min gap - calliper to wheel?

[edo]

Well the 17" alloys and winter tyres have arrived.

Stuck one on the front to test and its bloody tight to the brake calliper.

Only a couple of millimetres and very close to the sticky wheel balance weights.

Any thoughts on this - what is the minimum tolerance you should have here?

[thinfourth2]

If the wheel goes round and round i wouldn't worry.

The only thing lible to move is the caliper which moves in and out when looking along the stub axle line

[kambites]

I claim no expertise in the area, but 2mm sounds like a fair bit to me. Wheels don't flex that much, surely?

[SHutchinson]

I recently had an Alfa 159 JTDM courtesy car that had huge brakes. The caliper to wheel clearance was 3mm at most.

I wouldn't worry.

[blueg33]

On my Ginetta G33 the gap was only about 1.6mm if memory serves me right. Never had any problems and that's how they came out of the factory.

[edo]

tops folks, thanks.

I may just get the weights moved - they are a bit too close for comfort!

[HellDiver]

The caliper will move them if required. If not required you're wasting your time moving them.

[indi pearl]

If the callipers are of the floating type then the distance from the rim will increase as the pads wear. However if the pads are currently worn down you could well have problems when you come to replace as the floating arm will extend furthur out towards the wheel rim to accomodate the fatter pads..

[edo]

thanks. Its the fixed lower calliper edge that is close to the inner rim "face", rather than the back of the spokes if that makes sense.

[8400rpm]

2mm? LOADS of room!

[edo]

8400rpm said:

2mm? LOADS of room!

cripes.

My space isnt there - its edge to inner rim. just grazing the inner wheel weights.

[mgcameraman]

Brembo stipulate clearance of 3mm minimum between the wheel and caliper.

[dylan0451]

i put bigger calipers on a metro once. started bolting the wheels on and realised they didn't go round anymore

i sanded a small bit of the caliper to get the movement back, i think the inner edge of the caliper got cleaned!

as said above though, do it with new pads, i did it with part worns and had to do it all over again!

[psymonr]

edo said:

cripes.

My space isnt there - its edge to inner rim. just grazing the inner wheel weights.

Yeah I have a similar problem, see my thread in the BMW section here

Also brembo guidance here

my issue is calliper to the inner side of the rim as well,

Edit: fixed link

Edited by psymonr on Friday 15th October 10:51

[edo]

psymonr said:

edo said:

cripes.

My space isnt there - its edge to inner rim. just grazing the inner wheel weights.

Yeah I have a similar problem, see my thread in the BMW section here

Also brembo guidance here

my issue is calliper to the inner side of the rim as well,

Edit: fixed link

Edited by psymonr on Friday 15th October 10:51

Thanks. Its my balancing weights which are making it tight!

[Petrolhead_Rich]

I would be very worried if the caliper moves 3-4mm under braking, only concern would be under heavy braking the caliper would expand but not by that much (and if that hot, the least of your worries!)

Rim Balance weights might be advisable, but even if one comes loose/off I can't see it damaging much, a brake disc would eat a balance weight in a short amount of time.

[Waugh-terfall]

Is this for the TT Ed?

I'll see if I've still got a picture of 'beergibbon's Imprezza, you might just be able to slide a sheet of paper between the calipers and the spokes!

ETA: Sorry, looks like I don't

On a side note, can you specify sticky wheel weights over clip-ons? Just had new tyres on the front and now have a MASSIVE weight on the rim of the wheel...

Edited by Waugh-terfall on Friday 15th October 11:10

[edo]

Waugh-terfall said:

Is this for the TT Ed?

I'll see if I've still got a picture of 'beergibbon's Imprezza, you might just be able to slide a sheet of paper between the calipers and the spokes!

Yes, 3.2 Mk2

[Waugh-terfall]

edo said:

Waugh-terfall said:

Is this for the TT Ed?

I'll see if I've still got a picture of 'beergibbon's Imprezza, you might just be able to slide a sheet of paper between the calipers and the spokes!

Yes, 3.2 Mk2

I know, I've seen it

[edo]

Waugh-terfall said:

edo said:

Waugh-terfall said:

Is this for the TT Ed?

I'll see if I've still got a picture of 'beergibbon's Imprezza, you might just be able to slide a sheet of paper between the calipers and the spokes!

Yes, 3.2 Mk2

I know, I've seen it

:-)