Pug 107 (currently kidnapped), citroen relay and '14 Vespa gts ie 125

[Hooli]

They've been using those callipers on Fords for about 30 years now! They look the same as I had on a '84 Sierra.

[paulplom]

The brake squeak/grind is back worse than ever. It does it in reverse without pressing the pedal as well.
Am I right thinking it's a calliper sticking? If it is, how do I find which one it is?
The pistons retracted okay when I stripped them the other week.

[SiC]

If it's sticking, one disc/caliper will be noticeably hotter than another. Got an IR thermometer?

[paulplom]

I have yes. Good thinking.
Edit: it's in the bastard van though.

[Eddie Honda]

Do a few thousand miles and see which pad is fucked.

[paulplom]

It's a bit embarrassing. Everyone looks around at you.
Unless that's just the car itself of course.

[Eddie Honda]

Come on now, jack it up and spin each corner!

[Hooli]

The brake squeak/grind is back worse than ever. It does it in reverse without pressing the pedal as well.
Am I right thinking it's a calliper sticking? If it is, how do I find which one it is?
The pistons retracted okay when I stripped them the other week.

Could drums full of shit too, at least I think I remember that happening years when I last owned anything with drums. I assume as this is so small it's got drums on the back?

[AutoshiteBoy]

Shit pads. Too much metal content in the friction material.

[paulplom]

It only happens slowing down from about 20mph. The handbrake doesn't affect it so it's coming from the front.
They are very recent discs and pads as well.
The callipers are only £30 each. I might just change them both.