Lateral Runout Rear - 0.15mm (Or Why Rabestos is Shit)

So Rockauto sent me new discs (Raybestos) when I replaced that messed up caliper batch. Only now I realized that a disc is rubbing (and NO it's not the caliper ). I did a dial test on the dic, the hub flange. The hub/bearing assemlby is ok - I actually cleaned it properly with a dremel . The disc has 0.15mm difference from high to low (aka lateral runout) and it's "kissing"/rubbing ever so lightly against my brake pads. When I push the wheel it does about 3 turns then stops where it rubs. The disc gets a tiny bit warm. Can I drive like this? Should I buy one of those correction shims? I feel no shudder or anything.

Btw the maximum runout in the repair manual is 0.15mm - I'm maxed out.

The other side also does the same but much less I think. I can maybe 4 turns on the better side vs 3 on the "bad" side. Seems like a minor thing but it looks like it will wear my pads unevenly and the pad is starting to make marks into the disc.

Andrei

 

I was cleaning it with some tiny sandpaper drum, and a tiny wire wheel, and sandpaper. I was reading perfect near the hub, inside the bolts, and 0.01-0.02 mm at the edge of the flange (and that in a couple of spots). The hub seems to be near perfect.

I switched the position once. I did a 180 thinking it would cancel things out - IF there was a hub issue. But instead I got the same wobble - touching at point say 0 degrees, then touching on the other face at point 180 degrees. So just like I measured: the disc is slanted, the hub is good.

Ironically I found these instructions - and from Raybestos too (lol???) - about lateral runout. And just like they sayin p1, the disc wobles back and forth touching the brake pads intermittently - I can see it by eye as it happens too! And I'm starting to get weak traces of marks as the pads start to dig in.

 

So, you're saying: go to the deal to shave the discs? I suppose any mechanic should have that machine?

 

Me neither frankly, shit quality products . I know I'm within manual's spec - but it doesn't seem good to me honestly.

Shims are 40-60 bucks cad at Napa. I might as well find a mechanic to shave my rotors like Chap suggests.

Although! I'm thinking. If I buy the shim, theoretically, they are reusable for future messed up discs. So I might go to NAPA first.

 

Yeah - could be a poor man's thing. Although, doesn't seem that inexpensive.

I see Kenny's point above, with the shim I could end up way off the center, so I'm reverting back to your suggestion Chap.

 

To take a grinder to the disc, you need some rotation in that disc. And even like that getting it even functional won't be easy, it will be ripples, or a shimmed cut, because in some spots the hand will press further. I tried to get a piece of lumber flat with a belt sander for hardwood floor, and I had more than 0.5mm variations easily.