New wheels, Rubbing?

RJS-Z4 said:
Don't jack it up, just use a tape measure.

The reason I say that is because I've seen it before where someone has bolted the wrong star (face) to the wrong drum (that's assuming you've got 108 split rims). So just measure the inside of the wheel drum on the front and rear.

never even thought about this before, great bit of advice to follow if im ever in this situation myself (i hope i wont be) :thumbsup:
 
RJS-Z4 said:
jjr197 said:
bamberjim: Well I was 100% that I checked until people started asking! :-)

Jingle: No spacers fitted.

I'll get it jacked up again tonight and have a look.

Don't jack it up, just use a tape measure.

The reason I say that is because I've seen it before where someone has bolted the wrong star (face) to the wrong drum (that's assuming you've got 108 split rims). So just measure the inside of the wheel drum on the front and rear.

Is that correct? I ask only because when I bought a set of 108's off Mr Wilks some time ago, he said that all the stars were the same - only the drum width changes front to rear?
 
the offset is different front to rear so the stars are different, from memory the rears concave a small amount. The wheels are 100% correct as they came off my car and were fine no rubbing.. There is another issue here
 
Are you sure the sound is rubbing ? There's no way they should rub on stock suspension. A couple of thoughts -

On my last car, and my current, when reversing out my drive on full lock (also sloped) I get a nasty sound from the power steering. It's normal, and I think is just the steering hitting it's limiter. I get it on the flat too, forwards or backwards, and stationary on full lock I think.

Second thought, less likely - doing the same manoeuvre on my last car I used to get a creaking noise, sounded like it was coming from the front suspension but was actually the firewall braces. The nuts can slacken off and nipping them up - gently - cures the creak.

If I were you I'd whip the front wheels off and check for signs of rubbing on the inside of the arch liner - you should be able to see it, as the dirt will be rubbed off. I assume you don't have spacers on... If you do then that can cause rubbing in strange places too.
 
The stars should have zero affect to the offset even if mixed .
The only difference is where the bolt heads show on wheelface , the rear sockets are about 2mm deeper ?
You need to measure from bolt head to star face as just looking won't tell you
 
I also find it hard to believe any 108 with a 225 40 tyre would foul a front arch whether or not it was a rear or front
Generally the gap around is enough to get your hands all around even on Msport suspension
 
possible that the wheel arch liner is misplaced and thus causing the rub??

you need to remove the wheel and look for the contact point, it will be very easy to see. Id suspect this isn't what you think it is, the z4 front will swallow those wheels with ease.
 
The more I read this and think about it, the more I think this isn't rubbing, it's the firewall braces... That definitely happens only under compression of the front going up/down slopes or speed bumps while turning.
 
z4pilot said:
RJS-Z4 said:
jjr197 said:
bamberjim: Well I was 100% that I checked until people started asking! :-)

Jingle: No spacers fitted.

I'll get it jacked up again tonight and have a look.

Don't jack it up, just use a tape measure.

The reason I say that is because I've seen it before where someone has bolted the wrong star (face) to the wrong drum (that's assuming you've got 108 split rims). So just measure the inside of the wheel drum on the front and rear.

Is that correct? I ask only because when I bought a set of 108's off Mr Wilks some time ago, he said that all the stars were the same - only the drum width changes front to rear?

Well given that the wheel width etc is printed on the back of the stars, I'd say they must be different. Otherwise the markings would be on the drum.

If they're anything like most other BMW wheels I'd say they're probably more concave on the rear wheels.
 
jjr197 said:
bamberjim: Well I was 100% that I checked until people started asking! :-)

Jingle: No spacers fitted.

I'll get it jacked up again tonight and have a look.

Where are you located? If you're SE I don't mind taking a look.
 
RJS-Z4 said:
z4pilot said:
RJS-Z4 said:
Don't jack it up, just use a tape measure.

The reason I say that is because I've seen it before where someone has bolted the wrong star (face) to the wrong drum (that's assuming you've got 108 split rims). So just measure the inside of the wheel drum on the front and rear.

Is that correct? I ask only because when I bought a set of 108's off Mr Wilks some time ago, he said that all the stars were the same - only the drum width changes front to rear?

Well given that the wheel width etc is printed on the back of the stars, I'd say they must be different. Otherwise the markings would be on the drum.

If they're anything like most other BMW wheels I'd say they're probably more concave on the rear wheels.

So effectively you should have 2 stars stamped 8 and 2 stamped 8.5?
 
Ok, so 8.5js are on the back, that is not the issue.

Looking at where there has been contact, my initial description of so where between rubbing and grinding becomes clearer.

It appears that the highest point of the inner edge of the alloy has been making contact with the outer housing of the suspension (pics to follow).

Off side, this had worn away the black paint on the housing, and it is down to the metal. Near side is better, but still shows signs of the same.

The off side also shows a small amount of dirt having been cleaned off the inner front edge of the wheel arch.

The ONLY thing that makes sense to me is that somehow, and I genuinely do not know how, the front wheels were not fitted fully flush with the hub, meaning that when I went round a corner to the right, a small amount of play in the wheel caused it to rub. I will have turned to the left less often which is why the near side was less affected.

Does anyone else have any other theories?

Jimi
 
jjr197 said:
Ok, so 8.5js are on the back, that is not the issue.

Looking at where there has been contact, my initial description of so where between rubbing and grinding becomes clearer.

It appears that the highest point of the inner edge of the alloy has been making contact with the outer housing of the suspension (pics to follow).

Off side, this had worn away the black paint on the housing, and it is down to the metal. Near side is better, but still shows signs of the same.

The off side also shows a small amount of dirt having been cleaned off the inner front edge of the wheel arch.

The ONLY thing that makes sense to me is that somehow, and I genuinely do not know how, the front wheels were not fitted fully flush with the hub, meaning that when I went round a corner to the right, a small amount of play in the wheel caused it to rub. I will have turned to the left less often which is why the near side was less affected.

Does anyone else have any other theories?

Jimi

starting to wonder if the car has been in an accident at some point.....
 
When did you last have the alignment set up, must be running a huge amount of camber on the front. What's the wear pattern like on your old front tyres
 
No accident damage that I know about, no indicators of it anywhere either.
Front tyres are worn nice and evenly (I've put the last 20k out of 46k on it).

For now I'm putting the 104s back on, and I'll have a proper look at the weekend In daylight.
 
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