Pug 205 gti brake caliper, pads, binding

Hi,

I had a front brake caliper replaced the other day.

The front pads, both sides, were also replaced.

I note that on occasions some binding occurs at the front wheels.

Is this to be expected because the new brake pads will need to 'bedin'?

Thanks.

A
Reply to
species8350
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One of the pads might be getting stuck in the caliper did they rub the paint of the pads before fitting??

Reply to
Chris

int of the pads before fitting??

Hi,

It only happens on occasions.

The garage that did the job employ experienced and well respected mechanics. Don't know the procedure they followed.

I expect that they changed the front pads because the existing ones were badly worn.

I imagine that new pads would put more pressure on the disks untill some 'beddingin' occurs.

I suppose that they might occasionally stick to the disk. May be more likely if they are new.

Any thoughts.

A
Reply to
species8350

paint of the pads before fitting??

--=20 Chris

Reply to
Chris

thick in places and you have to clean the ends to stop the pads sticking inside the caliper also use copper slip, we always clean the ends so they move well in the cradle when pressed with the pistons in the calipers.

of the pads before fitting??

You should not be getting any degree of binding that you are detect when driving. Chris is absolutely right about the paint and the need to remove it so the pads are free to slide. If the binding is on the side where the calliper has not been replaced, then this one might be sticking too. Take the car from cold, for a run of a mile or so on quiet roads where you are unlikely to have to apply the brakes. At the end of the run say in a layby, slow down on the gears and come to a halt using the hand brake. Carefully feel the temperature of the discs. If either are too hot to touch, then you have a binding problem that needs sorting out.

btw Pads exert as much pressure as you put on via the pedal. Bedding in will microscopically increase the contact area and hence the braking for the the same pressure. The only time pads might stick to the disc is after being parked up over night following wet conditions when surface rust or ice can form. This clears instantly once the car is rolling.

Bob

Reply to
Bob Minchin

thick in places and you have to clean the ends to stop the pads sticking inside the caliper also use copper slip, we always clean the ends so they move well in the cradle when pressed with the pistons in the calipers.

of the pads before fitting??

You should not be getting any degree of binding that you are detect when driving. Chris is absolutely right about the paint and the need to remove it so the pads are free to slide. If the binding is on the side where the calliper has not been replaced, then this one might be sticking too. Take the car from cold, for a run of a mile or so on quiet roads where you are unlikely to have to apply the brakes. At the end of the run say in a layby, slow down on the gears and come to a halt using the hand brake. Carefully feel the temperature of the discs. If either are too hot to touch, then you have a binding problem that needs sorting out.

btw Pads exert as much pressure as you put on via the pedal. Bedding in will microscopically increase the contact area and hence the braking for the the same pressure. The only time pads might stick to the disc is after being parked up over night following wet conditions when surface rust or ice can form. This clears instantly once the car is rolling.

Bob

Reply to
Bob Minchin

very thick in places and you have to clean the ends to stop the pads sticki= ng inside the caliper also use copper slip, we always clean the ends so the= y move well in the cradle when pressed with the pistons in the calipers.

e paint of the pads before fitting??

Thanks for the information.

I imagine that these mechanics would have cleaned off any paint.

If it happens again, and I expect that it will, I 'll return to the garage.

Regarding which brake is binding, I can't tell. I only know that the problem appears to comming from the front.

I noticed this problem when the car was rolling freely. It stopped more quickly than I expected and I thought that the car was being 'held'. But the problem appeared to resolve.

It is now a case of wait and see, however, I don't believe that these problems resolve themselves.

Best wishes.

Thanks.

A
Reply to
species8350

s very thick in places and you have to clean the ends to stop the pads stic= king inside the caliper also use copper slip, we always clean the ends so t= hey move well in the cradle when pressed with the pistons in the calipers.

the paint of the pads before fitting??

Something that I forgot to mention.

Whe I returned from the journey when I noticed what I thought was binding at the front I did put my hand on the centre of the wheel to check the temperature. I noticed that it was warm, which is what I expected. I then checked the other side and the temperature was about the same. I know that I did not touch the brake pads, but maybe this is an encouraging sign? It dosen't of course explain the transient binding.

Reply to
species8350

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