I just ahd a guy from Atlantic Brithish that told me my rotors could not be turned. Was this just the salesman in him. They are not the orginals.
Thanks,
Eric
Thanks,
Eric
Turning Rotors
- Thread starter mastercamper
- Start date
I guess my point was how did he come to this conclusion? Did you show him a picture of them or is he saying ALL rover rotors cannot be turned? I'd get the opinion of your machine shop, ultimately they would be the ones doing it anyway
unless you have a lathe and the know how
unless you have a lathe and the know how
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ptschram
Well-known member
They can be turned, but is it really economical to do so when rotors are so cheap?
I've been told that once they wear enough that they need to be turned, they will wear faster as they are only heat-treated so deep (sounds like a question for me to pose to my wife-are rotors heat treated at all???) and we've gone through that with wear and moreso with turning. Also, such parts are now made so thin in interests of saving $ and weight that there isn't much to start with.
I've been told that once they wear enough that they need to be turned, they will wear faster as they are only heat-treated so deep (sounds like a question for me to pose to my wife-are rotors heat treated at all???) and we've gone through that with wear and moreso with turning. Also, such parts are now made so thin in interests of saving $ and weight that there isn't much to start with.
Turning rotors is a complete waste of time. If they are warped replaced them - if they are worn with a lip - replace them.
Turning rotors removes the metal that keeps them from warping in the first place - heat is the enemy and mass is the only way to thermally combat that. So why reduce the mass? They will warp quicker and reduce your overall braking performance by making them thinner -heat up faster.
Rotors are cheap. I go for new rotors on every second set of pads - front or rear.
Turning rotors removes the metal that keeps them from warping in the first place - heat is the enemy and mass is the only way to thermally combat that. So why reduce the mass? They will warp quicker and reduce your overall braking performance by making them thinner -heat up faster.
Rotors are cheap. I go for new rotors on every second set of pads - front or rear.
In all honesty, I have heard both ways from both sides, turn or not to turn. I'm not ready to do brakes, but I am curious as to the real reasoning behind not turning them.
I've never had warped rotors on anything, I've always used a torque wrench to tighten the lugs. On the girlfriends car I've de-warped rotors by loosing all the lugs, and re- torquing them. There must be a method to my madness.
This.NikeCheck246 said:
After about the 4th time of taking rotors to a shop to be turned and being told "too thin" I've just stopped. I just pay the extra $100 for a set of rotors and off I go.ptschram said:
I don't know what his reasoning was I told him I had a vibe when braking at 50 mph and also that I wasn't real happy with the pads he blurted out it wasn't the pads it was the rotors and I said I was going to have them turned he said they couldn't be turned. The rotors are a little over a year old and so are the pads.
wheelen disco said:
Yes this is a factor. Have a BMW customer who kept coming back with warranty work for warped rotors on a BMW. I first figured it was his driving style since he told me his house was at the bottom of a 3 mile steep hill with a small water crossing at the bottom.
Turns out after 2 warranty labor installs I noticed his lug bolts were really tight. Every 2 months he rotates his tires at a truck tire shop in the woods. The were over tightening his wheels. Been at least 2 years since his last rotors were installed.
There isn't a huge amount of material to lose between new and wear limit in the Discovery 2, I couldn't find the Discovery 1 data quickly.
Peter
Peter
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you cant turn them. you will be below specs. you can sometimes get away with tossing new pads in and running the old rotors. BUT i have seen several that the pads outlasted the rotors and broke them...
I looked at my rusty, pitted rotors. Then I looked at my wallet. Then my lathe.
I have four hunks of unvented cast iron hanging off my axles. I figured it can't hurt. It's worked for 18 months now.
I have four hunks of unvented cast iron hanging off my axles. I figured it can't hurt. It's worked for 18 months now.
stu454 said:
Relatively cheap over here in the UK, as you'd expect.
$US 90.00 approx for two new front discs and branded pads, usually Mintex, plus carriage/shipping.
Hardly anyone bothers turning discs over here, it's not worth the hassle, even if you have lathe, which we do.
Peter