Page 2 of 12 FirstFirst 1234 ... LastLast
Results 11 to 20 of 112

Thread: Wheel balancing - dynamic balancing weights

  1. #11
    Join Date
    Nov 2007
    Location
    BANCHORY
    Posts
    3,301
    Success.

    Just back after road trials with my Kangoo Trekka. I added 88 grams of 4.5 mm steel BBs to each front wheel. This car had pronounced steering wheel vibration at 60 mph. Now completely gone.
    Drives a Smart Cdi - 65 to 85 MPG

  2. #12
    Join Date
    Jan 2015
    Location
    Devon
    Posts
    57
    The technique is known and proven to work; you can buy Dyna beads for this purpose, but they are much smaller and not made from steel. Consider what happens at lower speeds when the BBs do not have sufficient velocity to stay attached to the tyre for the full rotation, they will drop down and clatter against the wheel. Not so bad if you have steel wheels I suppose, apart from sounding like a pair of maracas.

    I think I'll stick with getting the tyres properly balanced to start with.

  3. #13
    Join Date
    Nov 2007
    Location
    BANCHORY
    Posts
    3,301
    I think the only reason why Dynabeads are smaller is for them to fit through the filler valve. If they did not, only men of steel like me owning a tyre changer would buy them.
    Drives a Smart Cdi - 65 to 85 MPG

  4. #14
    Join Date
    Apr 2009
    Location
    Ecosse
    Posts
    3,604
    Quote Originally Posted by mikerj View Post
    Consider what happens at lower speeds when the BBs do not have sufficient velocity to stay attached to the tyre for the full rotation, they will drop down and clatter against the wheel. Not so bad if you have steel wheels I suppose, apart from sounding like a pair of maracas.
    .
    The speed the MOT tester spins the wheel listening for roughness in wheel bearings?.....

  5. #15
    Join Date
    Nov 2007
    Location
    BANCHORY
    Posts
    3,301
    Quote Originally Posted by pinger View Post
    The speed the MOT tester spins the wheel listening for roughness in wheel bearings?.....
    No problem as I am fortunate enought to own special MOT wheels.
    Drives a Smart Cdi - 65 to 85 MPG

  6. #16
    Join Date
    Nov 2004
    Location
    North Weald, Essex
    Posts
    109
    This reminds me of Centramatic Automatic Wheel Balancers that are used on trucks in the States.

    They use steel balls & fluid inside a circular tube that is sandwiched between the wheel & hub.

  7. #17
    Join Date
    Mar 2012
    Location
    Burnley
    Posts
    1,383
    I think you should live in a proper place where the council take your crap away rather than having to hide it in unusual places.

  8. #18
    Join Date
    Nov 2007
    Location
    BANCHORY
    Posts
    3,301
    This is single plain dynamic balancing so will therefore not work on wide and low profile tyres. Dynabead recommends balancing beads down to 70 profile tyres and only as "supplementary" balancing on lower than 70 profile tyres. I have now tested the steel BBs on the front wheels of my Smart 450. The tyres are 145/65-R15 so rather narrow for a 15" wheel. Found they work fine althought there is a strange kind of noise from them when proceeding at very slow speed.
    Drives a Smart Cdi - 65 to 85 MPG

  9. #19
    Join Date
    Apr 2009
    Location
    Ecosse
    Posts
    3,604
    I've no qualms here other than the choice of lead.
    Being soft it will eventually wear down to dust. Take care when it comes time to release air pressure.
    Acceptable for yourself doing your own maintenance and fitting/removal but not if such a wheel were presented to a commercial tyre fitter (who releases air pressure using the bead breaker). Exposing others to carcinogens just isn't acceptable.

    Small steel ball bearings are easily bought loose from cycle shops if any one else is tempted to try this.

  10. #20
    Join Date
    Nov 2007
    Location
    BANCHORY
    Posts
    3,301
    These are NOT lead shots but premium grade copper coated STEEL BBs 4.5 mm in diameter bought from Walmart somewhere in Houston, TX, the gun capital of our planet.
    Drives a Smart Cdi - 65 to 85 MPG

Posting Permissions

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