11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHSeeking expert advice, found RTV silicone in oil filter
Leading reported evidence
Replace design
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
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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 design was changed for the 997 to remove the swirl pots.
Seeking expert advice, found RTV silicone in oil filter
Read full discussion summary
Leading evidence: 'Replace design' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check screen and get it all' (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.
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
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Suggestion
I'm no expert, but I'd drop the sump, check the screen and get it all cleaned out before you have serious problems.
Seeking expert advice, found RTV silicone in oil filter
Repair could have been done recently
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
I am guessing that this is the work of a sloppy mechanic and I am glad that the filter caught it instead of some small oil passage in the engine, but I was just curious if someone can identify where this silicone may have originated in the engine and what repair could have been done recently to produce this.
Seeking expert advice, found RTV silicone in oil filter
Replace 996 parts
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
It is a common upgrade to replace the 996 parts with the 997 parts, especially if you are installing a deeper/better baffled sump pan.
Seeking expert advice, found RTV silicone in oil filter
Replace first time
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
I am a new owner of a 2002 C4S and just did an oil change for the first time under my ownership.
Seeking expert advice, found RTV silicone in oil filter
Repair could have been done recently
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 am guessing that this is the work of a sloppy mechanic and I am glad that the filter caught it instead of some small oil passage in the engine, but I was just curious if someone can identify where this silicone may have originated in the engine and what repair could have been done recently to produce this.
Seeking expert advice, found RTV silicone in oil filter
Use silicone instead of a gasket or maybe
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
Probably won.t find anything on the oil sump pick up tube, I suspect that the tech used silicone instead of a gasket or maybe with the gasket on the oil pump primary housing, now that alone would have me pulling the oil pan to check what else he or she could have over silicone on that engine.
Seeking expert advice, found RTV silicone in oil filter
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.
11 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
My guess is that the mechanic that worked on the motor before used silicone in this spot and put too much (I don't think that silicone is necessary at all, but that is pointless now), which then broke off.
Hello,
I am a new owner of a 2002 C4S and just did an oil change for the first time under my ownership. When I removed an oil filter I found a rectangular piece of RTV silicone (see picture). It is about 1.5 inch x 0.5 inch in size. I am guessing that this is the work of a sloppy mechanic and I am glad that the filter caught it instead of some small oil passage in the engine, but I was just curious if someone can identify where this silicone may have originated in the engine and what repair could have been done recently to produce this.
Probably won.t find anything on the oil sump pick up tube, I suspect that the tech used silicone instead of a gasket or maybe with the gasket on the oil pump primary housing, now that alone would have me pulling the oil pan to check what else he or she could have over silicone on that engine.
Wow, I have never seen anything like that [intact] in an oil filter. It couldn�t have been sucked up and retained its shape, so it must have possibly fell into the filter when the filter was put back or else I cannot imagine what oil passages would have allowed that to pass and from where it could have originated.
Thanks everyone for your advice. I dropped the sump and here is what I see. Looks pretty clean to me. A few small specs of something on the oil pickup, but nothing major. I am thinking of just replacing the o ring under the oil pickup and putting it back together. By any chance anyone can explain to me what these two round black pieces are and how they work? They attach at the top and bottom of the case and are there any o-rings under them that may be worth changing since I am here already?
Those black tubes are the oil return swirl pots. They return the oil back to the sump. They are supposed to help make sure the oil is not aerated. There are many threads about if they actually do their intended purpose (other than returning the oil). The design was changed for the 997 to remove the swirl pots. It is a common upgrade to replace the 996 parts with the 997 parts, especially if you are installing a deeper/better baffled sump pan.
808 Bill: No, it is definitely grey in color. I think I figured out where it may be from. Looking at it closer, the outside has a perfect edge all around while the inside is wavy. That implies that this silicone was used on a rectangular orifice and too much silicone was added and this piece squeezed out into the passageway and then broke off at some point in the future. Therefore it hardened with perfect outside edge. I was looking at a bunch of pictures on the internet as I try to learn more about this motor and I think that I figured it out. See the port in the red oval below. I believe that this is part of the oil flow from the oil pump and visually looks approximately the right shape and size. My guess is that the mechanic that worked on the motor before used silicone in this spot and put too much (I don't think that silicone is necessary at all, but that is pointless now), which then broke off. My understanding is that the oil flows to the oil filter from this passage, so hopefully the silicone didn't get any further. I am open to other suggestions and potential reasons of why this water manifold was removed in the first place.
Kris Murphy. Thanks a lot of your reply. Are there any moving parts in there? I found that there is an o-ring for each oil separator on the end of the thing tube. Any idea why it needs an o-ring, since any small leakage would just go right into the pan.
An internal oil leak isn't an "oil leak" per se' (like an external leak that makes a mess, and you lose oil). Instead, it's a "pressure leak" where the problem is that the oil isn't going where it's supposed to go...
