.

                  Offlinehammo

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                    Some members are getting into a flap over this !!!!!!

                    OnlineCasbar

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                      Doesn't inspire confidence. Quite frankly I hope the next generation of RT they drop the valve.


                      That will be when they are battery powered. Flap is here to stay apparently  8)  But maybe one that doesn't stick might be an improvement

                      OnlineMikeS

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                        Reading this thread has jinxed my bike. It's started making a loud "screeching" noise when the ignition is turned on. Sound is coming from where the exhaust flap is, only makes it when hot which seems strange. No warning lights on the dash.


                        I'll get it booked in to be looked at and wait to be told "they all do that sir".



                        OfflineDavid.

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                          • Model/year: R 1200 RT / 2012 (Camhead)
                          Sound is coming from where the exhaust flap is, only makes it when hot which seems strange.

                          Could be the cable tension/free play needs adjusting.

                          On a Camhead, the servo "beeps" if the cable adjustment is out of range.

                          https://www.youtube.com/watch?v=kECJwihAW6w

                          OnlineCasbar

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                            Reading this thread has jinxed my bike. It's started making a loud "screeching" noise when the ignition is turned on. Sound is coming from where the exhaust flap is, only makes it when hot which seems strange. No warning lights on the dash.


                            I'll get it booked in to be looked at and wait to be told "they all do that sir".


                            There is no out of range beep on the LCs. If its squeaking then its starting to bind. I had one set of headers on my 2014 changed because my flap was squeaking, they tried the "its still working", but I countered with, is it supposed to make a noise? The problem you may encounter is, if the flap hasn't partially or fully stuck, there will be no error code and on the 1250 you will have an engine warning light. But as long as you have plenty of warranty left, even if they just lube it, it will probably fail at some point :)