Caliper grinding on wheel (What all controls the position of rotor and brake caliper?

[dblackston]

I have the Baer Eradispeed Big Brake Upgrade on the car so definitely not stock brake setup and 19 wheels on the car. I bought a set of stock torque stars and brand new tires. Went to put them on and all clearance seemed fine, went for a drive and the passenger side wore a nice grove in the wheel and scrapped up the caliper pretty good. The drivers side is perfectly fine, no rubbing and plenty of clearance for the larger caliper.

I pulled everything apart and visually everything looks "ok", did a few shake tests and the wheel bearing seems to have a little bit of play but nothing crazy. I believe the CV axle needs to be replaced as well just based off of the condition of the boots but no too much play there as well. I took measurements from each side and the passenger side does seem to sag about 3/4" but think that would be more the strut than anything.

Basically what all controls the position of the brake setup inside the wheel to cause it not to clear properly as the drives side has ample room? What should I be looking for to get it corrected? Thanks in advance!!


Passenger side:

Drivers side:

 

[spazzz]

Your caliper in the top pic(passenger) is sitting farther out,away from the bracket compared to the bottom pic.

It must be the bracket or caliper on the passenger side. They are not the same fitting, easy to see in pics

 

[spazzz]

Not only that but your pads must wear uneven. Maybe thats why there is a groove in the middle of the rotor

 

[dblackston]

Ah yes, thank you for that. I didn't even notice and when I was trying to move stuff around everything felt tight. I was in quite the hurry to go get emissions and get to the DMV for plates since I only had one day off to do it all or wait til next month so just threw the 19's I had back on the front and went and got it all done. I went out last night with a pry bar and sure enough was able to push the caliper down all the way, should be able to put the torque stars back on now with no rubbing.

Now I need to figure out how to fix the awful rattle that is coming from the brakes. I will have to do more reading on the Baer setup as it was all on the car when purchased and see if there are anti rattle clips or if something is loose. Brakes all seem to function properly but the fact the caliper can move that much also is a little concerning.

Thanks again.

 

[markpa]

Might want to recheck your bolts. Not sure you should be able to push the caliper down with a pry bar.


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[dblackston]

That was my thought as well but apparently they are a "sliding design" and the only thing that holds the calipers on is a single pin at the top that allows you to hinge the caliper up to remove brake pads. From what I can tell these Baer PBR calipers are the same they run stock on like 03 cobras and turns out I am missing "Anti Rattle" Clips. Ordered a few from EBAY for a cobra setup and will see if that resolves the noise issues. If so, next have to find pads that don't cost $130 from Baer, maybe they are the same as cobras and can get cheaper pads from the parts store, we shall see.

 

[markpa]

Never heard of 1 bolt holding a caliper on. ??? But I have never seen those either.


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[dblackston]

They are full-floating units. It actually don't even hold the caliper on from closer inspection (well sort of does but not really)...all the pin does is keeps the pads in place on the rotor bracket which in turn hold the caliper on as the pads have spring clips that push in to the pistons. The caliper and attached pads can be pulled straight off the rotor once the pin is removed, not sure if I like the setup but it is very pricey and an upgrade over the stock brakes for sure so don't know if I want to take the time to switch it all out. The caliper did move and was rubbing again but was able to pull over and push it back down in place, there maybe something else I am missing like a clip or something that holds it down better or maybe needs new pads for the proper width to hold it in place. But for the time being I guess I will just keep pushing it down out of the way when needed. At least it contacts the wheel and wont be able to work its way all the way off.