911uk

997 C4S Bore Score

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH997 C4S Bore Score

Leading reported evidence

Use local engineering firm, has done

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
He uses a local engineering firm, has done for about 10 years and trusts them.
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997 C4S Bore Score

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Leading evidence: 'Use local engineering firm, has done' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use local engineering firm, has done' (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.

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Use steel liners

Suggestion or failed attempt

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
Daniel James is an Essex based German car specialist and he does rebuilds using steel liners.
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997 C4S Bore Score

Frequently discussed actions (2)

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Use local engineering firm, has done

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
He uses a local engineering firm, has done for about 10 years and trusts them.
Original post Read captured discussion
997 C4S Bore Score

Use steel liners

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
Daniel James is an Essex based German car specialist and he does rebuilds using steel liners.
Original post Read captured discussion
997 C4S Bore Score

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.

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

911uk: 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: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi everyone Much gratitude for all the wisdom displayed on these pages. Sadly, I fear I have the dreaded bore-score on my 997 C4S. Any particular recommendations other than Hartech? Thanks!

POST 2 / ORIGINAL POSTEROriginal post

Oh… and forgot to mention (and why this is on the 996 thread): on my 2003 996 Carrera as well…

POST 3Original post

There are a few companies that do steel liners, two are below. https://cmesuk.co.uk/ Daniel James Performance Cars | Expert Car Care – Book Today Daniel James Performance Cars offers expert servicing, diagnostics, and tuning for high-performance and prestige vehicles in Rawreth. Trust our experienced team for exceptional auto care. www.danieljamesperformancecars.uk Daniel James is an Essex based German car specialist and he does rebuilds using steel liners. He uses a local engineering firm, has done for about 10 years and trusts them. Good luck

POST 4Original post

MLR in Stoke, if it's not Hartech and you send it to someone else it might end up at MLR anyway, they do work for other people including some well known names. I think you'll wait a while for an engine rebuild, mine is taking forever, but I've yet to hear of any engine they've built failing again.

POST 5Original post

Hi I know you came here for rebuild suggestions, but I have to commiserate with you. What a nightmare. All cars have their issues, but this particular one (borescore) is just so harsh. And on 2 cars. Are they Tips? Berni

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