Nasty rattly brakes?

Nasty rattly brakes?

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Discussion

Noodles 4.2

Original Poster:

574 posts

269 months

Sunday 26th January 2003
quotequote all
Hello all,

I am hoping someone can help diagnose some wierd noises coming from my Cerb.

I have just had a full service and have done 70 miles since. New brake pads were fitted on the rear - green ones. The weather has been good lately so I have been driving with both windows down. I have noticed a rattly / clicking noise coming from the passenger side towards the back of the car underneath. It sounds like something is loose but I can't see what. When I pop it out of gear and coast it becomes quite noticeable.

However, whilst coasting along if you rest your foot on the brake pedal to sort of take up the first few mm of slack the noise stops. This leads me to believe that something has gone awry with new pads. Could this be so and if so what is the cause and cure?

Hoping for some pointers.

Tony

greenv8s

30,487 posts

291 months

Sunday 26th January 2003
quotequote all

Hello all,

I am hoping someone can help diagnose some wierd noises coming from my Cerb.

I have just had a full service and have done 70 miles since. New brake pads were fitted on the rear - green ones. The weather has been good lately so I have been driving with both windows down. I have noticed a rattly / clicking noise coming from the passenger side towards the back of the car underneath. It sounds like something is loose but I can't see what. When I pop it out of gear and coast it becomes quite noticeable.

However, whilst coasting along if you rest your foot on the brake pedal to sort of take up the first few mm of slack the noise stops. This leads me to believe that something has gone awry with new pads. Could this be so and if so what is the cause and cure?

Hoping for some pointers.

Tony


Sounds like it may be the pads rattling in the calipers. In which case, nothing to worry about and it'll probably stop on its own after enough brake dust has built up on the calipers. Do your calipers have anti-rattle springs holding the pads in?

Noodles 4.2

Original Poster:

574 posts

269 months

Sunday 26th January 2003
quotequote all
Thanks for the response Peter,

I am unsure about the anit-rattle springs as I have not done any of the work on the car myself and quite frankly I am not sure how I would check. Can you point me in the right direction?

Since it is only coming from one side do you think I do have these springs and perhaps the garage left them off on one side?

How many miles does it normally take for the dust to build up and stop the noise? The brake squeal at the moment is like a train pulling into a station buts seems to be getting better.

Thanks

Tony

gary judd

2,675 posts

272 months

Sunday 26th January 2003
quotequote all
hi
yep it,s as peter says had exactly the same with mine on green stuff pads
gary and cerb

Noodles 4.2

Original Poster:

574 posts

269 months

Sunday 26th January 2003
quotequote all
Did yours sort themselves out?

TVRlover

89 posts

264 months

Sunday 26th January 2003
quotequote all
Hi,

I think this is fairly commom...

If you take out the pads that are rattling (on that side thats the problem) put some copper grease onto the backs of them - the part that the piston touches and it may cure them from rattling.

Or maybe fit some new springs in between the two pads!

Otherwise like the others say, wait a while or try a new set of pads.

Hope this helps

David

mlumb

2,420 posts

273 months

Monday 27th January 2003
quotequote all
i think most dealers put some gunk (sikaflex/silicon)on the back of the pads to stick them in place to stop the rattles.

mike

williamball

4,404 posts

289 months

Monday 27th January 2003
quotequote all
They all do that sir...eventually.

The pads sit on little steel plates inside the alloy calliper. These will distort over time [with the help of corrosion] so that the pad gets tighter the further away it is from the disk i.e.new pads. You therefore grind down the backing plate on new pads to make them fit. As they wear and move forward in the caliper, they move into the wider gap and then rattle. If that makes sense.

WB

Noodles 4.2

Original Poster:

574 posts

269 months

Monday 27th January 2003
quotequote all
Thanks for all your pointers guys,

I shall try and get it sorted this afternoon since the sun is out.

Tony