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[Webby the Bear]

Hi guys,

i got the above.... obviously when i get above 70mph it's on my friends' private track 

the shake is distinctly between the speeds of 70 and 85. before and after these speeds it settles down. i recently had my alignment done at WIM and i asked the guy... he said that will be to do with the wheels needing to be balanced.

i'm having 4 new tyres next month and will get the balancing done then but do we agree thats what it is? why particularly between those speeds?   

cheers guys 

[Elite Pete]

Do you feel it through the steering or the seat?

Its an anti speeding device

[Webby the Bear]

Do you feel it through the steering or the seat?

Its an anti speeding device

Haha or is it a speed encourager as it goes away after 85 

The vibration is both through steering wheel and the whole cabin including the seats

[Andy B]

Front wheels out of balance usually shows itself as vibration through the steering wheel at whatever speed, rear wheels out of balance usually shows itself as vibration throughout the whole car. The speed it happens at is purely by how much out of balnce the wheels are. An old Astra of mine shook itself nearly to bits at around 65, wheel balancing sorted it! 

[Webby the Bear]

Front wheels out of balance usually shows itself as vibration through the steering wheel at whatever speed, rear wheels out of balance usually shows itself as vibration throughout the whole car. The speed it happens at is purely by how much out of balnce the wheels are. An old Astra of mine shook itself nearly to bits at around 65, wheel balancing sorted it! 

thats what i was hoping as when i get the tyres done they do free wheel balancing... cheers guys 

[twiglet]

It's certainly possible for a wheel that's out of balance to causing a vibration between certain speeds.  Easy and cheap way to prove it would be to swap the wheels front to rear, and see if it goes away. 

Could also be a buckled wheel...

Edit: Must type quicker! 

[Andy B]

......
thats what i was hoping as when i get the tyres done they do free wheel balancing... cheers guys 

I always insist on stick on weights on the inside. Clip on weights just bugger up the paint on the edge of the wheel where salt sits ..... & they look sh1te. 

[Webby the Bear]

cheers guys. really appreciated

on an aside, found this cool video tutorial...... looks very easy with the right equipment 

http://www.youtube.com/watch?v=eP05hnYhA88

[PhilRich]

Do you feel it through the steering or the seat?

Its an anti speeding device

Haha or is it a speed encourager as it goes away after 85 

The vibration is both through steering wheel and the whole cabin including the seats

Thats the warning system saying you're at V1 Webby, slow down to stay down or foot down to take off!

[freecall666]

see if they have these in stock 
http://www.youtube.com/watch?v=ullnFQD4F1I&feature=related

[Webby the Bear]

LOL! Cheers lads.

I wonder.... is it possible to balance your wheels without the funky machine?

[Webby the Bear]

scrap that just found the how to....

http://www.ehow.com/how_4780264_balance-car-tires.html

anyone do this themselves out of interest?

[Sir Tigger KC]

I had this problem a few years ago, and it was just after buying some new tyres! Took it back and they rebalanced all the wheels, but it made no difference....    Turned out the new tyre were out of shape!!    After a 'few' arguments they reluctantly replaced them and all was well!! 

[Entwood]

That method is "static" wheel balancing and is very inaccurate ... "dynamic" balancing which is done by rotating the wheel at speed is far better as it more closely follows the wheels actual performance.

The best method of all , "dynamic on car" is very difficult (and expensive) to find these days, although back in the 60's & 70's was easily available, it takes into account any imbalance in the hub (in those days only posh folks had disc brakes), disc and even the drive shaft to an extent.

I used to have this done regularly on the rally car but would not pay for it on a general use vehicle, but I would not drop down to static ... a normal dynamic balance is only a fiver or so ... less than a gallon of fuel per wheel ..

[Webby the Bear]

how do they get imbalaned? i actually only need one tyre (legally) so should i get one tyre and just that wheel balanced or 1 tyre and all wheels balanced?