New brake pads

[paulbell6]

Hi all, just fitted some new "Green stuff" pads and they seem to trap the discs, I can rotate the discs but it takes more effort than I would have thought. The discs are original as are the calipers, and I have fitted new pistons and seals, and the pistons are completely retracted into the calipers. I expected there to be a small amount of clearance initially between the pads and discs which would be taken up when pressure is applied for the first time. The situation is better if I remove the anti squeal shims. On the back of the pad there is a black sticker which is quite thick, which I am tempted to take off as I am not sure why it is there.
Is it normal for the pads to clamp the discs initially and then free off with use?

Many thanks as ever. Paul

[loudnproud]

Remove the sticker as you say no point being there also leave out anti squeal shims put a thin smear off copper ease on back of pad obviously dont get any on face of pad or disc this should stop any squeal and in 500 mile or so you should be able to refit anti squeal shims if you feel the need.

[SUTTY1]

Just try a short run round the block and check wheel spin again this might be enuogh to free them up. The thick black sticker on the back may be an anti-squeal pad, check with the supplier, steve

[new to this]

i have the same green stuff pads, not fitted mine yet just been to look and they have the black sticker on the back as well,not sure what the sticker is for either as sutty1 said may be anti-squeal pad

dave

[martin]

As Sutty says, the sticker is an anti-squeal device, the face of Green Stuff pads has a running in layer which quickly wears off as they bed in, leave as they are and just use the car for a bit. I'm on my second set of Green Stuff and had no troubles at all. Martin.

[KOY 23]

Same as Martin.

Would suggest that you leave the sticker on and remove the shims if too tight, which is how I am running mine at present.

John.

[ChasR]

It could also be down to not fully retracting the pistons back. From what Martin said it could be to do with the bedding in process.

I know on my modern that if I use genuine pads when compared to OE items even with the pistons fully pushed back (easier on a single piston caliper) the pads still bind the discs slightly. With 'OE'/pattern pads the piston can be back 'almost' fully and the pads will go in with ease. Sounds crazy but I still see more mileage out of the genuine items.

However you decide to go about it I would also use brake specific grease (Ceramic grease available from most motor factors). It is nicer to work with the brake system next time around with this stuff when compared to copper grease (for me anyway, copper grease seems to congeal into a stubborn goo).

[martin]

It could also be down to not fully retracting the pistons back. From what Martin said it could be to do with the bedding in process.

I know on my modern that if I use genuine pads when compared to OE items even with the pistons fully pushed back (easier on a single piston caliper) the pads still bind the discs slightly. With 'OE'/pattern pads the piston can be back 'almost' fully and the pads will go in with ease. Sounds crazy but I still see more mileage out of the genuine items.

However you decide to go about it I would also use brake specific grease (Ceramic grease available from most motor factors). It is nicer to work with the brake system next time around with this stuff when compared to copper grease (for me anyway, copper grease seems to congeal into a stubborn goo).

It may do, but it stops squealing brakes, and it's cheap, and has extraordinary anti-corrosion properties, I use it on my cornflakes ! M.

[KOY 23]

It may do, but it stops squealing brakes, and it's cheap, and has extraordinary anti-corrosion properties, I use it on my cornflakes ! M.

Does it cure constipation?

[martin]

Does it cure constipation?

Yes, and it keeps your arse rustproof !

[paulbell6]

Thanks for the tips and info Gents, all duly noted. Had to chuckle about the comment from Sutty1 about " a run around the block", might be a tad difficult as it has no wheels, engine, gearbox etc. I might get my trainers on and go for a jog to see if it does the trick!

Thanks. Paul

[SUTTY1]

With a scouse sense of humour and in a true scouse accent " ar ay larr" i didnt now it wasnt on the road