hyperv6

Does it look like any water is getting in or is it just dust? I wonder if some lube on the adjuster would also keep it from binding up.

sleeper

hyper-

mine were dry, but did have brake dust, (so they were working enough to make brake dust, that was washed off with Brake Kleen.

My adjusters have factory grease on the threads & are free to adjust on back up/hit brakes dealios. They just don't... I think I have em spoiled..

solman98

Pretty much the same here, just dust. I think that might prevent the adjusters from working properly the more that gets in there. Mine were way off.

Gas Man

I tell ya, sometimes it's the brand of aftermarket rotors. I had this happen to me once. 3 sets of rotors from 2 stores, same brand. ALL WARPED right from the box. Bad QC for that company and/or somebody said due to stacking the new rotors flat instead of on end.

Either way, I switched brands and those rotors were good right out of the box.

Something to consider.

sleeper

solman- Initially my brake shoes were way out as well..

(food for thought) Since the adjuster winds out from it's enclosed threaded other half, & only then exposing more threads on the adjuster rod.. I can't see how brake dust should affect their working.

(edit): If they needed to wind IN, yes dust could restrict their movement.

Of course if you meant dust between the lining & drum, Yes that could be the problem..

And agree cleaning them out, is best...

pboboige

Good info. I've only had my 07 HHR a short time and haven't tackled the issue yet. I was thinking that softer brake pads might help after changing the rotor. My theory is that the rotor warps because of overheating, as most manufacturers use a hard pad. The overheating could also cause rotor cracking or warp if they get hit with water while hot.
Does that make sense; could it be a common contributor to the pulsating problem?

jdjaa1959

I'm in agreement with you also now that I read your post. I do recall some hard stops
With less noticiable " pulsing"