Break pads and disc replacement

[Chudy85]

Hello all,

As per the subject, I am going to replace the disc and pads on Friday.
Do you know what size of alan key I need to unscrew 2 bolts that hold the calliper to the hub arm? Those bolts under a plastic cover

I am asking as I would like to buy it if I don't have already this prior I start work.

If I miss any tool/key I have all the shops far away from me and without a car I will have a problem.

Thanks in advance

[rhd443]

Originally Posted by Chudy85

Hello all,

As per the subject, I am going to replace the disc and pads on Friday.
Do you know what size of alan key I need to unscrew 2 bolts that hold the calliper to the hub arm? Those bolts under a plastic cover

I am asking as I would like to buy it if I don't have already this prior I start work.

If I miss any tool/key I have all the shops far away from me and without a car I will have a problem.

Thanks in advance

I am pretty certain it's bigger than most caliper hex bolts, I had to dismantle my brakes recently due to lack of use and seized pads, and I had the same issue.

The front hex key is at least 10mm, possibly even bigger, my guess is 11mm as my 10 was just a bit too loose inside it

The rears are smaller hex key, around 8mm

[Chudy85]

Originally Posted by rhd443

I am pretty certain it's bigger than most caliper hex bolts, I had to dismantle my brakes recently due to lack of use and seized pads, and I had the same issue.

The front hex key is at least 10mm, possibly even bigger, my guess is 11mm as my 10 was just a bit too loose inside it

The rears are smaller hex key, around 8mm

Thank you it means I have to buy hex 11mm as I don't have it at all. Massive thank u

[Chudy85]

Originally Posted by rhd443

I am pretty certain it's bigger than most caliper hex bolts, I had to dismantle my brakes recently due to lack of use and seized pads, and I had the same issue.

The front hex key is at least 10mm, possibly even bigger, my guess is 11mm as my 10 was just a bit too loose inside it

The rears are smaller hex key, around 8mm

Did you manage to use 10mm to unscrew it? I see hard to find 11mm. 10 or 12 mm only

[TeamG]

Originally Posted by Chudy85

Thank you it means I have to buy hex 11mm as I don't have it at all. Massive thank u

Yes, 11mm. I bought a pair of 11mm hex sockets on Amazon, one long, one short for about a fiver. Did the job.

Just watch if you’re doing the discs too. The caliper bolts are bastard tight and loctite too. I needed a spanner on a spanner to break them free as I didn’t have the right socket for those either (can’t remember what size, but I did a thread on replacing all discs and pads a couple of months ago and it will be in there).

[Chudy85]

Originally Posted by TeamG

Yes, 11mm. I bought a pair of 11mm hex sockets on Amazon, one long, one short for about a fiver. Did the job.

Just watch if you’re doing the discs too. The caliper bolts are bastard tight and loctite too. I needed a spanner on a spanner to break them free as I didn’t have the right socket for those either (can’t remember what size, but I did a thread on replacing all discs and pads a couple of months ago and it will be in there).

Yes. I found your post

Will that work for me? I am not sure.

11mm key

It's it 11mm hex?

[rhd443]

Originally Posted by Chudy85

Yes. I found your post

Will that work for me? I am not sure.

11mm key

It's it 11mm hex?

That'll do yep, 11mm

I knew it was bigger than a 10, I can remember buying one to do it from a local motor factors so posted the above advice from memory sorry 😁

[wynnj]

Assuming you've got alloy wheels, on final reassembly put a smear of copper grease between the contact points of the wheel the disc and the hub collar to prevent future corrosion between the steel and alloy. This will make the wheels much easier to remove in the future.

[Chudy85]

You are very helpful. Thank you

[Chudy85]

Originally Posted by wynnj

Assuming you've got alloy wheels, on final reassembly put a smear of copper grease between the contact points of the wheel the disc and the hub collar to prevent future corrosion between the steel and alloy. This will make the wheels much easier to remove in the future.

Will LIQUI MOLY Brake Anti-Squeal | 100 g | Paste | do the job too?
I have ceramic grease no idea if i got copper one