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Thread: typical valve sound coming from 4cyl motors

  1. #26
    yea mine tends to do it all all temperatures under accerleration..

    not all the time but enough to hear it when the stereo is off.

    So can you fix it by replacing lifters can you?
    Diamonds & Wood

    My merc http://www.club202.com/forums/showthread.php?s=&threadid=9323

  2. #27
    OG Moderator
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    Did anyone ever replace their lifters and find out if the replacement made a difference?
    1999 C230 Kompressor

  3. #28
    Moderator Pagz's Avatar
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    Mines always been noisey(tapping sounds)...and the lifter pistons are in great shape.

    using a thinner oil could make the noise louder...as the lifters are self adjusting,and use oil pressure to take up the difference...if they are worn then they will not retain the oil they need to keep tight clearance between valve and cam...
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  4. #29
    Senior Member
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    Originally posted by 23K
    Mines always been noisey(tapping sounds)...and the lifter pistons are in great shape.

    using a thinner oil could make the noise louder...as the lifters are self adjusting,and use oil pressure to take up the difference...if they are worn then they will not retain the oil they need to keep tight clearance between valve and cam...
    hm must of missed this thread, Im in the same boat as most of you.. I suspect the ex owner had her nice and warmed up when I came to buy it, so I never noticed it ah that age old trick, Would "Gear" / Diff oil do the same trick as the ATF for the sticky lifter bussiness?

    the thing is though, my cars oil looks like new, the 4 times ive checked it, its always a nice and golden.
    Standard 1999 C230K Sport
    Mileage: 120K
    Tyres: Pirelli P6000

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