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Strange o-rings in the oil filter & sump

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHStrange o-rings in the oil filter & sump

Leading reported evidence

Inspect oil filter and found an o-ring amongst other things

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
Hi guys, I inspected my oil filter and found an o-ring amongst other things.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Frequently discussed work

Check bores tomorrow

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'm checking the bores tomorrow with an endoscope.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Read full discussion summary

Leading evidence: 'Inspect oil filter and found an o-ring amongst other things' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check bores tomorrow' (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 · 0 partial discussions

Compare 3 other evidence results

Replace cam actuators likely didn't;t pull the sump

Performed · outcome unconfirmed

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
The shop that replaced the cam actuators likely didn't;t pull the sump to remove the pieces of the failed actuators that led to the replacement.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Run about 200 miles

Performed · outcome unconfirmed

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 actually ran about 200 miles with a new filter since the above findings and it was totally free of any foreign objects when I cut it up.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Check bores tomorrow

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'm checking the bores tomorrow with an endoscope.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Frequently discussed actions (4)

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

Check bores tomorrow

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'm checking the bores tomorrow with an endoscope.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Inspect oil filter and found an o-ring amongst other things

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
Hi guys, I inspected my oil filter and found an o-ring amongst other things.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Replace cam actuators likely didn't;t pull the sump

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
The shop that replaced the cam actuators likely didn't;t pull the sump to remove the pieces of the failed actuators that led to the replacement.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

Run about 200 miles

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 actually ran about 200 miles with a new filter since the above findings and it was totally free of any foreign objects when I cut it up.
Original post Read captured discussion
Strange o-rings in the oil filter & sump

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: 20261027T154520Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi guys, I inspected my oil filter and found an o-ring amongst other things. I also pulled off the sump plate and found another one. Was wondering where these came from and if this is a sign of something wrong or about to fail. In addition to the o-rings there was what appears to be sump liquid gasket pieces (bigger black pieces in pics above) so I guess no worries there? No signs of metallic flecks in the oil but there were these two metal pieces in the filter which are ferrous. Possibility from the piston skirt? They are silver one side and dark the other. 5mm long. Only two pieces in the filter, and none anywhere else. Thoughts? THere was also strange pink pieces in the filter, non ferrous. I'm checking the bores tomorrow with an endoscope. Any input on any of the above is greatly appreciated. Thanks! JT

POST 2Original post

Can you share some history, in particular engine work, and year of car? Might help some of the resident authorities here share their thoughts.

POST 3 / ORIGINAL POSTEROriginal post

New to me 6 months ago. 996.1, 1998 C2, manual 85k miles IMS AND RMS done 12 months ago New cam adjusters, guides and seals 12 months ago. I actually ran about 200 miles with a new filter since the above findings and it was totally free of any foreign objects when I cut it up. THanks!

POST 4Original post

The shop that replaced the cam actuators likely didn't;t pull the sump to remove the pieces of the failed actuators that led to the replacement. You are now likely finding these parts.

POST 5 / ORIGINAL POSTEROriginal post

Hopefully you are right. I'll keep an eye on the filter on the next service.

POST 6Original post

Those round things look like circles of gasket sealant, not O-rings. Same deal though. The installer didn't put the sealant in the right place - installation error.

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