Caliper Bolts grinding against Rear disc

[Darryl_1983]

So i changed the rear disc a couple weeks ago on my 182 with genuine disc and pads from Renault, also ordered new spacers and nuts from George. Everything has been fine and i've probably done 6-700 miles on them.

Last night i nipped out for a drive to test out my new tyres, and as i was heading home i noticed a grinding noise coming from the passenger rear wheel, I assumed it would be a stone or something between the pad and disc.

After taking the wheel off and looking around i noticed that the caliper bolt was now touching the back of the disc.

Tried taking pictures, but as it was around 10pm, the darkness made it difficult.

Rear of disc:

End of caliper bolt:

I managed to find a couple of washer (taken of my squat rack/cage), that spaced the bolt back about 1mm.

However i'm lost to explain how this could have happened, and whether there is a problem somewhere else causing this that i need to look into. Anyone got any ideas?

 

[bloke]

Have you got the tab washer that holds the two bolts on?

 

[Darryl_1983]

Have you got the tab washer that holds the two bolts on?

Yes, there is a long washer between the top and bottom bolt in place, I've just added the additional washer to the back of this.

 

[bloke]

Odd, spacer is definitely behind the disc as well?

 

[Darryl_1983]

Yep, I purposely ordered new spacers when i bought the disc and pads to replace them. I was 100% happy I'd put it all back together correctly, but this is making me question myself now.

I changed the rear disc a couple of times on my old 182, so i've done the change 3 times now.

The wheel/disc, still turns freely and smoothly now the bolts are out the way.

The strangest thing is that it's been fine for over 2 weeks, then all of a sudden it started rubbing last night. The only thing that has changed in that time is that i had a full set of tyres fitted on saturday morning, though i'm struggling to think of why that would change anything.

 

[krappy]

Check that the bearing circlip hasn't popped and allowed the rotor to move. I had this happen to me when I had a bearing replaced and the circlip wasn't set in the groove properly, car drove fine with no issues for weeks until the circlip finally popped.

TBH if they were genuine rotors I would be surprised as I thought they came with the bearings prefitted iirc? But you never know...