ive got renewed interest in my zed as i dont have to sell it im going to have a cheap run about for work as my travelling has increased due to job change, and the zed to be kept for the sunshine and weekends so im really going to throw some money at it. Ive just had the mot and they said my pads were getting low all round so ive ordered some new pads and grooved discs all round. But i was wondering about the pad wear sensors do they need replacing aswell??
brake question
- Thread starter tedster
- Start date
I think as long as you haven't worn the indicator through then you can re-use it 
http://www.z4-forum.com/forum/viewtopic.php?f=3&t=4075
What discs did you get?
http://www.z4-forum.com/forum/viewtopic.php?f=3&t=4075
What discs did you get?
my friend has got these discs on his immpreza qaulity seems very good hes had them for a year now and they still look fine so i thought id give them a go i got mine in silver finish with 20 grooves and mintex pads delivered for £249
here is the ebay number 360004842434
here is the ebay number 360004842434
chariszzzz
Member
OHH shiny!
Certainly look nice and shiny...
I'd worry about fitting a totally unknown brand and quality of rotor on a 155mph car.. Perhaps That's just me??
I'd worry about fitting a totally unknown brand and quality of rotor on a 155mph car.. Perhaps That's just me??
When you buy new rotors, even great quality ones, do you normally have them turned before you put them on? I have never replaced rotors with anything other than the replacement ones you can get over the counter at an auto parts store. I have always taken them to a brake shop and had them turned. :?
I am thinking of getting an after market set that are drilled or slotted or both and was wondering if anyone who has gotten a good name brand set has had to have them turned or are they just fine the way they came?
Did not want to hijack the thread here but as the talk was about brakes I thought this may be a good place to ask.
I am thinking of getting an after market set that are drilled or slotted or both and was wondering if anyone who has gotten a good name brand set has had to have them turned or are they just fine the way they came?
Did not want to hijack the thread here but as the talk was about brakes I thought this may be a good place to ask.
Wazz, what do you mean by "turned"?
I presume you mean that you've had small grooves machined into the surface to increase the braking surface area?
No need to have these machined, grooving will naturally occur on the disc face.
On a not unrelated note, I knew a lot of people that used to have the grooves machined off their brake disks to give a flat face in the incorrect belief that it would improve braking. :thumbsdown:
I presume you mean that you've had small grooves machined into the surface to increase the braking surface area?
No need to have these machined, grooving will naturally occur on the disc face.
On a not unrelated note, I knew a lot of people that used to have the grooves machined off their brake disks to give a flat face in the incorrect belief that it would improve braking. :thumbsdown:
Philosophico said:
Thanks for the response. No turned, maybe that is just a local term, is when you have the surface milled to make sure it is perfectly flat. In the process of manufacturing rotors, sometimes the surface has slight waves in them which can cause problems. The turning process as we call it mills off a minuscule amount of rotor surface to take the peeks and valleys out. I hope I have described that correctly. Most folks around here do that even when they just put new pads on to make a clean service on the rotors for the new pads.
I don’t know what you are saying about milling to improve breaking, but I can tell you one thing from years of experience, if your rotors resemble long play albums with grooves because of bad or warn pads, you better have the rotors resurfaced, (turned) or your new pads will be shot and need replacing very soon as the grooves will etch themselves into the new pads within just a few miles. :thumbsdown:
OK, I see what you're saying now
Havent experienced the need to machine the surface of new disks to make them flat.
If the manufacturer cant machine them right, dont buy them from there!
Grooves on rotors is no bad thing as long as they are within tolerance - a ripple is quite acceptable, even desirable because it increases the pad/disk surface area and tends to produce more consistent braking (the details why are very boring but true...20 years of designing/making braking systems for cars, bikes, trucks and F1 is all flooding back to me
).
Havent experienced the need to machine the surface of new disks to make them flat.
If the manufacturer cant machine them right, dont buy them from there!
Grooves on rotors is no bad thing as long as they are within tolerance - a ripple is quite acceptable, even desirable because it increases the pad/disk surface area and tends to produce more consistent braking (the details why are very boring but true...20 years of designing/making braking systems for cars, bikes, trucks and F1 is all flooding back to me
).Yeah if they are new rotors you shouldn't have to do anything other than inspect them before you put them on. They should have no grooves. Just don't forget to "bed" the pads with with the rotors. I just replaced my front rotors and pads with the centric rotors off http://www.zeckhausen.com/Centric_Advantage.htm and the Axis deluxe pads. Oddly enough...my front wear sensor was not connected at all. That kinda made me mad as BMW looked at the car and didn't say nothing about it. I suppose the sensor could of came off since then but I'm semi doubtful.
When you say grooved disks do you mean slotted?
When you say grooved disks do you mean slotted?