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Thread: Speed Related Vibration Rumble Puzzle

  1. #11
    Join Date
    Nov 2007
    Location
    BANCHORY
    Posts
    3,301
    Add a set or two of EURO BRAKE brake pads and discs same time and perhaps some ball joints too.
    http://www.mister-auto.co.uk/en/brak...502223344.html

    Comes with a small tube is white silicone grease. Instructions says smear it to back of pads. I ignore that and use it to lube slide pins plus areas on caliper carrier where pads need to move as they wear.
    These are the best pads I've ever used on my Smart. Not much dust and very powerful brakes. I bought a whole lot of these when they very nearly half the current price.
    Drives a Smart Cdi - 65 to 85 MPG

  2. #12
    Join Date
    Nov 2007
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    Speed related vibration and rumble is possibly a combination of wheel unbalance and worn bearing. Could also be loose wheel bolts.
    Drives a Smart Cdi - 65 to 85 MPG

  3. #13
    Join Date
    Dec 2007
    Location
    London
    Posts
    377
    Quote Originally Posted by tolsen View Post
    Jack up a corner. Spin wheel and listen for rumble. Grab wheel and check for bearing play. Repeat on each wheel.
    Exactly what I have done, plus feel for any lack of smoothness when turning

    Also, there's no obvious change in the degree of noise/vibration when applying the brakes, or when cornering - very strange

    What I haven't done yet is try putting in neutral at 40mph to see if the noise/vibration abates
    Paul
    Pure 2000 W, LHD 599cc - Engine Rebuilt Feb 08 - sold
    Passion 2000 W, LHD 599cc - Engine Rebuilt Mar 09 - sold
    Passion 1998 T, LHD 599cc - Engine Rebuilt Apr 10 - sold
    Cabrio 2001 Y, LHD 599cc - Engine Rebuilt Jul 10 Replaced Oct 16

  4. #14
    Join Date
    Dec 2007
    Location
    London
    Posts
    377
    Quote Originally Posted by pinger View Post
    Link?
    https://www.ebay.co.uk/itm/151402613976

    https://www.ebay.co.uk/itm/151402577568

    CarSpares Direct, both with two year warranty
    Paul
    Pure 2000 W, LHD 599cc - Engine Rebuilt Feb 08 - sold
    Passion 2000 W, LHD 599cc - Engine Rebuilt Mar 09 - sold
    Passion 1998 T, LHD 599cc - Engine Rebuilt Apr 10 - sold
    Cabrio 2001 Y, LHD 599cc - Engine Rebuilt Jul 10 Replaced Oct 16

  5. #15
    Join Date
    Apr 2009
    Location
    Ecosse
    Posts
    3,604
    Thanks for the links TK and UK.


    Quote Originally Posted by UKKid35 View Post
    Also, there's no obvious change in the degree of noise/vibration when applying the brakes, or when cornering - very strange
    That is odd as mine just howls if I hit the brake pedal with any vigour - and ups the volume cornering also, more so on right handers. Suggesting NS but as it was replaced recently and I can only get a smidge of play present across the 3 and 9 o clock plane at the wheel, nothing at 12 and 6 o clock - not quite enough to establish it as the culprit as yet. Typical failing wheel bearing noise - howling at 35-55 mph, then quiet again above.
    Just back from a 100 miles of twisties and maybe the start of a 'long' brake pedal. I'll get the jack under it later this week and see what gives.

  6. #16
    Join Date
    Nov 2004
    Location
    North Weald, Essex
    Posts
    111
    Just a thought, could it be a drive shaft CV joint?

  7. #17
    Join Date
    Jan 2011
    Location
    uk
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    849
    Quote Originally Posted by Mr T View Post
    Just a thought, could it be a drive shaft CV joint?
    That was my thought too, that or the precursor to this:



    Fq101 just posted it on Facebook a couple of days ago, countershaft bearing failed and popped out to say hello
    You're so money supermarket and you don't even know it!

  8. #18
    Join Date
    Apr 2009
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    Ecosse
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    Quote Originally Posted by reinaldo_is_spam View Post
    That was my thought too, that or the precursor to this:



    Fq101 just posted it on Facebook a couple of days ago, countershaft bearing failed and popped out to say hello
    Because it was wearing its oil on the outside - a bit like Superman's pants.

  9. #19
    Join Date
    Dec 2007
    Location
    London
    Posts
    377
    Quote Originally Posted by reinaldo_is_spam View Post

    Fq101 just posted it on Facebook a couple of days ago, countershaft bearing failed and popped out to say hello
    A very unusual failure mode, and very little evidence of ATF spill
    Paul
    Pure 2000 W, LHD 599cc - Engine Rebuilt Feb 08 - sold
    Passion 2000 W, LHD 599cc - Engine Rebuilt Mar 09 - sold
    Passion 1998 T, LHD 599cc - Engine Rebuilt Apr 10 - sold
    Cabrio 2001 Y, LHD 599cc - Engine Rebuilt Jul 10 Replaced Oct 16

  10. #20
    Join Date
    Nov 2004
    Location
    North Weald, Essex
    Posts
    111
    I remember seeing a gearbox like that many years ago at Smart-Arse Design in Watford (remember them?).
    Rob (S2smart) told me it was out of a Diesel & was the second one he had replaced like it.

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