| Author | Topic |
|---|
Location:
Malaysia,Kuala Lumpur
Registered:
July 2002
|
|
uneven tire wear !!
|
Sun, 11 April 2004 11:32
|
 |
I did a 240km trip and back this Saturday morning.
Was raining cats and dogs on and off during the trip.
Returned late nite and this Easter Sunday morning wanted to check the car and see if anything irregular i.e. leaks or scratches on the paintwork  etc.
My cress gx60 which still uses it's original steering system and a 1g-gte had the front tires wear on the edge of sidewall and contact patch area in its circumference..i suspect either air pressure..or worn out ball joints bushes..tie rods etc. this was more apparent on the right side..with the left side..not more than the usual wear from what looks like off toe or caster adjustment needed.
The rear how ever had a different picture...outer side of tire..had more wear than usual..both side..during my 150km average speed..i notice vibrations..and knocking noise from the axle,like a 'dong' when i would hit little potholes etc. Some freeplay in the pinion..and bushes are fairly good condition..shocks fairly stiff type hydraulics otherwise nothing unusual.. What could be causing this kinda wear in the rear tires.
cheers
|
|
|
I supported Toymods
Location:
Perth, WA
Registered:
May 2003
|
|
Re: uneven tire wear !!
|
Sun, 11 April 2004 12:27
|
|
|
Wheel alignment?
|
|
|
Location:
Adelaide
Registered:
June 2003
|
|
Re: uneven tire wear !!
|
Mon, 12 April 2004 03:31
|
|
|
wheel alignment, tyre preassure, worn suspension components or a combinate of the 3.
|
|
|
Location:
Malaysia,Kuala Lumpur
Registered:
July 2002
|
|
Re: uneven tire wear !!
|
Mon, 12 April 2004 13:39
|
|
Hi..pressure 28 bushes 4 months old..rear tyres with rigid axle..is there alignment for this ??
cheers
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: uneven tire wear !!
|
Mon, 12 April 2004 23:07
|
|
Is the car naturally driving straight? For the rear end, maybe the top or lower arms are stuffed (particularly on one side) causing a different amount of rear castor on one side (other than the 4 link rear end bushes, and maybe sagged rear springs I can't think of much that effects a rigid axle) have a look at the arms I think.
Oh, one other thing, has it had a bad crash in its life? Maybe the rear axle is not sitting in the rear correctly (might be pointing off to the side?).
For the front end, with the wheel on the ground is there any side play in the tire's (grab hold of the top, and pull in, then push out, should be minimal play), if there is, might be wheels bearings (jack up the car and test) or ball joints etc. I'd get a wheel alignment on the front and see what the figures are...
Also I'd be running more pressure prbly around 32-34psi as well.
Cheers
Wilbo
|
|
|
Location:
South Australia
Registered:
July 2002
|
|
Re: uneven tire wear !!
|
Tue, 13 April 2004 03:00
|
|
I'm notin the know about the cressida's front end set up, but it is possible that the extra load from the 1G-GTE could be altering the tyre contact patch being used. This probably won't happen if it's a double a-arm, mac-pherson strut or double wishbone set-up, but if it is single A arm etc etc then maybe this is possible.
Dunno, just a thought that came to mind.
Also, out-of-balance tyres/wheel can cause pretty bad vibrations.
28psi pressure is probably a bit low, but is probably not the issue in this case.
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: uneven tire wear !!
|
Tue, 13 April 2004 11:24
|
|
McPherson struts in the front, 4 link + panhard rod in the rear.
Cheers
Wilbo
|
|
|
Location:
Malaysia,Kuala Lumpur
Registered:
July 2002
|
|
Re: uneven tire wear !!
|
Tue, 13 April 2004 11:35
|
|
Ok..macpherson struts..front yes. A bent panhard rod ?? worn bushes..changed. Tire pressure 32-34..front or all around ?
my fronts have 30 and rear 28-29 psi.
Like wilbo said..4link+p/rod in the rear.Spring fairly new..Sachs from a Volvo.(heavy duty)..the front is prolly due to the b/joints are worn..and alignment/balance issues...will
have to check the rears for balancing..Could a warped Tailshaft be a cause for vibes and wear ???
cheers
|
|
|
Location:
Adelaide
Registered:
June 2003
|
|
Re: uneven tire wear !!
|
Tue, 13 April 2004 13:22
|
|
|
i have my tyres at 38-40, although it means that they tend to wear out the middle 3/4 before the edges. still less sidewall flex, better for going fast and less chance of the tyre rolling off the rim
|
|
|
Location:
Malaysia,Kuala Lumpur
Registered:
July 2002
|
|
Re: uneven tire wear !!
|
Wed, 14 April 2004 11:23
|
|
Guys, won't excessive tire pressure ; apart from centre wearing off more..cause the car to be 'unstable' especially in the rain..the tail might just swing out in a cornering.
cheers
|
|
|
Location:
Adelaide
Registered:
June 2003
|
|
|
