Author Topic: Brake disk surprise  (Read 1461 times)

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Offline Dave2103

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Brake disk surprise
« on: May 11, 2019, 02:19:50 pm »
Hi all, I've been getting a bit of brake wobble at high speed braking & very low speed.
So I thought it's either the pads or disk warp, so I decided to change pads first & if that didn't resolve the issue I'd change the disks too.
As I took the wheel off I saw instantly what I'd guess was the problem! Have you noticed?
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Offline ZookNc

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Re: Brake disk surprise
« Reply #1 on: September 03, 2019, 09:17:23 am »
Hi Dave,

Mazda 6 OEM disks all seem to have a warping issue which leads to vibration under braking. I replaced mine with OEM style Brembos and I haven't had an issue since. Changing the pads is a good idea as well if you're changing the disks.

Concerning the broken wheel stud, although disconcerting, I don't think it would have anything to do with the wobble if the other lug nuts were properly tightened.

Hope this helps!

Cheers


Offline mareng73

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Re: Brake disk surprise
« Reply #2 on: June 05, 2020, 04:09:38 pm »
That doesn't look like a sheared wheel stud as my Mazda 6 has 5 studs, those in the image look equaly spaced. Plus non of the studs have the countersunk hole.
What you are  possibly seeing is the holding screw to keep the disc on or a jacking screw hole, to ease the disc off.  But the one at the 11 o' clock  position looks like the jacking screw hole of which there should be two.
Whats the other side look like?
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Offline DaveMc89

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Re: Brake disk surprise
« Reply #3 on: July 14, 2020, 05:47:23 pm »
Not sure what you’re seeing as the issue cause? It won’t be the missing countersunk screw as they literally just hold the disc in place whilst the wheels off.

I do recall however changing the disc on my last 6 that one was a pig to get off as the centre was warped. Had to hammer and rotate. Repeat till loose!