fast way of bedding in brakes
fast way of bedding in brakes
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Discussion

torqueofthedevil

Original Poster:

2,088 posts

207 months

Thursday 6th May 2010
quotequote all
im changing my pads to ds2500 a day before a hillclimb. Is it advisable to bed them in quickly using the method of doing a series of brakes from say 45 - 10, 70 - 30 etc?

If so could somebody recommend an exact routine to do this please?

Cheers

mudster

792 posts

274 months

Thursday 6th May 2010
quotequote all
Ferodo Website says said:
Ferodo DS Performance brake pads are supplied to you 'ready to perform' which means that they reach maximum efficiency after only one or two brake applications.
I read this to mean they're pretty much good to go from new.

torqueofthedevil

Original Poster:

2,088 posts

207 months

Thursday 6th May 2010
quotequote all
great - cheers

nonuts

15,855 posts

259 months

Thursday 6th May 2010
quotequote all
Go out, find an empty road, keep accelerating and braking, braking for around 4secs at half pressure for 20-30 times then let them cool by driving. Think that's pretty much what the manual says.

Basically take them out and get them fking hot then let them cool (but NOT while the car isn't moving).

MarJay

2,181 posts

205 months

Thursday 6th May 2010
quotequote all
The trick to bedding in brakes is to get heat into the discs but don't come to a complete stop. If you come to a complete stop with the discs hot the pads will leech all of the heat from that area of the disc, and so the disc won't cool uniformly. This means you can get a kind of warping/deposit on the surface of the disc where the pad is. You do need to get rid of any goop that comes on the disc or pad though. I usually run brake cleaner over discs before fitting them, but pads often need some of the solvent used in manufacture to be burned off.

Let the brakes cool down by driving slowly and not braking to a standstill and when you've driven gently for a couple of miles you can stop the car.

MX7

7,902 posts

204 months

Thursday 6th May 2010
quotequote all
Ferodo Website says said:
Ferodo DS Performance brake pads are supplied to you 'ready to perform' which means that they reach maximum efficiency after only one or two brake applications.
I bet that they work better after about 20 miles though.


nonuts

15,855 posts

259 months

Thursday 6th May 2010
quotequote all
MX7 said:
Ferodo Website says said:
Ferodo DS Performance brake pads are supplied to you 'ready to perform' which means that they reach maximum efficiency after only one or two brake applications.
I bet that they work better after about 20 miles though.
That quote is also wrong, it's for DS Performance pads, NOT DS2500s. What I posted it pretty much word for word what Ferodo recommened for DS2500s and it works!

John D.

21,118 posts

239 months

Thursday 6th May 2010
quotequote all
nonuts said:
Basically take them out and get them fking hot then let them cool (but NOT while the car isn't moving).
This is what I did with DS2500 pads. Worked a treat. I'm not convinced they work properly without a bedding in process.

jon-

16,534 posts

246 months

Thursday 6th May 2010
quotequote all
MarJay said:
The trick to bedding in brakes is to get heat into the discs but don't come to a complete stop. If you come to a complete stop with the discs hot the pads will leech all of the heat from that area of the disc, and so the disc won't cool uniformly. This means you can get a kind of warping/deposit on the surface of the disc where the pad is. You do need to get rid of any goop that comes on the disc or pad though. I usually run brake cleaner over discs before fitting them, but pads often need some of the solvent used in manufacture to be burned off.

Let the brakes cool down by driving slowly and not braking to a standstill and when you've driven gently for a couple of miles you can stop the car.
Pretty much this.

Usually I do around 10 "medium" brakes, say 70-30 then let the brakes cool for 5-10 minutes of gentle driving, then another 10-15 "on the limit" brakes between 80-20 then another 15 minutes of cruising gently before getting to my destination.

Rich_W

12,548 posts

242 months

Thursday 6th May 2010
quotequote all
Brake from 30 - 0 3 times.
Brake from 70 - 40ish 3 times.

Don't sit with your foot on the brakes after each stop. release the pedal.

Job jobbed.

(thats from Mintex BTW, and something I now repeat on all cars)

sebhaque

6,535 posts

211 months

Thursday 6th May 2010
quotequote all
Rich_W said:
Don't sit with your foot on the brakes after each stop. release the pedal.
FWIW I was always told this was the most important aspect of bedding in brakes.

fergus91

72 posts

237 months

Friday 7th May 2010
quotequote all
way weve always done it with the race cars (admitedly on a track) is to sit in say 3rd gear with your foot on the brake and keeping going round for say a lap, or however long it takes for the pedal to start to go away from you and becoem soft, then do another 1 or 2 laps with no brakes whatsoever to let them cool.

after this you should always check the disks for glazeing (haveing a blueish tint) if they are glazed rub down the disks a little with corse sandpaper, then your good to go

irisscissor

5,512 posts

197 months

Friday 7th May 2010
quotequote all
I believe it's braking from 70 to 30 around 8 times. And then going for a 5 minute drive avoiding the brake pedal.