Worn tyre on one corner

[euniqe]

Hey everyone,

I got into my 86 on friday to go to the shops and noticed my rear-left tyre was completely flat seems to be a relatively slow leak though and no obvious source of the puncture, so hopefully can get it patched.

Luckily, I have aftermarket wheels so I swapped over the stockies for the meantime until I can get the tyre plugged during the week. I was swapping them over when I noticed that the punctured tyre was significantly worn compared to the other three tyres. The other three had a significant amount of tread left, this one was essentially down to the wear markers.

Now this really puzzled me. The tyre looked camber-worn and it seemed too excessive wear to blame alignment. Could low pressures from the leak really accelerate wear this much? Could it be suspension issues? I drive the car daily and the puncture has only happened recently, I'm just stumped as to why this one tyre has decided to wear so much faster than the other three, any insight would be appreciated. I'm considering buying a new tyre Instead of fixing it, that's how much it's worn down.

[DarkPira7e]

Imagine this - normally, tire pressure is distributed evenly over the center of the tire, where our hero Tread is tall and proud. He can support 700 lbs because his friends are there helping, also tall and proud.

One day, Tread and his friends go on vacation, leaving Sidewall by himself to hold 700 lbs. Sidewall is surprised, and was never meant to support weight like this!! Without Tread n' friends, 700lbs flattens Sidewall and he waits as the pressure against the rim and the road tear him apart from the inside out.

Yes, without pressure, your tire rides on the rim, which carves the outside of the tire quickly.

[Tcoat]

Originally Posted by DarkPira7e

Imagine this - normally, tire pressure is distributed evenly over the center of the tire, where our hero Tread is tall and proud. He can support 700 lbs because his friends are there helping, also tall and proud.

One day, Tread and his friends go on vacation, leaving Sidewall by himself to hold 700 lbs. Sidewall is surprised, and was never meant to support weight like this!! Without Tread n' friends, 700lbs flattens Sidewall and he waits as the pressure against the rim and the road tear him apart from the inside out.

Yes, without pressure, your tire rides on the rim, which carves the outside of the tire quickly.

Imagine there's no pressure
It isn't hard to do
Nothing to hold the tire up
And no stiffness too

Imagine all the tread blocks
Wearing due to heat

You, you may say that it's worn out
But it's the only one
I hope someday you will watch them
And keep the air above minimum.

[PWBRZ]

Originally Posted by Tcoat

Imagine there's no pressure

It isn't hard to do

Nothing to hold the tire up

And no stiffness too



Imagine all the tread blocks

Wearing due to heat



You, you may say that it's worn out

But it's the only one

I hope someday you will watch them

And keep the air above minimum.

Tcoat doing Lennon - it just doesn’t get any better than this


Sent from my iPhone using Tapatalk

[humfrz]

Originally Posted by euniqe

Hey everyone,

I got into my 86 on friday to go to the shops and noticed my rear-left tyre was completely flat

Hi ya, eunique and welcome to the poetry channel -

NO, I cannot compete with @DarkPira7e or @Tcoat - even on a good day -

So, I figure you didn't put the low pressure sensors on your new wheels - shame on you -

Well, we didn't always have those little nannies to tell us we had a tire(s) with low pressure. How did we get by?

Bubba tells me that one can usually tell if one tire is low by the way a car drives. Iffen that don't work, we had a habit of circling a car every now and then and eyeballing the tires - kicking the ones that look flatter.

Now, I reckon you need to buy a new tire.


humfrz & Bubba

[RZNT4R]

Originally Posted by humfrz

Now, I reckon you need to buy a new tire.

He'll need to buy two tires no matter what happens. If it's down to the wear indicators it shouldn't be fixed and you shouldn't install a new and semi-worn on the same axle, on the back of a fwd maybe you could get away with it, but not on the drive axle of something with an lsd.

Very bad.

[humfrz]

Originally Posted by RZNT4R

He'll need to buy two tires no matter what happens. If it's down to the wear indicators it shouldn't be fixed and you shouldn't install a new and semi-worn on the same axle, on the back of a fwd maybe you could get away with it, but not on the drive axle of something with an lsd.

Very bad.

OR - go down to the used tire place, pick one that is the same kind and size and about as worn as the other three, slap in on there and call it good.

Bubba learnt me that -


humfrz

[RZNT4R]

But that is dependant on finding a similar tire within one or two 32nds, which is certainly not a given.

[Mr.ac]

Originally Posted by humfrz

Bubba tells me that one can usually tell if one tire is low by the way a car drives. Iffen that don't work, we had a habit of circling a car every now and then and eyeballing the tires - kicking the ones that look flatter.

Now, I reckon you need to buy a new tire.


humfrz & Bubba

You could get away with that on a fwd car but sadly on our car you have to replace them in pairs. Unless you want to pay for a new lsd later on.

If you want to save a few dollars just buy a pair of used tires.

[86MLR]

Check your toe settings.

I've found toe gives much more wear than camber.

Low tyre pressure wears both edges usually.

High wears the middle.

LSD requires simular tread wear, uneven wear is not so bad with a torsen, but still not something you want.

Rotate your tyres front to rear more often.

You need an alignment I would say, if, nay when you get an alignment post up your before and after specs.

[humfrz]

OK, beat up on the old man night - ?

I suggested he had to buy a new tire.

The OP stated that "the other three had a significant amount of tread left".

So, I figured he could buy one new tire and put it on the front.

So, lets say his other three tires have 6/32nds tread left and the new tire has 7/32nds. By the time 5,000 miles go by and they are rotated to the rear, I doubt the tire tread difference, if any, would be noticed by the limited slip differential. -





@Tcoat , did I squirm out from under that one - or not?


humfrz

[RZNT4R]

Originally Posted by humfrz

I doubt the tire tread difference, if any, would be noticed by the limited slip differential. -

Do what you want on your car man, but don't give that advice to others, don't mess with an LSD. It doesn't take much of a difference for that constant turning to cause issues. Torsens don't use clutches, load makes the gears jam in the case metal-on-metal.