Dumbest thing I ever heard (I dont agree).

 

It is absolutely true. The pad material bakes itself into the rotor in spots and it will feel like a warped rotor. I've seen it many times. I've also seen incorrectly torqued lug nuts cause a warped rotor, which in that case is actually a warped rotor due to stress in the hub and rotor.

The steel that's used in the rotor itself also has a lot to do with how much pad material gets baked in. I'm using Meyle rotors and OEM pads and haven't had any "warp" symptoms ever since.

 

I'm posting this for all Ody users so a simple search will bring up this article/thread!

Yes, you have nicely crossposted everywhere.

While brake pad material transfer is one cause for uneven rotors, it's certainly not the only one. However it happens, lateral runout is lateral runout - who cares how it gets there, it makes the brakes judder and you need to either turn or replace the rotors to fix it. If they want to prove the pad material transfer argument, they can do it with a dial indicator looking at lateral runout on both sides of the rotor - should be pretty obvious if the rotor is warped or has local thin spots.

 

In my experience, if rotor is wrapped, you can do many magical things to it, such as "bedding", but it still will be wrapped. You can even try to dance and sing around it, result will be the same.

The only thing that really helps is pictured below. I used to own similar device. There is no magical capabilities in it, just pure metal cutting physics. Worked each and every time.

 

Have something to add from last night's brake job on my 2005 Altima.

Sanded the front rotors with 100-grit garnet paper. No measureable runout or thickness variation. The pedal was actually pulsing with each somewhat firm stop even though I could not measure any dimensional problems on the front rotors prior to sanding or after. I find this amazing.

I took off so much purplish-black dust with just the sanding alone that I ended up with a small pile of it from each front rotor. This is pad material that adhered to the rotors. Previous owner had installed the worst-ever el-cheapo organic pads. Currently, I can't name an OEM that uses a pure organic pad any more. Given the makeup of materials that OEM's use these days, all (if not nearly all) OEM pads currently meet the definition of pads with ceramic construction.

Pins were sliding freely, applied MoS2 grease where called for in the service manual with new clips & isolators & front pads (Nissan OEM ceramic). Ran out to bed the brakes at midnight. For some reason, I could still feel some sort of juddering and steering wheel shake on light braking application prior to clamping down to stop quickly during the bedding process, and it did feel like the front left corner.

Stopped the car, got out a shop light. Right front rotor looked perfect. Left front had some sort of manufacturing defect. Imagine this: remove rotor, lay it down on table, and there were two solid lines of what looked like carbon inclusions running radially from the center to the extreme outer edge of the outside rotor face.

Although the right rotor was fine, the left front....no amount of sanding will fix that. Ever. Damnit.

Per John Clark's erudite recommendation, it's time to get a set of Meyle front rotors. It would not surprise me if Meyle makes rotors for OEM. They are a big company with a wide product line and what appears to be exceptional manufacturing quality controls.

OF

 

UPDATE: Meyle rotors are well-machined OEM-quality replacements (like they say in their ad copy). Well-balanced, too. The ones I bought for my Altima had obvious machined shallow divots in the outer rim from the balancing process. Actually lessened the very, very slight judder I used to feel at 75mph in the steering wheel to a stable, steering wheel with no vibration. So nice to cruise at freeway speed without any steering wheel vibration.

The left front rotor actually had a casting defect on the outboard disc face that was swept by the brake pads, and the pad would grab this whenever this part of the rotor swept that pad even with the lightest of brake applications.

Nissan uses ceramic-metallic hybrid material in their OEM pads. Honda, IIRC, is a pure ceramic composition.

If I ever do a rotor replacement on any of our Hondas, it will be Meyle. Thank you, John Clark!

OF

 

Do you have the link of the online store?

 

Sir, I had to go check Amazon and eBay, as Meyle does not sell rotors directly. However, judging by wide availability by different makes, models and years, they definitely have a huge worldwide manufacturing and distribution presence.

Purchased a pair for my Nissan on eBay for less than $70 for the pair! About half a month of operation on these rotors, and I'm pleased with the balance as the steering wheel is definitely much steadier. OEM rotors for most mainstream Japanese makes are usually satisfactory; I just had a bad rotor with a casting defect on my Nissan.

OEM Honda rotors on our Odysseys still going strong with almost 201,000 miles for our 2002 EX, and over 190,000 miles for our 2003 EX. Meyle is an OEM-quality part.

Here is an eBay ad for the Meyle p/n 31368 front rotors for your 2005-2010 Ody: LINK.

Avoid any ad that says "Meyle--WD EXPRESS", as they ad title claims a Meyle product, but the mfgr is listed as "WD EXPRESS" of China. I don't know anything about that product.

OF

 

I see over and over that this old myth of warped rotors is still being propagated, I'm posting this for all Ody users so a simple search will bring up this article/thread. And hopefully finally put this misunderstanding to bed once and for all!

Well, I understand your point but I think to say that warped rotors are a myth is little bit of a stretch.

I can tell you from all my years of owning and working on Honda that Hondas are highly sensitive to incorrectly torqued front wheel bolts. almost every single time when I've had my car is in for service - even to the dealers - and I get them back I have brake vibration. However when I remove the front wheels myself and properly torque them I have never had a problem.

Also, although not recently, I've experienced warping by running a hot rotor through a carwash or spraying it with water.

So, warped rotors are not a myth. ?