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Another project, Mismatched case halves, yeh or ney?

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YOUR RESEARCHAnother project, Mismatched case halves, yeh or ney?

Leading reported evidence

Replace i assume it

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed · Original poster
I assume it was replaced do to issues with the 4-6 side cylinders.
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Another project, Mismatched case halves, yeh or ney?

Frequently discussed work

Check sealing surfaces

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
I already pulled the alignment dowels I could replace them to check sealing surfaces.
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Another project, Mismatched case halves, yeh or ney?

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Leading evidence: 'Replace i assume it' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check sealing surfaces' (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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Check sealing surfaces

Suggestion or failed attempt

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
I already pulled the alignment dowels I could replace them to check sealing surfaces.
Original post Read captured discussion
Another project, Mismatched case halves, yeh or ney?

Frequently discussed actions (2)

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

Check sealing surfaces

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 already pulled the alignment dowels I could replace them to check sealing surfaces.
Original post Read captured discussion
Another project, Mismatched case halves, yeh or ney?

Replace i assume it

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 assume it was replaced do to issues with the 4-6 side cylinders.
Original post Read captured discussion
Another project, Mismatched case halves, yeh or ney?

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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.

1 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.

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Generation: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a '04 3.6 996 engine to rebuild, long term over the winter project. The engine was a stock rebuilt (not by me) and the chap only got about 50K miles (70K kms) before a IMS failure. The case looks good with just a minor scrape from the OD of the IMS gear. Wiped out the IMS shaft, busted the 1-3 scavenge pump and the tension guides, but overall looks like a just in time shutdown. It had slight weep at the IMS and 4-6 head scavenge pump but the rest "looked" good. Scored cylinders 4-6, but I don't think that was IMS related. In talking to him yesterday he said in the previous rebuild one half of the case was replaced. Being from aircooled roots this is a total no-no, but he said he asked and several peeps and another shop and they told him this was an accepted practice on the 996. I assume it was replaced do to issues with the 4-6 side cylinders. I realize that the 996 has a crank carrier, so the bearing saddles are independent of the case. LN said they have heard of this but can't recommend it. I already pulled the alignment dowels I could replace them to check sealing surfaces. Just wanted to ask the collective's and Jake's view of this practice and if it's acceptable or not? I know my opinion but would like to hear yours and the reasoning. I don't want to put big bucks into a junk case.

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