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Thread: what could possibly do this sound...

  1. #1
    Join Date
    Nov 2004
    Posts
    205

    Default what could possibly do this sound...

    there is this weird sound coming from the engine...

    it sounds like metal tapping against each other...
    it could be d valves needing adjustment...

    but the problem is that there are times when there
    is totally no tapping sound and everything works
    fine

    what the heck?

  2. #2
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,270

    Default

    Remove the valve cover and inspect the camshaft.

  3. #3
    Join Date
    Mar 2005
    Location
    Hockinson, Washington
    Posts
    2,499

    Default

    My engine is definitely louder when it is hot than when it is cool. Perhaps your problem is similar? Of course mine really isnt "tapping", its just louder overall. I know almost nothing about the inner workings of internal combustion engines, but possibly the vales could heat up and change size slightly, but enough to put them slightly out of spec? That is, if they were borderline to begin with. Again, my "noise" is probably entirely different from yours.
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

  4. #4
    Join Date
    Oct 2005
    Location
    Australia
    Posts
    227

    Default

    when do you hear the sound? Up the hill? When you push the car hard? When you're in 4th or 5th gear? Would you say the sound is more like clicking?? Has it been quieter before and grew louder or suddenly started?

    If you answer yes to most of this then its valves but maybe you only need higher grade fuel.

  5. #5
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,843

    Default

    with no clues there can only be obscure guessing.

    I guess that you have mice in your airbox with little tiny cymbals they ring when the air passes over their nice warm home.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  6. #6
    Join Date
    Mar 2005
    Location
    Long Beach, CA
    Posts
    2,563

    Default

    Quote Originally Posted by 632 Regal
    with no clues there can only be obscure guessing.

    I guess that you have mice in your airbox with little tiny cymbals they ring when the air passes over their nice warm home.
    LOL!!

    Ralph Mendoza Jr. - Long Beach, CA

  7. #7
    Join Date
    Jun 2005
    Location
    Cleveland, OH
    Posts
    1,279

    Default

    Quote Originally Posted by 632 Regal
    with no clues there can only be obscure guessing.

    I guess that you have mice in your airbox with little tiny cymbals they ring when the air passes over their nice warm home.
    Nahhh... it's thier little voices..... going "darn it's cold"
    If it cannot be fixed by the dremel or ducktape.. get out the sledge...
    --------------------------------------------------------------------
    I miss my e34

  8. #8
    Join Date
    May 2005
    Location
    central coast nsw au
    Posts
    1,221

    Default

    can i get replacement mice from bma or are my little cymbals just out of spec., and how to adjust this feature? i could only find oomph loompah skull bell housing specs in my bentley

  9. #9
    Join Date
    May 2004
    Location
    Minneapolis, MN
    Posts
    269

    Default

    talk to pat at bma. make sure you get only lemfoerder german speaking mice. any other nationality and their cymbals will wear out in less than 300 miles.
    -Pekka

  10. #10
    Join Date
    Mar 2005
    Location
    Long Beach, CA
    Posts
    2,563

    Default

    Quote Originally Posted by peks
    talk to pat at bma. make sure you get only lemfoerder german speaking mice. any other nationality and their cymbals will wear out in less than 300 miles.
    Look what Jeff started. LOL!!

    Ralph Mendoza Jr. - Long Beach, CA

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