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Thread: Post here if you've had prematurely worn cam lobe(s) in your wethead

  1. #196
    Thanks. I actually have a sample jar from them already I can use. Since I wasnít riding I cleaned out a few drawers in my garage and found it.

  2. #197
    Registered User dlong0609's Avatar
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    Someone explained that any metal coming off the cams would first be washed into the pan and then be carried through the oil filter and retained there. I sure hope that's true.

  3. #198
    Registered User Rinty's Avatar
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    My plan is to have the cams inspected during each annual service, by my indie.
    Rinty

  4. #199
    Registered User Sticky Throttle's Avatar
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    R1250 cam lobe problems

    Anybody know of any soft cam lobe problems with the R1250 shiftcam engine?
    2014 BMW R1200GS
    2020 BMW S1000XR
    2020 BMW R1250RS

  5. #200
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    Quote Originally Posted by Sticky Throttle View Post
    Anybody know of any soft cam lobe problems with the R1250 shiftcam engine?
    See posts ## 72, 82, 164 to this thread.
    2013 F700GS

  6. #201
    Registered User Sticky Throttle's Avatar
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    Quote Originally Posted by vark View Post
    See posts ## 72, 82, 164 to this thread.
    Excellent. Thanks.

    #166 was revealing. I have identical noise on 2020 RS with 3150 mi. Began less than 200 mi ago.
    2014 BMW R1200GS
    2020 BMW S1000XR
    2020 BMW R1250RS

  7. #202
    My 2018 r1200gsa was Just fixed under warranty for the second time. The first time at 12k miles they replaced the left side cams. This time at 28k miles they replaced both sides. This is pretty frustrating to say the least. The good news is that it was only in the shop 5 days for the repair. My service rep said their is a service bulletin on this issue. Letís hope itís been addressed going forward. I highly recommend carefully checking your cam wear at each valve check and possible each oil change. For sure do it before your warranty runs out.

  8. #203
    Registered User pappy35's Avatar
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    Quote Originally Posted by Sticky Throttle View Post
    Excellent. Thanks.

    #166 was revealing. I have identical noise on 2020 RS with 3150 mi. Began less than 200 mi ago.
    Pop the valve covers off and inspect the cams with bright light. Easy peasy. Knowing this seems like a widespread issue I know I'd be in there every couple of thousand miles if I had a wethead. Thankfully this doesn't seem to be an issue with the Camheads. BMW must have switched suppliers or changed the specs (or both).
    '13 R1200RT 90th Anniversary Edition

  9. #204
    I am just finishing up the first 12k service on my 1250RT. All the cam lobs on mine looked and felt perfect. Clearances were all on the slightly on the loose side, but well within spec. Mine was one of the first RTs in the US and was built 2018-09-26. Really sad that I've had it for nearly two years and only have 12,471 on it. It would interesting to know what the build dates on the 1250s with the bad cams are.
    Scott Taranovich
    McKinney, Texas
    2019 R1250RT

  10. #205
    Registered User alegerlotz's Avatar
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    Quote Originally Posted by taran1900 View Post
    I am just finishing up the first 12k service on my 1250RT. All the cam lobs on mine looked and felt perfect. Clearances were all on the slightly on the loose side, but well within spec. Mine was one of the first RTs in the US and was built 2018-09-26. Really sad that I've had it for nearly two years and only have 12,471 on it. It would interesting to know what the build dates on the 1250s with the bad cams are.
    I think that the tolerances tend to tighten over time (as the valves wear) so being on the loose side of spec is probably good at this point.
    2016 R1200RT
    2007 KTM 450 XC-W (10/17 - 5/18)
    2005 R1200RT (2/2015 - 12/2016)
    1985 Yamaha XJ 700 Maxim (7/1989 - 9/1991)

  11. #206
    A reminder: Cam lobe wear almost never affects the clearance at the back side of the lobe where measured for valve adjustment. There is under almost all conditions no spring pressure at the back side of the lobe. Cam lobe wear needs to be visually identified on the nose of the lobe where spring pressures are greatest.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  12. #207
    Registered User Sticky Throttle's Avatar
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    Here's my 2020 RS. 3200 miles. View the tape at the 40 sec mark. https://www.youtube.com/watch?v=q4KL_29qYUM
    2014 BMW R1200GS
    2020 BMW S1000XR
    2020 BMW R1250RS

  13. #208
    Registered User pappy35's Avatar
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    Quote Originally Posted by Sticky Throttle View Post
    Here's my 2020 RS. 3200 miles. View the tape at the 40 sec mark. https://www.youtube.com/watch?v=q4KL_29qYUM
    Obviously a big difference but have you popped the covers off yet (you need to inspect both sides if this is a concern for you)? That's the only way to know if your lobes are worn. It's very easy to do and very hard to screw up.
    '13 R1200RT 90th Anniversary Edition

  14. #209
    Registered User alegerlotz's Avatar
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    Quote Originally Posted by pappy35 View Post
    Obviously a big difference but have you popped the covers off yet (you need to inspect both sides if this is a concern for you)? That's the only way to know if your lobes are worn. It's very easy to do and very hard to screw up.
    The most likely way to screw it up is to over tighten the covers when you reinstall them. It really is a simple job.
    2016 R1200RT
    2007 KTM 450 XC-W (10/17 - 5/18)
    2005 R1200RT (2/2015 - 12/2016)
    1985 Yamaha XJ 700 Maxim (7/1989 - 9/1991)

  15. #210
    Quote Originally Posted by PGlaves View Post
    A reminder: Cam lobe wear almost never affects the clearance at the back side of the lobe where measured for valve adjustment. There is under almost all conditions no spring pressure at the back side of the lobe. Cam lobe wear needs to be visually identified on the nose of the lobe where spring pressures are greatest.
    I checked for that on the top of all the lobes. All good for now. This is something I'll probably look at every 6k. Popping the valve covers off the 1250 is super easy. From what I've read on this issue, they have been a number of instances where there was no wear and then all of a sudden, there's huge amount of wear. It's a good idea to watch it closely.
    Scott Taranovich
    McKinney, Texas
    2019 R1250RT

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