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Thread: rattle still present after replacing vanos seals AND rattle repair kit .....

  1. #11
    Join Date
    Mar 2011
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    East Greenwich, RI
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    87
    Found out it was a loose bracket connected to the exhaust manifold head shield after doing my headers. lol vanos is fine.

  2. #12
    Join Date
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    Quote Originally Posted by Jesse M View Post
    Found out it was a loose bracket connected to the exhaust manifold head shield after doing my headers. lol vanos is fine.
    Hmmm. Gonna check this myself.

    Not that I did headers- but still gonna check around for other culprits.

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  3. #13
    Join Date
    Nov 2017
    Location
    Seattle
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    I am getting the rattling sound only on cold start up. I actually never stood in front of the engine to pinpoint the source of the sound, but it is also only for a half second and sounds like 'marbles in a tin can'. Can i be pretty sure the vanos is the culprit?

  4. #14
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    May 2011
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    If you google e46 VANOS rattle, you see some YouTube videos, compare your sound with them...
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  5. #15
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    Nov 2017
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    Quote Originally Posted by Sockethead View Post
    If you google e46 VANOS rattle, you see some YouTube videos, compare your sound with them...
    You know, i'll be honest, it sounds different. I should have recorded the sound, but it is just a very sharp, loud, half second rattle on cold start (like 4 hours).

    https://www.youtube.com/watch?v=29fdzGxsBr0
    Sounds exactly like this, but I don't know if it is truly the vanos.

    Hot/warm starts don't have even a hint of it. Now I am thinking, should i even bother sending my unit to dr. vanos, if it may not even be the source of the sound. The only problem is, I don't want to put the engine back together, diagnose the sound, find out it IS the vanos, and have to tear open my valve cover again to take the vanos out.
    Last edited by papa_g; 11-13-2017 at 12:33 PM.

  6. #16
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    Nov 2014
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    Portland, OR
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    Personally, that sounds like stuck valves that then get moving again, but I'm not particularly well versed in diagnosing abnormal engine sounds

  7. #17
    Join Date
    Jan 2013
    Location
    Central California
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    I would not mess with the vanos unless you are absolutely sure that is what is causing the noise. Could it be something like this:
    http://www.bimmerfest.com/forums/showthread.php?t=76452

  8. #18
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    Quote Originally Posted by BMWCurves View Post
    Personally, that sounds like stuck valves that then get moving again, but I'm not particularly well versed in diagnosing abnormal engine sounds
    If it is indeed what you are saying, do you know what the fix is? Maybe I will hold off on the vanos for now. I will do a couple cycles of drain and fill with new oil, and who knows, maybe some new oil will fix it.

  9. #19
    Join Date
    Jan 2013
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    Central California
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    Quote Originally Posted by papa_g View Post
    If it is indeed what you are saying, do you know what the fix is? Maybe I will hold off on the vanos for now. I will do a couple cycles of drain and fill with new oil, and who knows, maybe some new oil will fix it.
    Try it with Shell Rotella T6 oil. It has better cleansing agents and may help out sticky lifters.

  10. #20
    Join Date
    Nov 2017
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    Seattle
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    Quote Originally Posted by Dave1027 View Post
    Try it with Shell Rotella T6 oil. It has better cleansing agents and may help out sticky lifters.
    Ok what do you think of this hypothetical scenario:
    I refill with Shell Rotella T6 5W-40, run it in the car for a week, drain and fill with the Pentosin 5w-30 LL-01 i have laying around.

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