Re: Brake rotors stacking up
[Re: fourgearsavoy]
#3002678
01/06/22 06:26 PM
01/06/22 06:26 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,844
S.E. Michigan
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I'm so Damn old, I was trained to turn both rotors and drums in college automotive technology courses.
This reminds me of the pile of rotors my wife's previous Sebring ate over the years. Eventually I gave up any reasonable service strategy and experimented with different brands until, shockingly I finally found one that held up.
So wasteful to just throw the stuff out when there's a slight issue, but no other choice.
Rich H.
Esse Quam Videri
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Re: Brake rotors stacking up
[Re: Powerflow]
#3002700
01/06/22 08:07 PM
01/06/22 08:07 PM
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Joined: Apr 2005
Posts: 4,920 new berlin wisconsin
Mr T2U
master
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master
Joined: Apr 2005
Posts: 4,920
new berlin wisconsin
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the dealership i work at USED to do this 10+ years ago. there is a scrap metal dumpster behind the shop now. it usually gets filled up and hauled away every month. the $$$ go to the owners now. most dealerships and larger repair shops do it this way now.
perception is 90% of reality
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Re: Brake rotors stacking up
[Re: Rhinodart]
#3002728
01/06/22 09:25 PM
01/06/22 09:25 PM
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Joined: Nov 2003
Posts: 10,228 Colleyville
3hundred
I Live Here
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I Live Here
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Posts: 10,228
Colleyville
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The last two times I had my rotors replaced at my Dodge dealer they WOULD NOT turn them, only replace with new. It seems that ALL the manufacturers recommend the same thing, so what has changed? People complaining too much about warped rotors 6 months after they are turned? Chinese steel sucks so much that they cannot be turned reliably? Cheap wheel bearings failing so they MUST replace them also? The last time I bought rotors for the Ramcharger I had them mic the new ones since they already had the mic out to check the old ones, they were just a few thousands over the minimum to be turned. IMHO, just the wear from one set of brake pads lifespan will take the rotor under the minimum specification to be turned.
'68 Fury Convertible '69 300 Convertible '15 Durango 5.7 Hemi '16 300 S Hemi
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Re: Brake rotors stacking up
[Re: 3hundred]
#3002732
01/06/22 09:49 PM
01/06/22 09:49 PM
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Joined: Jan 2003
Posts: 15,350 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,350
Omaha Ne
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Re: Brake rotors stacking up
[Re: Rhinodart]
#3002747
01/06/22 10:13 PM
01/06/22 10:13 PM
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Joined: Jul 2003
Posts: 3,267 Connecticut
1972CudaV21
master
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master
Joined: Jul 2003
Posts: 3,267
Connecticut
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The last two times I had my rotors replaced at my Dodge dealer they WOULD NOT turn them, only replace with new. It seems that ALL the manufacturers recommend the same thing, so what has changed? People complaining too much about warped rotors 6 months after they are turned? Chinese steel sucks so much that they cannot be turned reliably? Cheap wheel bearings failing so they MUST replace them also? It’s less expensive to put on new Chinese rotors.
China is the enemy.
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Re: Brake rotors stacking up
[Re: 1972CudaV21]
#3002750
01/06/22 10:30 PM
01/06/22 10:30 PM
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Joined: Aug 2019
Posts: 9,454 Super Spudsville
Mr PotatoHead
Half Baked
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Half Baked
Joined: Aug 2019
Posts: 9,454
Super Spudsville
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Its all a big hustle for the people who cant turn a wrench, I average 130-150k miles off oem rotors with simple pad changes and light da scuffing on the rotors then and simply drive like ive got some sense.
STOP POTATO HATE!
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Re: Brake rotors stacking up
[Re: Mr PotatoHead]
#3002755
01/06/22 10:44 PM
01/06/22 10:44 PM
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Joined: May 2019
Posts: 6,241 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,241
nowhere
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Its all a big hustle for the people who cant turn a wrench, I average 130-150k miles off oem rotors with simple pad changes and light da scuffing on the rotors then and simply drive like ive got some sense.
I am at 111k miles on the OEM rotors and pads for the work truck. Got over 90k on the OEM tires.
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Re: Brake rotors stacking up
[Re: Mr PotatoHead]
#3002760
01/06/22 11:09 PM
01/06/22 11:09 PM
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Joined: Jan 2003
Posts: 10,555 Freeport IL USA
poorboy
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,555
Freeport IL USA
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I have a pair of brake drums off of a 44,000 mile truck. The shoes looked great, but the chassis was going under something else, so the owner wanted new shoes and wheel cylinders. One rear drum had a little warp and created a noise at slow stopping speeds. Took the drum in to get turned, only one of 6 parts stores in town turns drums now. and then only one guy. The drums only have .060 that they can be turned (even new off the shelf), The 1st cut only cut about 1/4 of the drum. The 2nd cut cleaned up about 3/4 of the drum, The 3rd cut cleaned up the entire braking surface, but that cut was not smooth. The guy took one more small cut to try to clean up the surface, after he replaced the cutting tool. It was just slightly better, but I took it home, it was just under specs. The guy did not charge me to turn that drum ($20 normal cost). My cost on a replacement drum was $60 (the local store was cheaper then what was available on line right at the time), but would have had to be ordered. Before Dec I priced out those drums and they were only $42 each then, but the week later the price jumped to $60. The front rotors only have an allowable .060 cut as well, try getting a warp out of a rotor in a .060 cut once, at .060, you would be lucky to get a smooth cut on both sides from a rotor that wasn't warped. By the way, its cheaper these days to buy a rotor kit, (both rotors, and pads), then it is to buy just rotors. You can get the master front brake kit that included calipers and hardware as well as the rotors and pads for less the the calipers and the rotor kits separately.
If the brake noise come back, the customer gets new drums, at whatever they cost then. I spent a couple hours jacking with that drum for a questionable return. Would have been more cost effective to order the new drums before the project started.
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Re: Brake rotors stacking up
[Re: 1972CudaV21]
#3002778
01/07/22 01:16 AM
01/07/22 01:16 AM
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Joined: Oct 2005
Posts: 4,945 WI
Dcuda69
master
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master
Joined: Oct 2005
Posts: 4,945
WI
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The last two times I had my rotors replaced at my Dodge dealer they WOULD NOT turn them, only replace with new. It seems that ALL the manufacturers recommend the same thing, so what has changed? People complaining too much about warped rotors 6 months after they are turned? Chinese steel sucks so much that they cannot be turned reliably? Cheap wheel bearings failing so they MUST replace them also? It’s less expensive to put on new Chinese rotors. Assuming the originals came from????
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Re: Brake rotors stacking up
[Re: A12]
#3003089
01/08/22 07:49 AM
01/08/22 07:49 AM
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Joined: Dec 2004
Posts: 10,553 Rittman Ohio
fourgearsavoy
OP
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OP
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Rittman Ohio
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Here is what usually happens in our shop. The car is in the lube bay and they notice the brakes are worn under 4 mm. The writer sells the job with rotors because they don't trust the lube guys ability to judge the condition of the rotors. I don't machine a lot of rotors anymore maybe 1 or 2 sets a week. I look at it this way they only pay me 1.8 to machine rotors,replace pads,and service the arbors and pins. The pay me 1.5 to replace the rotors,pads and service the arbors and pins So is it worth it for me to set up the lathe and machine some rusted rotors for 0.3 ? Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: Brake rotors stacking up
[Re: fourgearsavoy]
#3003099
01/08/22 10:12 AM
01/08/22 10:12 AM
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Joined: Nov 2007
Posts: 21,822 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,822
Kirkland, Washington
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Here is what usually happens in our shop. The car is in the lube bay and they notice the brakes are worn under 4 mm. The writer sells the job with rotors because they don't trust the lube guys ability to judge the condition of the rotors. I don't machine a lot of rotors anymore maybe 1 or 2 sets a week. I look at it this way they only pay me 1.8 to machine rotors,replace pads,and service the arbors and pins. The pay me 1.5 to replace the rotors,pads and service the arbors and pins So is it worth it for me to set up the lathe and machine some rusted rotors for 0.3 ? Gus The customer has no say in the decision?
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Re: Brake rotors stacking up
[Re: Pacnorthcuda]
#3003191
01/08/22 03:00 PM
01/08/22 03:00 PM
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Joined: Jan 2003
Posts: 20,545 Eagle, Idaho
Neil
The Doctor is in.
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The Doctor is in.
Joined: Jan 2003
Posts: 20,545
Eagle, Idaho
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Wonder how many warped rotors are due to poor installation and bad driving habits? Brake dragging by people who drive with both feet is still a thing.
See all these idiots with nobody behind them who drive all gas right up to the last moment at red lights and stop unnecessarily harder than they need to. I see a light change, or about to change, up the street and if there is nobody behind me I roll off the throttle and coast. Saves on brakes, and if done right sometimes (in rural areas or low traffic times) the light will change again and you don't have to come to a complete stop.
Also see a lot of newer vehicles with excessive brake dust on their wheels. Must be some aggressive brake pads or hard drivers?
Last edited by Neil; 01/08/22 03:01 PM.
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Re: Brake rotors stacking up
[Re: Neil]
#3003204
01/08/22 03:31 PM
01/08/22 03:31 PM
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Joined: May 2019
Posts: 6,241 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,241
nowhere
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Also see a lot of newer vehicles with excessive brake dust on their wheels. Must be some aggressive brake pads or hard drivers?
Undersized brakes with aggressive pad compound to save a few pounds for CAFE.
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Re: Brake rotors stacking up
[Re: Sniper]
#3003247
01/08/22 06:46 PM
01/08/22 06:46 PM
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Joined: Jan 2011
Posts: 15,859 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
Joined: Jan 2011
Posts: 15,859
Central Florida
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Our Public Works has piles like this. I've never asked if they ever turn any and only scrap when they are beyond that.
Facts are stubborn things.
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Re: Brake rotors stacking up
[Re: larrymopar360]
#3003266
01/08/22 08:39 PM
01/08/22 08:39 PM
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Joined: Dec 2014
Posts: 5,812 ohio
ruderunner
master
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master
Joined: Dec 2014
Posts: 5,812
ohio
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With nearly 30 years in the business, I can confidently say most guys don't know how to turn rotors. That's where the myth that turning rotors let's them warp came from.
They turn rotors wobbly, you won't notice it at first but eventually the pads try to wear the rotors straight again and the crookedness shows up. As to Gus' pictures , here in the Salt belt, rotors tend to rust away before getting wrapped. By the time you turn out all the rust pits, the rotors are under spec.
I have my own lathe, I turn my own rotors and drums.
Angry white pureblood male
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Re: Brake rotors stacking up
[Re: fal3]
#3003574
01/09/22 08:03 PM
01/09/22 08:03 PM
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Joined: Jan 2003
Posts: 10,555 Freeport IL USA
poorboy
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,555
Freeport IL USA
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A12 has it. I've noticed with brake shops (Brake Check, etc) have lifetime warranties for their brake jobs but are replacing the whole brake system from firewall back. Coupla years ago, friend took his Chrysler min-van to Midas for brakes. Midas offered the lifetime warranty, so he took it. Replaced the entire brake system, even the master cyl. Lawyers-ugh. And 10 years ago, the Midas lifetime warranty cost 2x what the original brake repair cost, they actually charged you double up front for that warranty. Read the warranty price quote one time, it will shock you with the stuff they have gotten away with the last 50 or how ever many years they have been doing it.. The last 3 vehicles I've built get the entire brake system replaced, including the master. That last one I didn't replace the master on, the master failed about 2 months later. Why take the chance anymore. The new stuff is of questionable quality right out of the box, who knows what the "last guy" bought, and when it was bought? Cover your butt, the stuff that was new out of the box reduces your liability.
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