Well this is the result that I encountered last night on my way home. About to enter an 80 zone and a 100 zone only a km or so away. Feeling quite lucky actually as it could have been a whole lot worse. On the up side, I have ordered a pair of nexen 3000's at 235/45/17 for $135 each. If they are as good as everyone says than thats a royal bargin if you ask me. AB
camber yeah the camber issue sucks... i was quoted $190 a pop for 17 , 255 ... its just another hurdle is the never ending quest for a complete z...
Thanks for the timely reminder Jarrad......>> All zed owners should periodically check the wear on the inner edges of their tyres. Investment in adjustable upper arms can eaily pay off with increased tyre life. Glad you caught it when you did though.
Re: camber I wonder if this guy has any problems with premature tyre wear. One thing i have been told is that Toe must be set to 0 or as neutral as possible when you run excessive camber. My last car had -3.5 degrees on the back wheels for about 10,000kms without showing much if any tyre wear. But it was FWD and i dont go around corners quick :wacko:
Off the top of my head I think it's 2-2.5... still excessive enough though. will be getting some camber arms soon though as I'm sick of going through tyres like this. AB
Pete would it also prolong the life of the tyre's if they were swapped from left wheels to the right ones as to have the inner or worn side of the tyre swapped over. Just a thought for those who don't have/ can't afford the upper arms for the moment.
To do this... ...you need to remove the tyres from the rims and refit. If you're short on funds, some longer bolts and a few washers is a cheap alternative for too much front neg canber. You can shim the front upper arm bracket.
I think it's not as simple For the inner edge to wear that much you would need something like 10 degrees camber for it to be just from road wear. I think your tyre has been rubbing on the part of the suspension that goes from the hub up to the upper arm, the bit that curves up over the top of the tyre. I had the same problem when I had oversize tyres + lowered. Car is now raised and tyre OD is within a few mm of stock, I still have excessive camber but nowhere near wear like that.
This does even out the wear ... and I have done it before, but if the camber problem is extreme (mine was) then your tyres will still wear prematurely - centres will be OK but both edges will be worn. How friendly is your tyre fitter? If you have asymmetric tyres you cannot take this approach - instead of the tyres being "directional", they have an "inside and an outside" and should only ever be mounted one way on any rim. I got RedZed's chassis checked and the problems ironed out at the Z Shop before Goulburn last year, then followed that up with a 4 wheel alignment at Bob Jane and my tyre wear has been quite even since. I'm finally getting tyres to last - would have saved me money if I had fixed the problem in the first place. And what IB says below about toe in is dead set true - before correcting the issue my left rear was at +18.2mm, camber was -1.5°, and I was getting a similar wear pattern. After alignment toe was 0.5mm, camber was -1.3°. Had another alignment done in January, and on that wheel toe had moved to -1.6mm, camber -1.6°. Unfortunately we have a lot of roads in poor, potholed condition, and from now on I'm getting an alignment every 6 months.
You can't say not true, maybe unlikely I could see marks on the part of the suspension I'm talking about from the tyre rubbing
Not true that you need 10 degrees of camber to cause that wear ...>> that wear can all be caused by alignment issues. He is running 235/45/17 tyres which have an OD very close to the stock 225/50/16. You're problem would be very apparent when you took the wheel off, there'd be a shiney patch on the upright where it had been rubbing.
when you say you got the chassis checked... When you say you got the chassis checked and the problems ironed out, exactly what did they iron out? was it simply a wheel alignment or was it more sinister? I've always been curious about what has caused the camber becuase the only change from stock that I can see is a slight sag in the springs. I wouldn't have thought it would cause that much camber though. I'll certainly be looking at a set of camber arms soon but if there is something else I should look at (I'm considering the adjustable tension rods too) then I'm all ears. Now, to chase up Egg about those arms he was selling once apon a time... AB
Hmmm... I was told the exact opposite...>>> I was told that one way to help reduce wear of the inside edge of a tyre due to running exessive negative camber was to increase the toe-in, this causes the tyres to lead (drive) more on the outer edge (rim side) of the tyre. On to your pic, Wow !!! the Japs have some crazy idea, besides the ridiculas -camber check out the tyres which look about 2" too small for the rims. Cheers Andrew
It was more sinister than just an alignment ... This unfortunate incident happened at 100kmh about 3 years ago. The wheel and brake assembly are basically just hanging on by the brake line - the wheel hub broke into 2 pieces after a spin into a series of potholes :angry:. After we bought a few parts from a wrecker and got the car back on the road again, it pulled to the left and I had poor tyre wear. Eventually I took the car to get the issue sorted, and the suspension mounting points were all triangulated and checked, and found to be reasonable. The fault was eventually traced to the replacement wheel hub bought from a wrecker, it was bent in one area, throwing out attempts to align it. Once diagnosed, fixed, and now aligned regularly, tyre wear is much more even across the tread, and saving money :thumbsup:. Jarrad, don't just assume that camber is the only culprit - it could also be that toe-in is deranged. I have been running about 2½° neagtive camber for the last year on standard rims and getting a pretty even wear pattern.
re toe in... I suspect you are right as I kinda remember the wheel alignment guy saying something about adding toe to correct for the camber. Maybe he went too far. AB
