Steering vibration with MT tyres

[fish]

Just fitted my new 235/70 R16 Insa Dakar tyres replacing my rather worn ATs, I expected to feel bit of a differance on the black stuff but not a steering wobble at about 50mph, havent checked pressures yet, could be wrong, but not sure what MTs should be inflated to for the road (says max pressure 36psi on tyre wall)

Any ideas or avice?

[Rangie3.0LtrDan]

what about balancing, front propshaft uj's and that kinda stuff?

[seph234]

yes id get your new tyres checked for balance did you get them balanced when you had them fitted.  joe

[Bulli]

Sounds like they are out of balance to me....some are very hard to get balanced correctly.

[Budgie]

If you've still got a wobble after check the wheel balance then start looking at the wheel bearings, swivle bearing pre-load and trackrod ends etc as the new tyres may be showing ware in other parts that the old tyres balanced out.  :?  

[LCW11]

ITS A FACT..REMOLD MT'S are a bitch to balance is some cases impossible. its some thing you just have to live with, i THINK that good branded MT's such as BFG and GOODYEAR WRANGLERS are much easyer to blalance so if youve never used remold MT's before you probably wouldn't know this.

hope that helps ....LEE

[fish]

The wheels/tyres came from nene overland and look like they have been balanced as balancing weights have been fitted to the rims, I will call them and check what they did. Still its snowing heavily now so when I go out to play wont be doing more than 50! Thanks for the pointers given will look into them. I know my bearings are set up OK as just fitted new discs, but track rod ends could be worn and causing the wobble.

[hobbit]

You can get a substance to go in the tyres that will balance the wheels when travelling at speed, some sort of beads I believe

When you are at speed, they spread out by centrifugal force and balance the wheels

http://www.innovativebalancing.com/

[beast5680]

i have colway mt,s fitted not balanced at all and i dont suffer any vibration or wheel wobble at all at any speed :?

[petergalileo]

I know this sounds daft, but you did check the wheel nuts were really nice and tight ?

I changed rear shocks and front discs but neglected to fully tighten the wheels when they were on the floor, I tightened them while off the ground.

I suffered wheel wobble at speed and steering was a little vague but I blamed it on the replacement steering box.  I am glad I rechecked the wheel nuts in the end !

[Wanderer]

My Technic Amazons were never balanced and had never caused me a problem.

I've got brand new BFG MTs and they've got weights galore.

It's luck of the draw.

[td5disco]

Same here with the Techics and BFG MT's. Technics - very easy to balance, BFG lots of weights added, and on one we gave up (stuck on the back) as it was wanting 300g plus  :shock:

[Range Rover Blues]

I've found the same with balancing, the remoulds were done by Buxton 4x4 and never gave me a problem, my BFG MT were starting to vibrate and when I had them checked they were all out of balance, trouble is I don't think they had mounted them the same way on the machine :shock:

Firstly, make sure the guy balancing it knows how to deal with 4x4s, many places only know how to charge more but Land Rover alloys should be mounted on a mandrel on the inside of the wheel, not by a collet through the centre!

Secondly, 36psi? are you nuts? 30psi max for the front.  Remoulds more than anything else have a tendancy to go "square" when inflated, over inflation just makes it worse.  As it is you'll feel every knobble in the tread at low speeds.

[rollazuki]

Swap front to rear, give it a try, get em rebalanced, give that a try.
If you get em balanced, try to watch them do it, then maybe youll see if the tyre has excessive run-out(ie wobbles when it spins up)

[96Disco]

I have remould MTs on my car that have not been balanced and which I inflate to 30psi at the front and 36psi at the rear - I don't have any problems with vibration.  I have found that tyre fitters consistently over-inflate tyres (mine came from the supplier on new rims and were all at 40psi) and this can certainly cause vibration.

All the best,


Phil.

[Range Rover Blues]

One reason that tyre fitters always over-inflate is the pressure required to fit the tyres to the rims, plus with a new tyre it helps to seat the rubber into the rim and make it seal. It's also easier to let one down than pump it up.  Moral is to always check with a reliable guage.