Chinese Rotor Blew Apart (Page 1/1)
Dennis LaGrua MAY 04, 07:30 PM
I have a friend who sent me a picture of a Chinese made rotor that just came apart on his car. I have been in the car hobby a long time and I have never seen anything as bad as this. When buying repair parts it is getting quite difficult to find quality items.


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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

[This message has been edited by Dennis LaGrua (edited 05-04-2022).]

RWDPLZ MAY 04, 08:20 PM
I worked at a parts store for a while, I've seen that bad and worse.
Skybax MAY 04, 09:17 PM
That photo is why I always buy the best rotor available for any car (severe duty) with highest carbon content (so they don't warp / break) and go with a middle grade OEM replacement semi-metallic pad.
theogre MAY 05, 12:23 AM
This is often more then just "Chinese Rotor Blew Apart."
I've seen this happen before and w/ all US parts.

Look at the rotor pad working area how way worm out... Likely No pad or very worn and back metal or had rivets hitting if has them.
Caliper likely have problem(s) too trying to flex/bend the rotor. Like Fiero sliders are bound bad and caliper shell can't move and piston pressure try to force rotor to push toward the wheel.

Either/both can "overload" the rotor and break starts at any stress points.

A more common fail is at the part where hat meet the rotor working area.
For above reasons plus Some brakes when pads are bad the back metal or caliper itself act as parting off cutter for a lathe. When metal is cut thin finally break.

Drum brakes, often still use for rear axle, can have similar failures and drum can blow out.

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave

tnkgnr MAY 06, 09:12 PM
I bet that sounded like a train wreck.
Rhodesia1977 MAY 07, 09:53 PM

quote
Originally posted by Dennis LaGrua:

I have a friend who sent me a picture of a Chinese made rotor that just came apart on his car. I have been in the car hobby a long time and I have never seen anything as bad as this. When buying repair parts it is getting quite difficult to find quality items.



Looks like it was made using the finest Chinesium metal available!
Dennis LaGrua MAY 08, 10:19 AM

quote
Originally posted by tnkgnr:

I bet that sounded like a train wreck.



My friend told me that when the rotor exploded it sounded like a truck crashed into him. He then pulled over and called a flatbed to get the car home. He was lucky that this happened around town and not at highway speed. This experience only confirms the type of cheap garbage parts being imported these days.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

reinhart MAY 11, 02:06 PM
Luckily I have about 12 spare used OEM rotors for my 88s
InTheLead MAY 11, 03:02 PM
Well the pad is very worn, the rotor isn't wearing evenly and it's clearly had a lot of salt and rust.

Not saying the rotor isn't poor quality, just observing what's in the picture.
82-T/A [At Work] MAY 12, 11:06 AM
That is horrible looking... I've never had a rotor do that, but I can only imagine how damaging that could be to the wheel and everything else...