scalloped tyres

[fjear]

Hi All,

just came back from a 80k service to be told all my tyres are scalloped even though they are barely 5 months old. my steering is all over the place.

What could be causing this? any recommendations on what to do to prevent it?

Also can anyone point me to a tyre outlet (melb) that sells good cheap tyres, im looking at the re001 or c.s drive yokohamas in 225 45 17


Thanks

[DLO01]

Wheel alligment, plain and simple. :thumbsup:

[aaronng]

Agreed. Get a wheel alignment now.

[fjear]

thing is i had a wheel alignment straight after the tyres were put on.

could it be my shocks/suspension? should i get em checked?

[DLO01]

5 months, how many Km's?

I'd get another wheel aligment done. Forget the Kmarts, beaureparies etc. Go to a specialist suspension/wheel alligner.

Is the Scolloping even all around the tyre? If so I would 'not' put it down to shocks/suspension.

If its in random spots around the tyre then yes and it could be shocks, wheel balancing as well.

Scolloped/feathered tyres are result of inproper Toe. Excessive toe-in causes feathering of the outside of the tyre and excessive toe-out causes feathering on the insides. Its where there is a sort of high to low spot on the inside or outside rubber blocks.

See here as well:
http://www.toyo.com.au/tech_info9p1.htm

[aaronng]

thing is i had a wheel alignment straight after the tyres were put on.

could it be my shocks/suspension? should i get em checked?

What were the wheel alignment readings when you got that alignment done?

Another thing to check if you are missing any tyre weights, or if your suspension bushes are worn.

[fjear]

5 months, how many Km's?

I'd get another wheel aligment done. Forget the Kmarts, beaureparies etc. Go to a specialist suspension/wheel alligner.

Is the Scolloping even all around the tyre? If so I would 'not' put it down to shocks/suspension.

If its in random spots around the tyre then yes and it could be shocks, wheel balancing as well.

Scolloped/feathered tyres are result of inproper Toe. Excessive toe-in causes feathering of the outside of the tyre and excessive toe-out causes feathering on the insides. Its where there is a sort of high to low spot on the inside or outside rubber blocks.

See here as well:
http://www.toyo.com.au/tech_info9p1.htm


not sure what scalloping looks like on the tyre.

should i take it to pedders for suspension check/wheel alignment?

im just worried they gonna try sell me suspension parts i don't need being a suspension specialist and all.

is there a way i can determine if this is simply a wheel alignment issue? or should i trust their word.

and if pedders isnt reputable can someone point me in the right direction.


Thanks

[aaronng]

not sure what scalloping looks like on the tyre.

should i take it to pedders for suspension check/wheel alignment?

im just worried they gonna try sell me suspension parts i don't need being a suspension specialist and all.

is there a way i can determine if this is simply a wheel alignment issue? or should i trust their word.

and if pedders isnt reputable can someone point me in the right direction.


Thanks
Go to a Bridgestone tyre centre. Just don't let them persuade you that you need a new set of tyres.

[chrome]

Some tyres due to thread design is more susceptible to scalloping on the Accords and Euros. The rears tend to scallop because of the negative camber. Tyres with large aggressive blocks on the edges scallop more, where alternate blocks wear quicker than it's neighbour and cause a harmonic wop-wop-wop noise when driving.

Frequent tyre rotation (every 10K kms) and correct alignment numbers will usually prevent scalloping to a large degree.

[Type R Positive]

thing is i had a wheel alignment straight after the tyres were put on.

could it be my shocks/suspension? should i get em checked?
I had a good chat to a manager at pedders when I went there last. He said allignment should be checked every 10k kms. I watched him do the allignment, pretty interesting. Every time I have had mine done, it's been out.

[fjear]

Go to a Bridgestone tyre centre. Just don't let them persuade you that you need a new set of tyres.

can i ask why bridgestone in particular?

will bridgestone be able to give me definite info on whether its my suspension causing it?

[aaronng]

can i ask why bridgestone in particular?

will bridgestone be able to give me definite info on whether its my suspension causing it?

Because so far I've found the new Bridgestone Tyre Centres to be pretty good with alignment. And they don't try to sell you suspension parts to fix your alignment. :)

Depends on the mechanic doing the alignment but you can ask the question about your uneven tyre wear and they can tell you what they think is causing it.

[fjear]

Because so far I've found the new Bridgestone Tyre Centres to be pretty good with alignment. And they don't try to sell you suspension parts to fix your alignment. :)

Depends on the mechanic doing the alignment but you can ask the question about your uneven tyre wear and they can tell you what they think is causing it.


ahh great point :)

do you think i should take it into pedders after i get new tyres and wheel alignment and ask to check to see if anythings wrong?

im just worried ill end up forkin a grand for new tyres and then even after an allignment it will start scalloping again..

[aaronng]

ahh great point :)

do you think i should take it into pedders after i get new tyres and wheel alignment and ask to check to see if anythings wrong?

im just worried ill end up forkin a grand for new tyres and then even after an allignment it will start scalloping again..

Just get an alignment at Bridgestone now, ask for the alignment printout and ask them if there is anything abnormal that would cause the tyre wear.

Don't bring it to Pedder's yet and don't buy new tyres yet.

Are your tyres asymmetric or directional? I would consider rotating the tyres and also remounting the tyres left to right if they are not asymmetric before buying new tyres if the tread on the rest of the tyre is ok. Cost for remounting and rebalancing should be about $30-40 per tyre.

[fjear]

Just get an alignment at Bridgestone now, ask for the alignment printout and ask them if there is anything abnormal that would cause the tyre wear.

Don't bring it to Pedder's yet and don't buy new tyres yet.

Are your tyres asymmetric or directional? I would consider rotating the tyres and also remounting the tyres left to right if they are not asymmetric before buying new tyres if the tread on the rest of the tyre is ok. Cost for remounting and rebalancing should be about $30-40 per tyre.


ahh didn't see your post just bought into bridgestone before and i had all 4 replaced with re001s as there was also sidewall damage (LFH) along with the scalloped tyres (honda service said they should be replaced and i trust them :thumbsup:)

These are my alignment readings.

Initial Front Camber left: -0.05 right 0.09
Toe 1.0mm -0.1mm


Rear Camber -1.38 -1.38
Toe 6.6mm -0.7mm

Thrust Angle 0.18


Apart from the readings being way outside the specs, would this have had a major impact on the scalloping etc.?

Also driving home with the new tyres everything seemed great the handling, noise etc. only one thing though the steering veers slightly off to the the right when driving straight (and by this i mean it will cross into incoming traffic :( ), i have to slightly correct it to the left to go straight which is pretty annoying. Is this a tyre issue, should i bring it back to bridgestone? or should i get my suspension checked? any ideas on what is causing this?



Thanks Heaps mate!

[aaronng]

ahh didn't see your post just bought into bridgestone before and i had all 4 replaced with re001s as there was also sidewall damage (LFH) along with the scalloped tyres (honda service said they should be replaced and i trust them :thumbsup:)

These are my alignment readings.

Initial Front Camber left: -0.05 right 0.09
Toe 1.0mm -0.1mm


Rear Camber -1.38 -1.38
Toe 6.6mm -0.7mm

Thrust Angle 0.18


Apart from the readings being way outside the specs, would this have had a major impact on the scalloping etc.?

Also driving home with the new tyres everything seemed great the handling, noise etc. only one thing though the steering veers slightly off to the the right when driving straight (and by this i mean it will cross into incoming traffic :( ), i have to slightly correct it to the left to go straight which is pretty annoying. Is this a tyre issue, should i bring it back to bridgestone? or should i get my suspension checked? any ideas on what is causing this?



Thanks Heaps mate!
The left rear toe is very bad. It should read about 1.0 mm. The rest are not too bad. The factory settings are:

Front
Left & right Toe: 0 mm (+-1.0 mm) on each side
Left & right Camber: 0 º (+- 45')

Rear
Left & right Toe: 1 mm (+-1.0 mm) on each side
Left & right Camber: -1.0 º (+- 30')

Did they try to adjust the alignment after measuring it?

[fjear]

The left rear toe is very bad. It should read about 1.0 mm. The rest are not too bad. The factory settings are:

Front
Left & right Toe: 0 mm (+-1.0 mm) on each side
Left & right Camber: 0 º (+- 45')

Rear
Left & right Toe: 1 mm (+-1.0 mm) on each side
Left & right Camber: -1.0 º (+- 30')

Did they try to adjust the alignment after measuring it?


ahh okay, what do you think is causing the steering to veer right when driving straight?

they adjusted it too:

Front,
Left & right toe: -0.7 / -0.7
left & right camber: -0º07' / 0º10'


Rear
Left & right toe: 1.0 / 1.4mm
left & right camber: -1º38' / -1º38'

[aaronng]

ahh okay, what do you think is causing the steering to veer right when driving straight?

they adjusted it too:

Front,
Left & right toe: -0.7 / -0.7
left & right camber: -0º07' / 0º10'


Rear
Left & right toe: 1.0 / 1.4mm
left & right camber: -1º38' / -1º38'

New adjusted settings sound better. Also check your tyre pressures.

I have not had my rear toe out of spec by that much before. But I did have my rear camber uneven and it would turn to the right on its own when driven on a totally flat road at 80km/h. Is yours veering to the right with the new settings?

[fjear]

New adjusted settings sound better. Also check your tyre pressures.

I have not had my rear toe out of spec by that much before. But I did have my rear camber uneven and it would turn to the right on its own when driven on a totally flat road at 80km/h. Is yours veering to the right with the new settings?


that's the thing it's always had a tendency to go right i thought the new tyres and wheel alignment would sort everything out. thing is, there have been a few times when the car has gone through some real aweful knocks to the front wheels/suspension (over kerbs at 40k+ massive bang) etc. could this be a suspension problem?

tried asking the guy at bridgestone his reply was, cars pretty new just needs a wheel alignment followed by pushing up and down on the all 4 sides of the car to observe the suspension then proceeding to say its not a suspension problem heh

[aaronng]

that's the thing it's always had a tendency to go right i thought the new tyres and wheel alignment would sort everything out. thing is, there have been a few times when the car has gone through some real aweful knocks to the front wheels/suspension (over kerbs at 40k+ massive bang) etc. could this be a suspension problem?

tried asking the guy at bridgestone his reply was, cars pretty new just needs a wheel alignment followed by pushing up and down on the all 4 sides of the car to observe the suspension then proceeding to say its not a suspension problem heh

Your suspension alignment looks fine after being adjusted. I agree it is not a suspension problem as it is pretty good as it is now. Going over kerbs at high speed, that can cause damage to the sidewall of the tyre, which could explain your previous set of failing tyres. Is it very slight? Mine was bad that it could take the curve in the M5 tunnel in sydney without me having to steer right. If yours is very slight, then I wouldn't bother. I noticed that you have a slight front toe out as well. That is the setting that I like because it feels sharp but it can cause the car to tend to steer on its own. Tyre places tend to use 0mm or even 1mm toe in at the front to make the car stable.

[fjear]

Your suspension alignment looks fine after being adjusted. I agree it is not a suspension problem as it is pretty good as it is now. Going over kerbs at high speed, that can cause damage to the sidewall of the tyre, which could explain your previous set of failing tyres. Is it very slight? Mine was bad that it could take the curve in the M5 tunnel in sydney without me having to steer right. If yours is very slight, then I wouldn't bother. I noticed that you have a slight front toe out as well. That is the setting that I like because it feels sharp but it can cause the car to tend to steer on its own. Tyre places tend to use 0mm or even 1mm toe in at the front to make the car stable.


if im going straight and i let go it will cross into incoming traffic pretty much in a few seconds. i always have to slightly compensate to the left when driving straight. its pretty annoying :(

just wondering if the answer could be some sort of structure damage or damage to some other component that might be affecting the steering?

also what front toe setting would u recommend i change it, to see if it's indeed this that's causing the steering probs?