Rear Brake Issue - Can't Get Rotor To Seat Tightly

[IGLUZJ]

Hey y'all,

Doing a rear rotor + pads jobs, and for some reason I can't get the driver side rotor to seat tightly.

I'll see if I can upload some videos here to show, but it basically wobbles around the bottom of the hub, seemingly regardless of where the hub is turned.

I tried loosening the parking brake shoe by pushing "in" on the outside (side furthest from the center of the hub) of the cog wheel. Still no luck there. I also noticed I can kinda moved the parking brake shoe around and make it off center. Not sure if that's what's stopping the rotor from going in tightly or what.

Tried tightening lugs with the another rotor in reverse direction to act as a spacer and the rotor still wouldn't sit tightly.

Not sure if this will just be fixed by putting a wheel on? It looks to be in far enough that it's all the way pressed against the hub. Just not sure why it has room to wobble.

 

[Bisho]

Totally normal. Get your caliper on and parking brake properly adjusted, put on the wheel, and it will snug up fine. Give mother nature a little time and you'll be cussing about how hard it is to get it off in the future.

 

[IGLUZJ]

Appreciate it. Probably answering my own question here, but is driving it around what makes it seat so much that you need to use those screw holes to take a rotor off?

 

[Bisho]

Good old dirt, grime, and rust.

 

[badlander]

I think it is NOT normal. If it is not seating flat then something is in there preventing it from doing so. Tightening it down in that condition would end up causing interfering parts to rub or grind and be damaged when the wheel rotates.
Remove the drum and inspect the assembly to see what is installed incorrectly or not seated properly.
The emergency brake shoes should rest flat against the backing plate. Make sure all interlocking tangs and slots on shoes and adjuster ends are in line and fully seated. If not inline and seated any of these can cause the shoes to pull away from the backing plate.

 

[IGLUZJ]

I think it is NOT normal. If it is not seating flat then something is in there preventing it from doing so. Tightening it down in that condition would end up causing interfering parts to rub or grind and be damaged when the wheel rotates.
Remove the drum and inspect the assembly to see what is installed incorrectly or not seated properly.
The emergency brake shoes should rest flat against the backing plate. Make sure all interlocking tangs and slots on shoes and adjuster ends are in line and fully seated. If not inline and seated any of these can cause the shoes to pull away from the backing plate.

Yeah, I probably could've been more clear in that the new rotor is able to be fully pressed against the hub, it just wasn't "sticking" and I was able wiggle it a little and take it off without needing to use the screw holes to break it free. But from what I understand, the reason it gets "stuck" to the hub and needs those M8 screws to get it off probably from driving it.

I snugged up 3 lug nuts to keep it in place while I put the caliper and new pads on and it'll all fit fine. With the wheel on it spun without any hangups and I wiggled it back and forth and it didn't have any play either. So I was probably overhinking the whole thing.