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6 posts

Wannabe Geek

Topic # 179327 4-Sep-2015 10:26
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i drive a mazda 3 
ive had my front right 19 inch tyre replaced a month ago,
ever since it seems like there is some vibration whilst driving from 50-80kms,
i have had the tyres balanced and its fine
i was reading in some threads this could be caused by fault engine mounts?
any one have this type of problem?

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251 posts

Ultimate Geek
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  Reply # 1379580 4-Sep-2015 10:32
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Did you have the alignment checked at the same time?

Probably too soon to tell, but a big hint is if the tyres are not wearing evenly.  If the wear is not even then the alignment is probably out.

The other possibility I guess is if the tyres are not inflated correctly.  Have you checked all four tyres?

ps. I'm not inclined to think it is engine mounts if it only started happening *after* the tyre was changed.  That would be a too big of a coincidence.  So I think it will be related to this change.

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Ultimate Geek
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  Reply # 1379582 4-Sep-2015 10:37
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Need more info.
If it suddenly appeared at the time of your tire replacement it's likely associated.

Why did you have the RH tire replaced? Unusual wear? Hit a curb?
Have you checked it's mounted securely against the hub? Not a chunk of rust/dirt jammed in there..?
New, grippy tread will make a wheel alignment problem or warped rotor more obvious.


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Uber Geek
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  Reply # 1379596 4-Sep-2015 10:45
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Have the new Tyre (FR) and the existing FL tyre got the same tread pattern? Is the FL quite new or have good tread depth?

19's are pretty big for a Mazda3. I have 18s on mine and wondered what 19s would look like.

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  Reply # 1379609 4-Sep-2015 11:02
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Mis-alignment alone shouldn't cause vibration.  Mis-alignment combined with another issue (worn suspension bushes etc) might.
I suspect a balance issue.  Are they aftermarket mags, are they centred on the hub correctly, is there rust or something stopping them from sitting flush on the hub, have they got the correct wheel nuts to suit the mags, and have they been torqued correctly or has some ape with a rattle gun over-tightened them and/or not tightened them diagonally?
(correct torque for the very lightweight mags on one of my cars is only about 75 ft/lb - 100nm - even my battery rattle gun is well over 500 ft/lb - very useful for removing wheel nuts, but great care needed if used to tighten them - even with steel rims).  Yes tyre shop guys use them all the time with varying degree of skill.  After being at a tyre shop, I take the car home, loosen and retorque the nuts.

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  Reply # 1379618 4-Sep-2015 11:21
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When this happened to me the steering ball joint thingy that connects something to something under the car was worn on that side.

But with mine case, that one tyre would wear out within 5000ks, took them 3 tyres later before I got suspicious and challenged them something's not right how can you keep selling my a tyre and it's gone after a few months

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Ultimate Geek
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  Reply # 1379632 4-Sep-2015 11:56
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After thought going through my mind which is growing on me - did you by chance have only the new wheel balanced?

If so, and the balance of the other front wheel was wrong (say because the tyre is now half worn from when it was originally balanced) they you could get the issue you are describing.  I would consider getting all four wheels balanced to make sure.

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Ultimate Geek
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  Reply # 1379638 4-Sep-2015 11:57
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Another thought again - has perhaps one of the new (or old) balancing weights come off?  Check the rim to see if there are any clean/shiny spots that might indicate where a weight once was - and is no longer.

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  Reply # 1379662 4-Sep-2015 12:24
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Take it to a mechanic and get them to look over the suspension and steering bushes.  If none of those are bad then go back to the tyre shop and have them check the tyre and possibly re balance the wheel.

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