Worn rotor….

Joined
Mar 18, 2008
Messages
164
Location
KC MO
I’ve seen these posts but this is a first time in person for me. I don’t know how you could drive it to this point and not feel something wrong. It actually passed state inspection within the last year too. Other side was on its way but not quite there yet.

IMG_3242.webp
 
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Back in the '80s, my friend asked me to check out his car (a '74 Impala) which he was lending to a mutual friend for a road trip.

I had never done disc brakes, and took the car to the tune-up and oil-change shop I'd worked at a few years before for a brake inspection. The owner had dropped the franchise and gone independent, and had expanded into brakes as well.

They put the front wheels on a fancy machine which spun the tires and then measured the efficiency of the brakes when they were applied.

The brakes passed with flying colours, but the brake tech removed a wheel anyway for confirmation.

There was no friction material left on the pad - it was metal on metal, but made no unusual sounds. The brakes still felt fine and performed well.

I took the car home, and did my first disc brake job.

All that to say, it's unusual but not impossible for brakes to be shot without any symptoms.

However, I can't imagine a worn-through rotor not sounding and feeling awful.
 
It almost looks like the outer surface fell off. It's worn so evenly.

How is a rotor like this made? A one piece casting? Or inner surface welded to outer surface? I thought it was a single piece of cast iron but not sure.
 
I didn’t take a pic of the other side but it still had the rotor face, granted it was only about 1/16 thick but it was still there.
 
Some states inspection procedures are a complete joke. I will say Rhode Island’s is pretty comprehensive. Especially within the last few years.
 
Back in the '80s, my friend asked me to check out his car (a '74 Impala) which he was lending to a mutual friend for a road trip.

I had never done disc brakes, and took the car to the tune-up and oil-change shop I'd worked at a few years before for a brake inspection. The owner had dropped the franchise and gone independent, and had expanded into brakes as well.

They put the front wheels on a fancy machine which spun the tires and then measured the efficiency of the brakes when they were applied.

The brakes passed with flying colours, but the brake tech removed a wheel anyway for confirmation.

There was no friction material left on the pad - it was metal on metal, but made no unusual sounds. The brakes still felt fine and performed well.

I took the car home, and did my first disc brake job.

All that to say, it's unusual but not impossible for brakes to be shot without any symptoms.

However, I can't imagine a worn-through rotor not sounding and feeling awful.
OMG 😱 I worked at a tune up shop in the 80's too!
 
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