9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH99 Boxster Metal in Combustion Chamber - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Fill with oil
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 have a 99 Boxster that I quit driving after it was accidentally over filled with oil.
99 Boxster Metal in Combustion Chamber - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Fill with oil' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'cats' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Fill with oil' (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 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.
99 Boxster Metal in Combustion Chamber - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace crank shaft sensor
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.
99 Boxster Metal in Combustion Chamber - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace oil
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
The oil was changed, spark plugs and filters changed.
99 Boxster Metal in Combustion Chamber - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Run but drove roughly
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.
99 Boxster Metal in Combustion Chamber - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 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: 20261026T083035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have a 99 Boxster that I quit driving after it was accidentally over filled with oil. The oil was changed, spark plugs and filters changed. No metal was found. Car ran but drove roughly. Previous to this the O2 sensors were bad. Crank shaft sensor was changed. Battery was replaced. I hired a mechanic to look the car over and replace the sensors and probably the cats. He opened the engine compartment, using a telescoping magnet he started extracting bits of broken metal pieces from inside the intake of the combustion chamber.
Can anyone tell me what this may be?
He's wanting to remove the engine and I wonder if that's necessary??
I've done research on IMS bearing problem. Is this related?
If you have ferrous metal inside your intake, it is serious. While the block and heads are alloy, the valves and other internal components are ferrous. You might be able to use a bore scope inserted into the intake to learn more. I seriously doubt this is IMS related, but you will not know until the engine is out and apart.
As an addition to what JFP says, I seem to recall a few years ago Jake Raby was seeing a number of dropped valve seats which caused all sorts of mayhem to the combustion chamber, although I don't remember if the seats actually broke apart.
Of course, the oil overfill may or may not have caused damage depending upon the additional amount of oil dumped into the sump.
As well as a boroscope and a compression test to isolate the offending cylinder(s), a picture of the offending steel segments may give a clue.
Is the mechanic's name Criss Angel? Is he a Porsche mechanic? Pretty amazing to just start picking junk out like that. My BS meter would be going off on this one.
How well do you know the mechanic? Does the mechanic really know Boxsters/Porsches specifically?
I would stick the camera down the intake as far as you can. And also pull all six plugs and stick the camera in each of the cylinders. You can turn it over by hand and look for the damage. You can also pull the sump plate and take a look at the filter and oil while your at it. This should answer most of the questions.
If the engine is toast, for whatever reason, you don't need to pull the engine until you decide on what you are going to do to fix it. And where the cash is coming from to pay for it.
If the mechanic pulls the engine, and you need time to find parts, engine, etc. you might be on the hook for storage fees also.
Any chance of a picture of the debris that was pulled out of the intake?
Best of luck to you and the Box.
Just a tip on asking questions on old threads. If you click on the posters user name you can see their public profile which includes the date of their last activity on the forum. The original poster made 1 post 2 1/2 years ago and has not been active since... so don't hold your breath for an answer.
This is a source reference. Confirm exact model applicability in the original material.
