fullymatted.
Back to search
PistonHeads

Removing GT4 ceramic disc stuck on hub - Page 1 - Boxster/Cayman - PistonHeads UK

Add to repair workspace
Open repair workspace
Original source
6 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHRemoving GT4 ceramic disc stuck on hub - Page 1 - Boxster/Cayman - PistonHeads UK

Leading reported evidence

Replace pccbs

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

In the process of replacing PCCBs on my GT4, first time working on it, so learning as I go!

Original post Read captured discussion
Removing GT4 ceramic disc stuck on hub - Page 1 - Boxster/Cayman - PistonHeads UK
Read full discussion summary

Leading evidence: 'Replace pccbs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace pccbs' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 6 captured posts examined · 1 partial discussions

Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace pccbs

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

In the process of replacing PCCBs on my GT4, first time working on it, so learning as I go!

Original post Read captured discussion
Removing GT4 ceramic disc stuck on hub - Page 1 - Boxster/Cayman - PistonHeads UK
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • PistonHeads: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

In the process of replacing PCCBs on my GT4, first time working on it, so learning as I go! Got the front calliper off and the 2 screws locating the disc on the hub are removed. Was hoping then to simply pull the disc off….but no, it’s stuck firm I’m guessing the disc centre has corroded onto the hub?? Or have I missed something?

POST 2Original post

If the disc were iron I'd put a wheel bolt back on and tap the disc with a rubber or copper mallet. You may be able to do the same with your PCCBs but be warned you may damage the PCCB disc if you do.

POST 3Original post

I'm afraid that I can't answer your question, but what are you replacing them with ? Edited by ChrisW. on Saturday 8th February 15:43

POST 4 / ORIGINAL POSTEROriginal post

Thanks, yes, same approach as iron but but a lot more cautious! Wooden block over the disc and a firmer tap than I was doing earlier - moved very easily then

POST 5 / ORIGINAL POSTEROriginal post

ChrisW. said: I'm afraid that I can't answer your question, but what are you replacing them with ? Edited by ChrisW. on Saturday 8th February 15:43 Girodisc iron replacements and RS29 pads

POST 6Original post

On iron discs there's 2x tapped holes on the disc bell which line up with a flat section of the hub. You thread 2x bolts into these if it's stuck on to remove the disc without any hammering, Do ceramics not have these? Bit of an oversight if not tbh. If it's rears make sure the handbrake is off Cheers, Dunc.

This is a source reference. Confirm exact model applicability in the original material.