Alcon Conversion Front Wheel bell. Where from??

[NZ_M3]

Originally Posted by lawsy

My guess is when they were painted yellow, and the decals applied, the nipples and connecting pipes were installed incorrectly.

Lawsy's correct - your calipers are upside down and as stated the bleed nipple and the connecting pipes were installed incorrectly.

That wear mark looks to me like one of the brake pads have failed and come away from the holding slot within the caliper and made contact with the disc and chewed through it.

You can buy the bells independently from Alcon - if you search I am sure someone has posted a part number up before, otherwise I can look for it later on.



I think this is the correct bell part number (found it in my photo files)

[M5 Powered]

Hi Johnny,

That is pretty shocking. Those don't seem to be original Bells. The correct ones are as NZ shows (they have a black heat coating on them).

Call Alcon in the morning. Customer service was excellent!

[chicken]

what ever happened to good workmanship or at least pride?

[leaded]

Give Dave a call at Ears motorsport. 01625 433773

dave@ears.co.uk

They do Alcon stuff and are very helpful.

[shane@mbtech]

To me it looks like wheel acid/chemical has been used to clean the wheels and and the bell has reacted/oxidised and thats why they have gone this way?

That and the bolts holding the disc to the bell have been overtightened.

[Johnnywb]

Thanks all.

I've spoken to Alcon this morning who are going to have a look into sourcing something.

The guy i spoke to thought that the items were custom made for the CSL, in which case it might be a hassle to get something.

Will let you know how it pans out.

[Johnnywb]

Ok, latest update;

Alcon never called back.

Dave at Ears on the other hand, could not have been more helpful.

It would seem that my car isn't the first CSL he's seen with this problem and he has been working on a fix. He did explain the issue to me, but i'm hard of thinking.

From memory, i think (and i'm sure someone will be able to confirm), the alloy used for the front bell housings basically isn't strong enough and degrades over time. Dave has been working with an engineer to come up with a better solution.

He's sent down a couple of bell housings, bobbins and other bits.

Essentially i've opted to turn the fronts into a full floating set up in line with the race set up.

I'll let you know how we get on.

I'll also see if i can get Dave to post here exactly what's going on as he's got a much better idea than i!

[KPNUTZ]

Need to check my calipers as I'm sure my bleed nipple is pointing upwards!

As a side note, can only speak highly of Dave at Ears, haven't dealt with him since I had my Evos, top bloke.

[Johnnywb]

Originally Posted by KPNUTZ

Need to check my calipers as I'm sure my bleed nipple is pointing upwards!

As a side note, can only speak highly of Dave at Ears, haven't dealt with him since I had my Evos, top bloke.

The bleed nipple should be pointing up to let the air out.

Basically some muppet put my calipers together the wrong way once they were painted... THe smaller of the three (6) pistons should be at the bottom, you can see on mine, it's at the top...

Nervous wait for parts delivery today....

[karbonkid]

Interestingly I see the picture below on Thorney's website, showing smaller piston at the top:

Whos car is this? Johnnywb?


Comparison of another set with larger piston at top.