15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRMS
Reported or suspected cause
manufacture of the liners
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
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 report identifying 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.
Reported cause
The main problem is the manufacture of the liners which crack and this results in major engine failure.
Leading evidence: 'manufacture of the liners' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'manufacture of the liners' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace engine' (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 report identifying 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.
Reported cause
The RMS issue is the seal itself and the design of the engine in that Porsche are on to about the 5th modification and there is now a new tool released to fit the seal about another 5mm further in.
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.
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Suggestion
Also Hog, if you could tell us, weather there could be a permanant fix to the problems possible short of replacing the engine?
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've owned it from new and never tracked it or abused it.I've had the RMS replaced twice so far and for reasons best known as 'esp' I thought as it's due a 3 year service/MOT next month I'd have look under the back and see if there was any evidence of oil......And there it was
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
So go figure if a manufacturer will admit there is a problem when this is the engine that they use across their entire range of sports cars.
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Suggestion · Original poster
I've owned it from new and never tracked it or abused it.I've had the RMS replaced twice so far and for reasons best known as 'esp' I thought as it's due a 3 year service/MOT next month I'd have look under the back and see if there was any evidence of oil......And there it was
Use term cause sundeep will ban me :wink: )brought in
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.
Suggestion
In some ways the 996 is akin to the 964, an unwanted offspring, won't use the term cause Sundeep will ban me :wink: )brought in to shore up a gap until a better model is manufactured a la 993 and now the 997
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.
Reported cause
The RMS issue is the seal itself and the design of the engine in that Porsche are on to about the 5th modification and there is now a new tool released to fit the seal about another 5mm further in.
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.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
My car is a 996 C2 and nearly three years old. I've owned it from new and never tracked it or abused it.I've had the RMS replaced twice so far and for reasons best known as 'esp' I thought as it's due a 3 year service/MOT next month I'd have look under the back and see if there was any evidence of oil......And there it was
I'm covered under the warranty so Porsche will do the biz I guess, but I've only covered 5000 miles in the last year and should I expect this every bloody year?There is obviously a problem with these seals based on the number of threads on various sites etc.So what do I do?Do I chuck my toys out of the pram or just accept that this is part of the 'ownership' of a modern 996?Will this issue also have an effect on the re-sale value
Cheers
Migration info. Legacy thread was 54938
It already is an issue that affects the value of the car. Unfortunately to many people accept this as part of 996 ownership because they have a warranty and don't care that it is poor quality engineering.
In some ways the 996 is akin to the 964, an unwanted offspring, won't use the term cause Sundeep will ban me :wink: )brought in to shore up a gap until a better model is manufactured a la 993 and now the 997
Migration info. Legacy thread was 54948
I wouldn't accept it. If you bought the car from new and have a relationship with the dealer have a chat with the manager at the dealer. Be nice and ask what he can do for you. They might offer to trade you to another car for no cost! Well probably not, but you never know your luck. :wink:
Migration info. Legacy thread was 55059
From my knowledge of RMS technology [not Porsche I hasten to add], they usually start weeping oil due to an increase or rise in crankcase pressure, as the piston rings 'bed-in' and the combustion pressures are allowed a little more past the piston rings and not a mechanical or construction failure of the seal itself - well certainly not at the mileage that guys on this forum are experiencing.
Possibly the indies are working on or have figured a fix by improving the crankcase eduction design. i.e. making the crankcase breather or ventilation better. A lot of engines have suffered similar problems as the manufacturers strive to make old designs comply with ever tighter emission regs - Euro 1V & now Euro V.
Migration info. Legacy thread was 55645
Hog you sound like you know your stuff, what do you do, your not a secret spy for Porsche are you :wink:
Daz
AKA
Bond
Migration info. Legacy thread was 55649
The RMS issue is the seal itself and the design of the engine in that Porsche are on to about the 5th modification and there is now a new tool released to fit the seal about another 5mm further in. The main problem is the manufacture of the liners which crack and this results in major engine failure.
Of course this is all conjecture because there is nothing wrong with the M96 engine which just happens to be used in the Boxster/996/997. So go figure if a manufacturer will admit there is a problem when this is the engine that they use across their entire range of sports cars.
Migration info. Legacy thread was 55660
indeed, tracking a car seems to have no bearing on the position..... as there are still enough cars out there without the problem...
but compared to other manufacturers we seem to be still doing well for overall reliability, at least it's not like TVR where they (not usre if they still) make you sign an agreement when buying new that you accept the car is hand made and thus can break down, etc :?
although at this point some wise words from Mark Pearce is needed who knows a bit about RMS !
Migration info. Legacy thread was 55663
Talking of Mr Pearce, where is he? Not seen him around for a few days - hope he is well and PAG have not visited him or put a gagging order on him because of the warranty words on his web site.
Migration info. Legacy thread was 55664
If they're bringing out a tool to push the rms in to the c/case a further 5mm then that has shades of accelerated crankshaft wear area and they want to push the seal in to ride on an unworn area of the crank. A popular fix for other engine manufacturers is to fit a wear ring onto the crank end and install a new seal with slightly higher lip tension and/or different material. Although it has been known for oil to weep between the crank and the wear ring.
I know about the cracked liners and the leaks from the intermediate shaft & enjoy reading the engine rebuild articles in 911 & Porker Wurld.
Daz, do you think maybe I should send my c.v. to Dr. Ing h.c. F. Porsche AG??? Sounds like they need some help in the engineering department!
Day job: Engineering Pimp & part time pig farmer.
Migration info. Legacy thread was 55737
Also Hog, if you could tell us, weather there could be a permanant fix to the problems possible short of replacing the engine?
Migration info. Legacy thread was 55746
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