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Thread: Valve adjustment

  1. #1
    Senior Member Mkfchef's Avatar
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    Valve adjustment

    My 2014 Tw has approx 1000 miles on it. I finally got around to doing the 1st valve adjustment/check on it yesterday.

    I was surprised to find that ex and in were both perfectly within spec. ( 3 on the in and 5 on the ex. )

    Has anyone else found this to be the case? Is it normal or common to require no adjustment?

    Just curious.....
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  2. #2
    Senior Member admiral's Avatar
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    Hopefully many will chime in to get a good consensus. I suspect the answers will vary.

    Here's my experience: On my 2005 TW, I only had to adjust 1 valve one time and that was it over the 13,000 + miles I had on it. Because of a mechanical issue not related to the valves, I put in a replacement engine and didn't have to adjust the valves in it at all. Checked often on both with just the one adjustment.

    On my new 2015 TW, I checked the valves last week. Had to adjust both. So, the jury is out if this will be common on this engine or not. However, I would say in my case with my previous TW engine(s), it was not common.
    Last edited by admiral; 07-22-2015 at 08:12 AM.
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  3. #3
    Senior Member Fred's Avatar
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    My valve lash stayed within specifications until a very minor adjustment was made ~5,000 miles.
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  5. #4
    Senior Member RockyTFS's Avatar
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    I did mine at about 800 miles and although they were almost within spec, I put them back in the middle of the range. Did them again at about 4,000 and 10,000, just to get them back in the middle.
    Rocky
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    2014 BMW R1200GS LC

  6. #5
    Senior Member Welder's Avatar
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    Neither of my 2015s required any adjustment at 600 miles. One was at the max (loose) on both valves but still in spec.

    Admiral, on your 2015 were the valves loose or tight?

  7. #6
    Senior Member admiral's Avatar
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    Quote Originally Posted by Welder View Post
    Neither of my 2015s required any adjustment at 600 miles. One was at the max (loose) on both valves but still in spec.

    Admiral, on your 2015 were the valves loose or tight?
    Both were tight.
    Hidden Content A ride in the woods helps me relax and release tension. The fact I'm dragging a body should be entirely irrelevant?

  8. #7
    Senior Member RockyTFS's Avatar
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    In theory, the clearances will get tighter as the valve face and valve seat wear in, reducing clearances, but the valve tip and rocker arm will also wear in, increasing clearances. The two rarely wear at the same rate, which is why some engines show less valve clearance and some show more as time goes by. Other factors will affect this, so even if your valve clearance in a specific engine may get tighter over time does not mean that it always will.

    Which is why all manuals specify a periodic check! I've seen it go both ways.
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    Rocky
    2018 TW200
    2014 BMW R1200GS LC

  9. #8
    Senior Member will's Avatar
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    What happens when it gets too tight? When i adjusted my used tw that i bought. The intake valve (i think) was a little tight. Still a very small gap but it was getting close to dangerous id say.. Any thing i should watch? I've barely ridden it since then.

  10. #9
    Senior Member elime's Avatar
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    Quote Originally Posted by RockyTFS View Post
    ..........................the valve tip...............will also wear..................
    P3040830.JPG

    And the little adjusting screw:

    P3260911a.jpg
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    Long live the internal combustion engine!

  11. #10
    Senior Member elime's Avatar
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    And just for the fun of it -- old vs. new:

    P3260910a.jpg VS P3260915a.jpg

    Pliers in picture to get the stupid camera to focus on valve tip.



    Last edited by elime; 07-27-2015 at 07:00 AM.
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    Long live the internal combustion engine!

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