Results 1 to 4 of 4

Thread: Flat tappet engine on my 2007?

  1. #1
    Registered User hjsbmw's Avatar
    Join Date
    May 2009
    Location
    RTP, NC
    Posts
    157

    Flat tappet engine on my 2007?

    Are flat tappets what my 07 R has?
    Harald
    2007 R1200R

  2. #2
    rabid reader dbrick's Avatar
    Join Date
    Apr 2003
    Location
    Santa Cruz CA
    Posts
    1,781
    Your Hexhead has valves that adjust with a screw-thread adjuster built into the valve gear. That is, the correct clearances are set using open-end metric wrenches to loosen and tighten the locknuts, feeler gauges to measure, and your fingers to turn the adjuster. See: http://www.bmwmoa.org/forum/showthre...ment-All-Years

    Later Camhead models (on the R, from 2010) require the use of a shim (BMW-speak: "semi-sphere") available in graduated sizes to obtain the correct clearance. See: http://www.bmwmoa.org/forum/showthre...ment-Procedure
    David Brick
    Santa Cruz CA
    2007 R1200R

  3. #3
    Benchwrenching PGlaves's Avatar
    Join Date
    Oct 2003
    Location
    "Big Bend" TX
    Posts
    8,780
    And, yes, your bike has what would be considered "flat" tappets. The cam follower has a flat face which slides on the camshaft lobe, contrasted to a roller follower which rolls along the face of the cam.

    And, guessing at the root of the question, thus the emphasis on sufficient anti-wear, anti scuffing additive in oils for BMW motorcycles.
    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://www.bigbend.net/users/glaves

  4. #4
    Registered User hjsbmw's Avatar
    Join Date
    May 2009
    Location
    RTP, NC
    Posts
    157
    Quote Originally Posted by PGLAVES View Post
    And, yes, your bike has what would be considered "flat" tappets. The cam follower has a flat face which slides on the camshaft lobe, contrasted to a roller follower which rolls along the face of the cam.

    And, guessing at the root of the question, thus the emphasis on sufficient anti-wear, anti scuffing additive in oils for BMW motorcycles.
    Thanks, and yes, the root of the question is the information mentioned in the recent oil article in the ON Magazine that stressed ZDDP content for the flat tappet design.
    Harald
    2007 R1200R

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •