Real Time Rear Brake Help Needed

[TequilaMechanic]

Ok big step in right direction but not 100% resolved.

Took off everything and examined the raises that the shoes live on. Looks like old ones had rusted to the hub (see first photo). Wire brushed them and greased and reinstalled. Cleaned up hub flange mating surfaces.

Put the rotor on with a few lug nuts. Rotor still has issues with rotating but only in 50% of positions. In other words, it travels as expected from 12-6 o clock positions and is rubbing from 6-12 o clock positions.

Seems like shoes are flush. Tapped sides lightly to ensure full seat. Would think if it’s a shoe problem, it would affect all positions. Will have look into runout more.

 

[2001LC]

I mentioned earlier, we sometimes get a rub. Where brake drum contacts brake dust shield. Any shiny spots are suspect. Dealerships, cut down rotor/drum on a bench lathe. I pound brake dust shield in just a tad.

Few checks

We also check bearings play.

 

[TequilaMechanic]

I mentioned earlier, we sometimes get a rub. Where brake drum contacts brake dust shield. Any shiny spots are suspect. Dealerships, cut down rotor/drum on a bench lathe. I pound brake dust shield in just a tad.


View attachment 3661946

Few checks
View attachment 3661969

We also check bearings play. View attachment 3661966

Thanks 2001LC; Seems almost certain the rotor is contacting the inner collar of the hub. Looks like we’ve been rubbing recently based on the old rotor and someone had already taken off the collar of the hub from the 4-7 o clock positions (hopefully that was machined off and not done by rotor).

This rubbing probably has been the annoying sound I’ve been hearing occassionally while braking. Had thought it was ungreased shims squealing.

So hammer and chisel time to bend it or do you have a better technique?

 

[2001LC]

Thanks 2001LC; Seems almost certain the rotor is contacting the inner collar of the hub. Looks like we’ve been rubbing recently based on the old rotor and someone had already taken off the collar of the hub from the 4-7 o clock positions (hopefully that was machined off and not done by rotor).

This rubbing probably has been the annoying sound I’ve been hearing occassionally while braking. Had thought it was ungreased shims squealing.

So hammer and chisel time to bend it or do you have a better technique?

View attachment 3662823

Hammer and flat surface chisel, is what I've used.

I'll bet you've rust, that has expanded, between the two plates of the brake dust shield. Which has push the inner plate into rim of drum of rotor. A few well place poundings on rub marks (scraped shinny) areas of inner brake dust shield and a few inches either side of rub. Should give the cleanance you need.

But also, in one of your pictures. You've uneven rub on pads of shoe at top. Rust you've been cleaning off, is likely helping, so will bedding in the shoes. But you may need new OEM shoes, for best results.

 

[TequilaMechanic]

Thanks everyone for the help. After 3 attempts on completing this job, I dropped it off to Toyota. I wasn’t able to bend the lip successfully to allow the rotor to sit flush. They took much longer than quoted to make it right so my ego is less bruised than it normally would be from the drive of shame.

2001LC, you were spot on about the rust in between the two plates.

 

[2001LC]

Thanks everyone for the help. After 3 attempts on completing this job, I dropped it off to Toyota. I wasn’t able to bend the lip successfully to allow the rotor to sit flush. They took much longer than quoted to make it right so my ego is less bruised than it normally would be from the drive of shame.

2001LC, you were spot on about the rust in between the two plates.

So, what did Toyota do and how much did they charge?

Typically, they turn the drum on a bench lathe, removing some of the lip!