Tyre balancing issue?

[bcadou]

Hello

Yesterday I replaced the 4 old road biased tyre of a Mitsubishi Pinin with 4 new agressive mud tyres (these: https://www.insaturbo.com/copia-de-k2-mt-1 )

When I drive above 40mph, the steering wheel starts to shake a bit, and the shaking increase with speed and being strong at 70mph.

Do you think this is due to the tyre fitter doing a poor job balancing the tyres? or just agressive mud tyres "all do that" compared to regular road tyres?

That tyre fitter say they always balance the tyres, and I did see the guy putting each wheel on a machine like this: https://www.tyrebaydirect.com/wp-content/uploads/P... but I didn't actually see him putting any weights on the rim, but I was not paying attention a lot tbh.

thank you

Edited by bcadou on Sunday 19th September 08:58

[Mave]

I'm guessing they're not balanced properly.

[bcadou]

thanks Mave. I'll go ask the tyre fitter to do better job. That being said, I am concerned he might just not be good enough and I'd save time (but lose money) by going to another shop and ask them to balance.

Any thoughts? how are the big chains doing on that btw, like ATS? Is that a safer better or not really?

thanks

[Stewss4]

Hi you have insa turbo tyres. These are a remould off-road tyre that take a lot of weight to balance. And a pig to balance. I would not use these on a road car.

[bcadou]

Oh yes i plan to only use them off road but i do need to get to the green lane or the pay and play site and that involves some motorway driving to get there.

But i hear you, a pig to balance, will try to do anyway. Thanks for feedback

[Matt_E_Mulsion]

Can you swap the wheels from front to rear? My money would be on a faulty remould tyre.

[bcadou]

yes I can, will try that too, thanks.

[Flibble]

I swapped from road tyres to all terrains and have a similar issue. It comes and goes though which makes me think it should be possible to get them running smooth all the time.

[bcadou]

yeah i am tempted to use balancing beans, from Dynabeads, should help in our situations

[Flibble]

I am going to take mine to get the alignment checked I think, I might ask them to check balance while they're at it.

[bcadou]

update: so I put balancing beads from Dynabeads in the tyres and it didn't really help, steering is still very shaky at motorway speeds.

At this stage, i am unsure what else I can do, except replacing those brand new M/T tyres with less agressive A/T tyres...

Should I remove the old balancing weights from the wheels (some might be from previous tyres) now that the beads are in?

Do you know any balancing specialist (maybe 4x4 specialist) that will take the time and add enough weight to balance those tyres?

thanks

[Hammer67]

bcadou said:

update:

Should I remove the old balancing weights from the wheels

Take it back to the place that fitted the tyres and complain, first job when fitting new tyres is to remove all the old weights from the wheels.

If the weights are the knock on variety leaving them on the rims when fitting new tyres will damage the beads of the new tyres.

[Smint]

Can you jack the motor up and spin the wheels in place in safety, chances are you'll see the issue, possibly a bad casing that's not round, only needs one.

[bcadou]

Hammer67:

thank you, but unfortunatelly i can't do that (too far).

Questions:
Can I remove the sticky weights with a plier?
Can I remove the clipped on weights with a plier?

[Smint]

Smint said:

Can you jack the motor up and spin the wheels in place in safety, chances are you'll see the issue, possibly a bad casing that's not round, only needs one.

edit, ah didn't see previously, old weights not removed, schoolboy error, if the fitter hasn't see the old weights then equally possible he hasn't noticed an out of true tyre.

[bcadou]

Smint said:

edit, ah didn't see previously, old weights not removed, schoolboy error, if the fitter hasn't see the old weights then equally possible he hasn't noticed an out of true tyre.

thank you, you mean a tyre that wasn't manufactured properly? (sorry English not 1st language)

[Smint]

bcadou said:

thank you, you mean a tyre that wasn't manufactured properly? (sorry English not 1st language)

Its a remould on an old casing, whilst they inspect the casings and skim off the old tread they won't know what sort of life the tyre lived previously, it could have had a hell of whack up a kerb which weakened some sidewall cords, these things do happen, a remould is only as good as the casing its applied to.

From the sounds of it though, your first port of call is back to the fitter, whoi should have removed all old balance weights before fitting...not only for balancing issues but its happened before that clip on weight on the bead not removed before fitting a tyre has ended up inside the new tyre, removed weights this can't happen.

[bcadou]

thank you for the detailed reply

[bcadou]

now that you say that and I think of it, i did notice something:

when I jacked the rear left hand side wheel by a few millimetres off the ground, I did notice I could freely turn the wheel until a point where the rubber touched the ground again. I thought this was normal irregularities of the tyre mud knobs, and that no mud tyre is perfectly round. But it might also be that remould tyre not being round enough...

[Hammer67]

bcadou said:

Hammer67:

thank you, but unfortunatelly i can't do that (too far).

Questions:
Can I remove the sticky weights with a plier?
Can I remove the clipped on weights with a plier?

In that case, phone them up, tell them you are going to get the tyres properly balanced at a local shop and that you expect them to pay the bill. Take photos of the old weights on the rims and use this as evidence of improper fitting.

Then go to a good known local shop, explain your problems and ask them to very carefully rebalance the wheels. Insa remoulds as previously mentioned are notoriously hard to balance.