Is there a need to change the pads when changing the discs

[Terry172]

As per title.....

My discs need replacing and will be going with Brembo HC but my Ferrodo DS2500 have still got life in them and don't want to be buying another set if I can still use my pads until they wear out

Thanks

Tel

 

[markyboy85]

Ive always been told its best practice to do so but am not sure 100% why its required.

 

[Terry172]

Ok mate no probs

Anyone else?

 

[Matt@codered]

Yes, normally...When you say lots of life left in them, how much we talking 15% worn 60% worn?
I personally wouldn't put old pads on new discs, as the old pads have been bedded into the old discs, you wouldn't get the same braking effort as before.
Never scrimp on brakes or steering......it can get messy if you do.

 

[Cupman29]

If the pad face is still flat and level then make sure they're not glazed and I would use them again. If the disc was heavily grooved and the pad face matched this profile then when new discs are fitted the contact area will be hugely reduced and so I would replace both.

 

[Daniel]

I've never changed just discs or pads. If one of them needs changing, I do both.

 

[Terry172]

Cheers for the info all

 

[Fletcher]

I've never changed just discs or pads. If one of them needs changing, I do both.

Me too.

 

[Dan519]

expensive though if the pads really are barely worn. There's no reason not to de-glaze pads on a flat surface with course emery paper

 

[Vish]

I always thought DS2500s and CLs went through discs anyway.

I wouldn't be too concerned as long as the pads were in good condition and had plenty of life left.

 

[Dan519]

most track pads will eat through disks. I've done 3 sets of disks for one set of pads for someone (not my pad recommendation I hasten to add)

 

[Terry172]

I will take the pads off and check the condition of the surface whilst I am fitting the discs, if I need to new ones due to the surface being fooked then I will order them asap and then put everything on together.

Pads I would say are only 30-40% worn based on the thickness when new.

Thanks for the info

 

[Matt@codered]

expensive though if the pads really are barely worn. There's no reason not to de-glaze pads on a flat surface with course emery paper

Yep, thats fair. But ensure the pads are not tapering in any way...... personally I'd put them aside for an emergency post track-day blast.......(after realising you only have 1mm left on the pads you are expected to get home on).