Condition of PCCB

[fredt]

What would you say about this disc? Is it possible to get a accurate idea of it's condition fron these pictures only?

Thanks!

[fredt]

Not sure what term to use, but I think flaking is the best to describe the small lighter grey patches.

Makes no noise, seems to brake fine. Never used or seen ceramics before so not sure what I'm looking at. Had OPC inspecting the car (mistake) and of course they said because of the mark at the edge of the edge of the disc the official line would be to replace, but it was implied that functionality and/or reliability in the real world was not necessarily affected.

[fredt]

Bin ASAP or can you run them further?

Does PCCB's degrade like conventional steels, or is catastrophic failure a risk?

[fredt]

Scrap hey?

Pic was taken by the OPC, to be fair they said it should be changed because of the 'chip' on the edge, and when I questioned the condition of the disc it was implied that the 'chip'(doesn't look like a chip to me but thats how they described it) was the only issue, not that the disc was actually scrap.
(no mention of the disc on the opposite side that looks identical apart from the 'chip'). And further use was my risk, but no real reason to think it would get worse. Only when i saw it myself did i start to wonder.

Can only blame myself for going OPC route, but if it is as clear cut as you guys make out (is it really..?) then surely this is a straightforward issue that should have been brought to my attention and under no uncertain terms? Specially given the costs involved.

To be clear, this was a private sale OPC only inspected the car.

[fredt]

ClarkPB said:

Put it this way, if my PCCB's started to look like that I think I'd cry...

It's only a brake disc dude, no need to get upset!

Was looking for a less emotional, more factual view on how long a disc in this condition might last?
Slippy what did you disc look like when you got the car?
Has anyone else with experience of running these discs this far any input?
What is the verdict in SICOM? Anyone with experience?

Thanks

[fredt]

m33ufo said:

I had a couple of chips on the PCCB rotor of a Boxster Spyder. At the time Porsche had guidelines which stated more than a few chips over a certain diameter (sorry, can't recall the exact size), would mean that the rotor required replacement. Obviously they weren't carrying out a warranty inspection for you (I assume the car is beyond 9 years?), but they should be well aware of the guidelines.

No they DID say according to guidelines it (no mention of the other side) should be changed, but I know what car dealer guidelines can be like and often the recommend changing things way before you actually need to, so I asked the technician what they were actually who implied they will be fine, when he should have just told me they were scrap not to be used!

Correct, it wasn't a warranty inspection, they just checked the car over for me (111 test). (Interestingly the 111 test doesn't cover checking engine numbers etc! This I also only found out afterwards).

[fredt]

m33ufo said:

They're not in great shape but I have seen lots worse. I'd use them for the moment and keep an eye on them.

Thanks! That's what I'll do and weigh up my options. Would like to stay on ceramics but I'm not sure if the limited (for me) upside warrants it.

Slippydiff said:

http://workshop-manuals.com/porsche/911_turbo_cabr...

And click on "next page" for further information.

So my discs basically look like the middle picture, abused but not yet completely fubard.

Gonna measure them up for my own amusement, not like OPC will give a st anyway, as they clearly didn't do anything wrong..

[fredt]

Yeah I'm just gonna run them, keep an eye, and not worry about it.

Are there any reviews on SICOM? Very reasonable price if you get what they promise, but I can't find anything from anyone who has used them.