Is there anything wrong in this picture?
- Thread starter [TW]Fox
- Start date
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agw_01 said:
What exactly are glazed disks.
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No idea what your on about tbh, along with the comment on part of the disc being warped. Its either warped or its not.
The way the disk looks is totally dependant on the pad materialm you cant really make generic claims based on what they look like. Especially as your using a term you have simply heard, by god the internet is a crazy place at times.
The way the disk looks is totally dependant on the pad materialm you cant really make generic claims based on what they look like. Especially as your using a term you have simply heard, by god the internet is a crazy place at times.
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Just to add to the comments on your brakes Fox, it looks like its uneven wear on the disc, get them to check the calipers are sliding freely on the guide pins.
Allow me to show you what I mean...
Normal brake disc. I can't say I've ever seen a disc which is very shiny through normal use. They all have the dull finish as above.
And what parts of the disc look like when they got too hot. The GSi's discs looked like this after I made them smoke at the MM.
Normal brake disc. I can't say I've ever seen a disc which is very shiny through normal use. They all have the dull finish as above.
And what parts of the disc look like when they got too hot. The GSi's discs looked like this after I made them smoke at the MM.
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Oracle said:Not sure they make them in 'tea cup saucer' size!?
Surely he must be able to get some off a scooter or similar
Fog
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The 'normal brake' disc is actually a new one. 
As you 'may' be aware brake operate on the basis of friction so they all look like that with slight variances depending on the pad compounds primary work temperture friction coefficient, be it adherant or abrasive, abrasive colder pads will tend to have the machiced look. Really has zero bearin anything, brand new disks could look like that after 100 miles.
I find it odd how you have gone from never using a term before to an expert. Dangerous place this armchair mechanic world.
As you 'may' be aware brake operate on the basis of friction so they all look like that with slight variances depending on the pad compounds primary work temperture friction coefficient, be it adherant or abrasive, abrasive colder pads will tend to have the machiced look. Really has zero bearin anything, brand new disks could look like that after 100 miles.
I find it odd how you have gone from never using a term before to an expert. Dangerous place this armchair mechanic world.
Jonnycoupe said:The 'normal brake' disc is actually a new one.
Was there really any need for the rolleyes? Do you think I'm THAT stupid? I knew it was a new disc. I HAVE changed mine before.
But, I've never seen a semi worn disc before which shows a very shiny area such as that, unless they've become warped/scored/worn.
Where did I say I was an expert? I was just voicing my opinion on the subject. This is a discussion forum afterall.
Ok, so I might have given wrong information (but from my limited experience I thought was correct) but the way Jonny piped up with the rolleyes, was there really any need.
Anyway, I've just been looking through some of the pics on this PC and none of the pics of brakes had discs that were showing very very shiny parts like in Fox's picture.
Anyway, I've just been looking through some of the pics on this PC and none of the pics of brakes had discs that were showing very very shiny parts like in Fox's picture.
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agw_01 said:
Ironically its bad advice thats making forums go down hill, far to many kids commenting on stuff they, self proclaimingly, know very little about about.
Fox is taking it too a dealer to be fixed, thats fine. Comments on completely worn out close discs looking glazed is a bit bizzare. The rolls eyes cos it was clearly a brand new unused disc you were using as some sort of CSI evidence.
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agw_01 said:
Thats because the grinding is occuring there with something other than a brake pad, be it stone or low pad indicator strip riveted to the pad or set in the brake pad compound, touching the disk. Thats the whole initiator of this thread, the grinding and its totally reasonable to expect some sort of visual evidence of that happening.
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I never have understood why rolleyes get people so worked up 
Obviously I've just put it down to some quirkiness of the ocuk forums as nowhere else do you get such an over-reaction from using one 
Obviously I've just put it down to some quirkiness of the ocuk forums as nowhere else do you get such an over-reaction from using one
Ok I'll admint I should have researched 'what I thought I knew' before posting, but from all the cars and all the images I've seen of brake discs, I've never seen a healthy disc resemble anything like that in Fox's picture, with the thin shiny ring.
All the discs I've seen have had the same dull/dusty layer over the whole of the disc. Sure, there were areas which were darker than others, but none of them had the shiny area like the part I pointed out.
Anyway, Jonny, how old are you? 24-25? I'm only 4-5 years younger than you... hardly a kid. Oh, and we all have to start somewhere.
edit... Just read your last post, and I understand now. I'm going to back out of this thread before I make an even bigger fool of myself
All the discs I've seen have had the same dull/dusty layer over the whole of the disc. Sure, there were areas which were darker than others, but none of them had the shiny area like the part I pointed out.
Anyway, Jonny, how old are you? 24-25? I'm only 4-5 years younger than you... hardly a kid. Oh, and we all have to start somewhere.
edit... Just read your last post, and I understand now. I'm going to back out of this thread before I make an even bigger fool of myself