Front Brake Disc Screws

Brimo · Apr 10, 2013

Hi guys
Today I was intending to replace the front discs and pads on my TD4. Im not the worlds best mechanic but this was I job I should be able to do. How ever I was halted by the screws that hold the disc in place. They were totally rusted in . I tried using an impact driver (as suggested by the wonderful Haynes manual) but they were having none of it so I stopped before I totally fecked them up.
Does anyone have any experience to share on this. I just read another thread with a heated discussion on whether or not you could leave the screws off but I dont really want to do this. Is there anything hidden behind the disc that I might damage if I apply a bit heat for example.

Any comments would be appreciated

Andy

matt1295 · Apr 10, 2013

Drill the heads off once the disc is off try using a pair of mole grips to try and undo it

Freelaner · Apr 10, 2013

mine were well rusted in and i used an impact driver!
are you using it right

failing that drill em out or smash the discs to bits with a big hammer and chisel

i wunt apply heat tbh

mickymck · Apr 10, 2013

Brimo said:
Hi guys
Today I was intending to replace the front discs and pads on my TD4. Im not the worlds best mechanic but this was I job I should be able to do. How ever I was halted by the screws that hold the disc in place. They were totally rusted in . I tried using an impact driver (as suggested by the wonderful Haynes manual) but they were having none of it so I stopped before I totally fecked them up.
Does anyone have any experience to share on this. I just read another thread with a heated discussion on whether or not you could leave the screws off but I dont really want to do this. Is there anything hidden behind the disc that I might damage if I apply a bit heat for example.

Any comments would be appreciated

Andy

as said drill the heads off or just hammer the brake disc off which usually breaks the screw heads off,screws are not fitted to every make of car so i think its only a build process from new to hold the disc in line for easy fitting of calliper,not all manufactures do this

Brimo · Apr 11, 2013

Thanks for the replies fellas.

I tried the impact driver but it was just starting to chew the head off. If its down to drilling it off anyway I will have another go with it - nothing to loose after all

Andy

teddywood1 · Apr 11, 2013

as said drill the heads off with a 7 or 8 mm drill bit not any biger as you run the risk of drilling into the hub, once you have taken the disc off the rest will come out easy, it is only the heads rusting onto the disc, when you put the new ones back in put a tiny bit of copper grease on the underside of the head of the screws

Brimo · Apr 11, 2013

Thanks for all the advice - I have order new screws but have missed my window of opportunity until next weekend so I will have another go then.

Much appreciated guys

Andy

Irishrover · Apr 12, 2013

Try knocking them round with a centre punch and hammer working on the edge of the flat face of the screw. It has always worked for me.
Replace the screws afterwards with socket (Allen key) Countersunk screws which are available from Ebay cheaply enough...I think, from memory that they are M8 X 16 long.

englishbullterrier · Apr 12, 2013

As said upthread. Hammer the disks from behind, rotating them slowly to ensure they're battered all around. They will eventually break. (mine did). In actual fact, they broke in a way that the screw was left in place with the screw still in. Remove disk parts, and use any tool you need to remove screw. Simples...........

englishbullterrier · Apr 12, 2013

teddywood1 said:
as said drill the heads off with a 7/8 mm drill bit once you have taken the disc off the rest will come out easy, it is only the heads rusting onto the disc, when you put the new ones back in put a tiny bit of copper grease on the underside of the head of the screws

Bloody hell, a seven eighths of a millimetre drill. Now THAT'S what I call small...

teddywood1 · Apr 12, 2013

englishbullterrier said:
Bloody hell, a seven eighths of a millimetre drill. Now THAT'S what I call small...

i ment 7 or 8 mm drill i have never heard of a 7eights of a mill

JC600 · Apr 12, 2013

Brimo said:
Thanks for all the advice - I have order new screws but have missed my window of opportunity until next weekend so I will have another go then.

Much appreciated guys

Andy

Have a look in B&Q, counter sink machine screws are fine.

I've used them in the past.

Front Brake Disc Screws

Brimo

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matt1295

New Member

Freelaner

Landy Driver

mickymck

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Brimo

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teddywood1

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Brimo

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Irishrover

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englishbullterrier

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englishbullterrier

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teddywood1

Well-Known Member

JC600

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