Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[JezInBrum]

Hi James.
I am not sure how old your car is but mine is a 96. On the last MOt it failed on the two big rear subrame bushes being worn & split. After there were chaned the back end of the car came up noticibly. My headlights not need to be adjusted upwards quite an amount to compensate.  doubt that would explain the tyre wear unlss one had failed & other was hanging on.

Jez

[Kevin Wood]

The wear is closer to the outside Jay, however the very outside shoulder has got loads of meat on it.....

Thats sudgests the tyre it self is de-laminating.....which could well be your vibration to.....and its not a good thing to be happening!

An interesting point.

There are a certain number of wear patterns that can be attributed to suspension geometry, tyre pressure, etc. Extreme shoulder wear, uneven wear biased to one side or the other, centre wear, wear on both edges, etc.

If it follows a different pattern, which yours appears to, it means the tyre is going out of shape or not running true. As the tyre is relatively new is it worth taking it back where you got it from for an opinion?

Don't necessarily ask for a replacement, but tell them you're concerned about it and ask if, in their opinion, it's safe, and if they say no, play the "well it must have been faulty, then" card.

Kevin

[hotel21]

General tyre wear, if pressures and alignment, bushes etc are correct, should obviously be even across the tread face.  If load carried is greater than that recommended for specific (unladen) pressure, shoulder wear will result.  If you combine enthusiastic use of roundabouts and its wearing on the outside edge of the RNS then, alignment apart, the answer is under your right foot.

The vibration will most probably be an out of round rim, confirmed by yourself when the tyres were recently replaced.

As to swapping pressures front to rear, the unladen pressures for my 3 litre saloon are the same F & R.  If its the laden pressures, then I certainly would be concerned if the fronts were at 42 psi and the rears ar 36.  It could easily scrub into corners, especially in the wet, and the shoulder wear will be immense.  Also, in my opinion, the rear will wallow out if the car is actually at 'laden' weight...

I would take care in swapping F&R pressures....

[ffcgary1]

JAMES WHAT ARE THE SIZE TYRES THAT YOU RUN, AS 205/65/15/94 SHOULD BE
FRONT=31.5PSI
REAR  =31.5PSI    UNLADEN

FRONT=36PSI
REAR  =42PSI       FULL LOAD

225/55/16
FRONT=31.5PSI
REAR  =31.5PSI    UNLADEN

FRONT=36PSI
REAR  =42PSI       FULL LOAD