Annoying grinding noise after new pads Options

[andreic]

I installed new brake calipers and pads in the front on my 1.7L 914 (1972) after I discovered that one of the calipers was sticking. The calipers were high quality rebuilds from PMB.

Now I have this super annoying grinding noise whenever the car is moving. The noise is like something is grinding against the pads. It is there no matter if I press on the brake (hard or soft or at all), but it gets a bit louder if I step on the brake.

I suspect that the new pads are a bit wider than the old ones. When looking at my disks again today I noticed that there is some surface rust on them, about the first 1/4" both from the outside edge and from the inside. I know I should have had my brake disks turned when I changed the calipers, but did not do it.

My question is: will this annoying noise go away with a bit more driving, after the pads wear out a bit, or do I need to remove the calipers again, take the brake disks off to be turned, and reinstall everything?

Sorry for the low quality pic...

[Spoke]

Sounds like you went top shelf with restored calipers from Eric with new pads. Those rotors should be replaced with new ones. I wouldn't turn any rotor these days as new rotors aren't that expensive and turned rotors are now that much thinner.

Replacing rotors also gives a good look at the bearings too. Maybe replace those as well and have all new rotating and brake components up front.

[porschetub]

Sounds like you went top shelf with restored calipers from Eric with new pads. Those rotors should be replaced with new ones. I wouldn't turn any rotor these days as new rotors aren't that expensive and turned rotors are now that much thinner.

Replacing rotors also gives a good look at the bearings too. Maybe replace those as well and have all new rotating and brake components up front.

Let the pads bed in to the rotors or if not in spec replace them ,can't remember the wear limit think its like just over one millimeter from new thickness...don't quote me.
A lot of folks are unware the small amount the calipers move toward the disk,the piston seals dictate that.
I'am never to fussed about decent worn solid rotors with a pad replacement but vented ones are a safety issue cause they can fall in half (IMG:style_emoticons/default/sad.gif) .
Recently did all the disks and pads on my Audi now that is not cheap ,not much left from 900NZD fitted ,a powerful/heavy car the 914 couldn't be more different.