911uk

Unreadable Engine Number

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Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHUnreadable Engine Number

Leading reported evidence

Check chassis number

Performed · outcome unconfirmed

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 performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
I had checked the chassis number when I bought it, but not the engine number.
Original post Read captured discussion
Unreadable Engine Number

Frequently discussed work

Check chassis and engine numbers match the v5

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
Hopfully it will match the number in your logbook you should always check the chassis and engine numbers match the v5 when buying they car.
Original post Read captured discussion
Unreadable Engine Number

Read full discussion summary

Leading evidence: 'Check chassis number' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check chassis and engine numbers match the v5' (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 · 7 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Check chassis and engine numbers match the v5

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
Hopfully it will match the number in your logbook you should always check the chassis and engine numbers match the v5 when buying they car.
Original post Read captured discussion
Unreadable Engine Number

Clean off the muck etc

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 · Original poster
I have tried to clean off the muck etc.
Original post Read captured discussion
Unreadable Engine Number

Frequently discussed actions (3)

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

Check chassis and engine numbers match the v5

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
Hopfully it will match the number in your logbook you should always check the chassis and engine numbers match the v5 when buying they car.
Original post Read captured discussion
Unreadable Engine Number

Check chassis number

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
I had checked the chassis number when I bought it, but not the engine number.
Original post Read captured discussion
Unreadable Engine Number

Clean off the muck etc

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
I have tried to clean off the muck etc.
Original post Read captured discussion
Unreadable Engine Number

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.

7 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: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hello, Have just SORNed the 996 and am planning on doing a few jobs (brake pipe over the gearbox etc). Whilst I had the car on the lift, I had a quick look at the engine number, as I was intrigued to see which IMS I have (am planning on checking this, when I remove the gearbox). Am struggling to read the engine number. I have tried to clean off the muck etc. But dont want to be too aggressive, in case I remove the numbers themselves. Has anyone got any tips? I did wonder about a very fine abbrasive. Cheers Ben

POST 2Original post

Piece of paper over it and rub it with a pencil. Try photographing it with and without flash. I ended up reading mine from a photo, it was about as bad as yours. MC

POST 3 / ORIGINAL POSTEROriginal post

Brilliant idea - I will have a go at tracing it now...... Thank you!

POST 4Original post

Looks like M96 03 66214066 or similar to me MC

POST 5Original post

Hopfully it will match the number in your logbook you should always check the chassis and engine numbers match the v5 when buying they car.

POST 6 / ORIGINAL POSTEROriginal post

Spot on - thats exactly what it is. Just checked - It matches my V5. I had checked the chassis number when I bought it, but not the engine number. Thank you - now off to decode it.

POST 7Original post

I used a fine piece of sandpaper and a light touch on the end of fingers. You'll not get anywhere near numbers and only take off surface rust, comes up very clear. I never understood the IMS thing. Mines a 2001 996.1 with a confirmed Dual IMS. My own opinion is Single IMS started with the 996.2 only and all 996.1 are Dual. :thumbs:

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