Wheel Bearing Drone Could Be Tyres??

[Pitbull]

Ive had a horrible droning on my car for the last year. I have Eagle F1's on all round. I had both rear bearings and discs fitted as i was told it was a rear bearing failing, made no difference. I had it back in Renault this week for the day where it was test drove for 40 mins including on the motorway. It was put on the ramps and all suspension, shafts, bearing and bushes were looked at and came back with nothing is wrong, i must be imagining it. Both front tyres are 6 weeks old and rears 12 months old. All 4 have all most full tread, but ive just noticed that the inside of the rear tyres is almost down to the canvas, even thought the rest of the tyre is like new.

Q1. Why would the inside edge of the rear tyres wear so fast?

Q2: Could this be something to do with the horrible droning?

The tracking hasnt been done for a year but it drives and brakes perfectly straight.

Any advice would be appreciated.

 

[Henry]

no answers, but it seems unusual that a comprehensive geometry check wouldn't identify a problem that might cause marked rear tyre wear like that - ? (seems there must be a problem - bent stub axles, beam issues, twisted frame, +)

do you know what they used to measure things, and might it be worth taking it somewhere else for a 'second opinion'?

ps. what does the camber of the rears look like?

 

[Pitbull]

The camber looks equal on both sides. I do 110 miles a day in it 5 days a week, mostly at motorway speed, if that helps. But...the steering wheel is off centre when driving straight, probably not related but who know. Its never been bumped or hit any kerbs, all alloys are unmarked.

 

[Henry]

it does sound like a geo problem - tyre wear as described just isn't right. without knowing how sophisticated the equipment Renault used was (might just have checked the F tracking?), i'd initially be thinking of taking it to an indie to have it checked on a decent 4 wheel alignment rig. it seems 'normal' to note deviations from the manufacturer's specs in a lot of the measurements (partly as mounting bushes do deflect in use, and stub axles will bend), but would hope that any geo problem that might lead to serious wear like that would show up?

 

[mark123]

I get a droning from my near side rear after 20k+ miles. It starts to get flat spots on the inside. If you run your hand over the tyre it is obvious. I do mostly motorway miles like you. Try swapping your front and rear tyres round and see if it makes a difference.

I've had my geometry checked and all was fine. Did you get the rear geometry checked - do you have a print out?

 

[Pitbull]

No i didn't get any print out regarding geometry check. I will get the rears replaced tomorrow, but still there seems to be a problem which is unsolved by just replacing the tyres.

 

[mark123]

How many miles have the tyres done?

I wrote down the miles before mine went funny and it (the tyre) had done 38k! It was still legal tread wise. Tyre guy just reckoned it was because they were so light at the rear. I've had two do it now both after similar miles.

 

[Pitbull]

The rears are exactly 1 year 6 months old and have covered 32,000 miles, but as you say, they look legal, it had its 72,000 mile service 3 months ago and the report shows 5mm on both rears. The fronts have been replaced with even wear on both.

Edit: Just got paperwork out to check tyres age, they are 18months old not 12 as posted in my first post.