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what is a "sealed IMS"?

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6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHwhat is a "sealed IMS"?

Leading reported evidence

Install without a visual inspection

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

No one, not even Porsche, can guarantee which bearing is installed without a visual inspection.

Original post Read captured discussion
what is a "sealed IMS"?
Read full discussion summary

Leading evidence: 'Install without a visual inspection' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is '2005 rebuild of a 99 3.4' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Install without a visual inspection' (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.

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1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace already

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

Looking to buy a 996 and the owner says they wanted to replace the IMS when doing the clutch, however, "the mechanic found that the engine was replaced already with seals IMS?"

Original post Read captured discussion
what is a "sealed IMS"?

Replace entire engine

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

Most of the time they just replaced the entire engine.

Original post Read captured discussion
what is a "sealed IMS"?

2005 rebuild of a 99 3.4

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 suspect a cause
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.

Suspected cause

This engine pictured is likely a 2005 rebuild of a 99 3.4.

Original post Read captured discussion
what is a "sealed IMS"?

Replace ims

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

Looking to buy a 996 and the owner says they wanted to replace the IMS when doing the clutch, however, "the mechanic found that the engine was replaced already with seals IMS?"

Original post Read captured discussion
what is a "sealed IMS"?
Frequently discussed actions (5)

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

Install without a visual inspection

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

No one, not even Porsche, can guarantee which bearing is installed without a visual inspection.

Original post Read captured discussion
what is a "sealed IMS"?

Replace already

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

Looking to buy a 996 and the owner says they wanted to replace the IMS when doing the clutch, however, "the mechanic found that the engine was replaced already with seals IMS?"

Original post Read captured discussion
what is a "sealed IMS"?

Replace entire engine

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

Most of the time they just replaced the entire engine.

Original post Read captured discussion
what is a "sealed IMS"?

Replace ims

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

Looking to buy a 996 and the owner says they wanted to replace the IMS when doing the clutch, however, "the mechanic found that the engine was replaced already with seals IMS?"

Original post Read captured discussion
what is a "sealed IMS"?

Replace pop the external seal

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

Next clutch change, pop the external seal on the IMSB.

Original post Read captured discussion
what is a "sealed IMS"?
Reported and suspected causes (1)

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

2005 rebuild of a 99 3.4

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

This engine pictured is likely a 2005 rebuild of a 99 3.4.

Original post Read captured discussion
what is a "sealed IMS"?
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.

  • Rennlist: 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Looking to buy a 996 and the owner says they wanted to replace the IMS when doing the clutch, however, "the mechanic found that the engine was replaced already with seals IMS?" pic of the block: post a picture

POST 2Original post

Maybe he meant that the replacement engine has the third generation large single row IMS bearing that cannot be replaced without spitting the engine cases or boring out the IMS bearing opening?

POST 3Original post

More like landlocked? Boxstered in? Internal? Encapsulated? Trapped?

POST 5Original post

OP - That serial number is only 213 numbers from an M96/01 engine rebuilt in 11/04. Most sources say rebuilds in 2005 have the newer unserviceable bearing. No one, not even Porsche, can guarantee which bearing is installed without a visual inspection. This engine pictured is likely a 2005 rebuild of a 99 3.4. But I’ve never found any reliable info on how to find when a reman was actually built, how many built per year, etc. So, was the IMS bearing nut visually confirmed to be the 22mm nut? If so, then the IMSB is the unserviceable large bearing.

POST 6Original post

Well, if anything, the AT in the engine number means it is a replacement engine. Now Porsche did do a few rebuilds, but not many. Most of the time they just replaced the entire engine. If it is a replacement engine from 2004, it has the larger non-servicable IMSB. The failure rate of those is astronomically small. Proper oil/filter changes at 3-5K intervals and you are good to go. Sealed IMSB means it has the bearing seals on both sides. Not really a bad thing. Next clutch change, pop the external seal on the IMSB. That's it.

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