rotor machining
hey all.. was just wondering what you thought about those guys that do mobile disk rotor machining.??.
has anyone used them before? i just need my front driver one machined. do i have to do both? cause the other side is perfect. nsw,sydney
Donati..Whoa Green
There's no difference from the mobile guys to a workshop mechanic, all just a fancy lathe. But if you just have standard rotors, probably about the same price to just get a new one.
-Democracy must be something more than two wolves and a sheep voting on what to have for dinner.
James Bovard, Civil Libertarian (1994)
-Giving money and power to government is like giving whiskey and car keys to teenage boys.
P.J. O'Rourke, Civil Libertarian
-Government's view of the economy could be summed up in a few short Phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.
Ronald Reagan (1986)
Real cars are steel cars.
You cant just machine one side only. Do both or replace both.
If not, you may get uneven braking from side to side and this will cause the car to pull under braking.
Basic rule with brakes is: "What you do to one side, do to the other"
If I told you I was a compulsive liar, would you believe me?
+1 what he saidOriginally Posted by RX25SE
"..of mice and men.."
In the interest of public safety: Also +1, ^^^ what he said.
On the 7th day, God created Holden, then on the 8th day, God created Ford, to keep idiots out of Holden's.
Its always better to renew the disks as machining them is probably nearly as dear as the cheaper new ones cost anyway.Ive seen them advertised for around $55 or thereabouts at supercheap which is just a standard commodore replacement disk.A lot better choice than machining old disks.They can also end up out of balance a bit after they machine them.As mentioned above replace them as pairs only.When it comes to your brakes you dont want to muck around.Renew anything that is worn out.Simple and safe.
As long as the rotor is not undersize after machining, it will be safe to use again. I've machined hundreds of rotors in my career.
The brake bloke around the corner from me machines 2 rotors for $50. Can't beat that.
I'd buy second hand genuine rotors (wrecker - $10 each) and have them machined rather than buy chinese versions from Supershit auto.
The ones I saw were australian made.(DBA I think).They have the little green sticker that certifies they are an aussie product.Only fools go cheapskate when it comes to safety items.The cheaps**t disks you mention are mostly on ebay.
Last edited by Brett_jjj; 05-05-2010 at 01:33 PM.
help... i ended up just getting a cheap single rotor just to get me out of trouble cause it was really bad and minimum dollars..anyways im outside now trying to put the new one on..but now im stuck. remember it a VS commodore, front driver side, I undid the bolts that hold that brake callipers, two in the front and two bigger and harder ones that held the other half of the brake caliipers..they are all removed.. should i just be able to pull the whole rotor out now??? if I am, it aint buddging.. have I missed another set of bolts?? help~~~~
help... i ended up just getting a cheap single rotor just to get me out of trouble cause it was really bad and minimum dollars..anyways im outside now trying to put the new one on..but now im stuck. remember it a VS commodore, front driver side, I undid the bolts that hold that brake callipers, two in the front and two bigger and harder ones that held the other half of the brake caliipers..they are all removed.. should i just be able to pull the whole rotor out now??? if I am, it aint buddging.. have I missed another set of bolts?? help~~~~
"..of mice and men.."
Should of only needed to undo 2 bolts, the two big ones that hold the calliper to the *strut, then withdraw the calliper from the rotor.
If the rotor isn't coming free, just tap around the outside edge of it it till it loosens, it'l let go after a while, WD40 will help too.
Last edited by BoNeZ-01; 06-05-2010 at 12:10 AM. Reason: typos
On the 7th day, God created Holden, then on the 8th day, God created Ford, to keep idiots out of Holden's.
Hi, you'll find the rotor is rusted to the sealed wheel bearing housing - you need to bash the living hell out of it if it is.
Soak it in wd 40 overnight then try to hit it off.You are replacing it so just belt it off with a hammer and a piece of wood.
Where do you live.... I need to know so I don't ever drive near there...
Seriously man...how much is your life worth? I can't understand that A: you let the rotor get that bed in the first place and B: that you can't afford to fix it properly so instead risk the live's of everyone else on the road.
If the drivers side is that bad then I can guarantee that the passenger side is nearly as bad (unless you have a seized calliper in which case you better start saving). Please Please Please...get someone who knows what they are doing to give you a hand to do the job properly. Yes, the rotor hat is stuck on the hub, I don't mean to offend you but if you don't know enough about brakes to carry on from here then you don't know enough about them to have started working on them in the first place.
Fact is - you need new rotors, and probably new pads. Machining is not an option by the sounds of it.
If you choose to continue, hit the rotor hat with a hammer, hell even hit the rotor face itself since its obviously stuffed anyway until is slips loose.
Last edited by thewheeldeal com au; 05-05-2010 at 11:17 PM. Reason: spelling
Real cars are steel cars.
^^^^^^^^ I agree.
If I told you I was a compulsive liar, would you believe me?
Donati..Whoa Green
Gonna have to agree with above.
-Democracy must be something more than two wolves and a sheep voting on what to have for dinner.
James Bovard, Civil Libertarian (1994)
-Giving money and power to government is like giving whiskey and car keys to teenage boys.
P.J. O'Rourke, Civil Libertarian
-Government's view of the economy could be summed up in a few short Phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.
Ronald Reagan (1986)
This poor guy admits he is broke but at least hes on here trying to get some help and trying to get his car roadworthy..Not everyone can afford to repair their cars as soon as things wear out etc.How about helping him out instead of bagging him out.And how many people on here pull their brakes apart and dont know exactly what they are doing.Quite a few Id say.Whats he supposed to do,leave it like it was and just drive it until he can afford to pay to get it fixed.I say good on you mate for getting in and having a go.I know exactly what its like to do it tough.
First of all, I did give the guys some advice on his problem..
Secondly, forgive me for not sharing your sympathy for the guy. Just because a person is broke doesn't mean they are exempt from the law. Laws such as those that apply to brake rotor thickness exist for the protection of not only the occupant of the vehicle but other road users as well. Obviously the original rotor is bad enough now that it MUST be changed (if it wasn't urgent then surely the guy would have saved up to fix it properly). For a rotor to urgently need replacing it must be a good ~3mm undersized which in real terms means the car has probably done about ~10,000kms on dangerous undersized rotors prior to getting to this point.
Would you be sitting here forgiving the guy saying, 'oh the poor guy was broke and couldn't afford new brake rotors that's why he crashed into my family and killed them all...but he had a go at it himself at least...' I think not.
"What's he supposed to do?" Listen to the advice he is being given would be a good start. 4 people including yourself told the guy to replace both rotors at once...and he goes and buys one...what's the point in trying to help the guy if it goes in one ear and out the other...
I'm not trying to offend him or anyone else for that matter but people need to value human life a little more.
Hey All.. Dont worry ..all is well. Old rotten rotor successfully extracted.it was very fused from the heat of a severely warped rotor. bolted it back up and went for a good test run and then re-checked and tightened all bolts again. No pulling, no death wobbles,no noises, perfectly stops. (much safer now) I know my plea sounded scary but i was just asking to make sure i had to smack the thing out, i didn't want to be smacking aimlessly..did check the others and all good. i didn't let these rotors get this bad I had just bought this car recently and died on way home from purchase, ripped off!. i had to refit a newer engine 2 weeks ago, and now im just going through each thing that's wrong with it and make the car worthwhile somehow. .but rest assured will get complete front done by end of the month...lol thanks brett! and fully understand your concerns The whealdeal
Donati..Whoa Green
And if you look at the top of this thread, we give him decent advice.
-Democracy must be something more than two wolves and a sheep voting on what to have for dinner.
James Bovard, Civil Libertarian (1994)
-Giving money and power to government is like giving whiskey and car keys to teenage boys.
P.J. O'Rourke, Civil Libertarian
-Government's view of the economy could be summed up in a few short Phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.
Ronald Reagan (1986)
"..of mice and men.."
I'm guessing that's the old one?
Judging by that lip around the inside and outside edge, it was pretty ****ed, and already at it's minimum thickness, if not passed it.
I very much doubt would've had enough, if any, for a machine job.
On the 7th day, God created Holden, then on the 8th day, God created Ford, to keep idiots out of Holden's.
yup ..that's the old sucker..your right about the lip good pick up..i had to compensate for that too but im to scared to talk about brakes on here now..lol
but i had to do what i could for now and its 100% so much better.No pulling, no death wobbles,no noises, perfectly stops
The guy wanted help with his problem,who wants some do gooder preaching to them about laws and shit ,and telling him he shouldnt be touching stuff as he doesnt know what hes doing.And throw in a slack comment about where he lives and how you will avoid driving there.How does this help him?Half the people on here dont know what they are doing,thats why they are on here in the first place,we are all here to learn,are you gonna post in every question where someone doesnt know something,that they shouldnt touch it and should pay for it to be fixed or they might kill a family.What a joke.The guy is not a spastic.Hes obviously confident he could do it, or he wouldnt be attempting it.And he was right.He says they are now perfect.And the other disks are all ok.Its perfectly acceptable to fit one new disk if only the one disk is worn,just as long as the opposite one is in good nick..If they are both worn out you wouldnt fit one new one though.Then you would replace both as a pair...
Last edited by Brett_jjj; 06-05-2010 at 02:30 AM.
My car had new rotors fitted under second hand car warranty and they used a Chinese brand called Argent, they are slotted, have a similar cooling fin pattern to the DBA Kangaroo paw and they have been fine. There is no shudder either. Second hand genuine ones unless fairly new tend to be a bit rusty and may possibly be made overseas anyway as are a large number of genuine parts.
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