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What's this oil leak - RMS/IMS? 997.1, please help identify - Page 1 - 911/Carrera GT - PistonHeads UK

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7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

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YOUR RESEARCHWhat's this oil leak - RMS/IMS? 997.1, please help identify - Page 1 - 911/Carrera GT - PistonHeads UK

Leading reported evidence

Replace washer

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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
Washer costs pennies but about hours labour or so to lock engine before removing the tensioner and changing washer.
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What's this oil leak - RMS/IMS? 997.1, please help identify - Page 1 - 911/Carrera GT - PistonHeads UK

Suggestion
The washer is approx £2 from Opc , oil needs to be drained and crankshaft locked in a safe position to allow removal of plug to replace washer.
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What's this oil leak - RMS/IMS? 997.1, please help identify - Page 1 - 911/Carrera GT - PistonHeads UK

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

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1 matching discussions · 7 captured posts examined · 1 partial discussions

Frequently discussed actions (1)

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

Replace washer

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
Washer costs pennies but about hours labour or so to lock engine before removing the tensioner and changing washer.
Original post Read captured discussion
What's this oil leak - RMS/IMS? 997.1, please help identify - Page 1 - 911/Carrera GT - PistonHeads UK

Suggestion
The washer is approx £2 from Opc , oil needs to be drained and crankshaft locked in a safe position to allow removal of plug to replace washer.
Original post Read captured discussion
What's this oil leak - RMS/IMS? 997.1, please help identify - Page 1 - 911/Carrera GT - PistonHeads UK

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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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

PistonHeads: 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: 20261026T065735Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hi The big bolt is the timing chain tensioner. The crush washer commonly corrodes and leaks. Washer costs pennies but about hours labour or so to lock engine before removing the tensioner and changing washer. We had it done at Porsche during a service. From your pic it seems to be coming I from there. A bit worrying that it wasn't rectified at the recent service. Was car serviced at porsche dealer or specialist?

POST 2Original post

Looks like leak is coming from the hexagon plug in picture one . This is the cam chain tensioner plug. The aluminium sealing washer under the head of the plug errodes with water/salt from road and allows oil leak . The washer is approx £2 from Opc , oil needs to be drained and crankshaft locked in a safe position to allow removal of plug to replace washer. Do both cylinder bank plugs at same time . Did both mine on 996 every second year ( because of poor quality of rings ) during service whilst oil being changed as cheap to do then. Regards.

POST 3 / ORIGINAL POSTEROriginal post

Thanks. I believe it was an OPC! I thought that ay be one of the leaks, there seems to be a second leak (pic 2) in the junction where RMS happens. What do you think? Cheers in advance!

POST 4Original post

If pic two is at 6 o'clock on engine case it could be rms or intermediate shaft seal . The oil stain looks to be pretty high up crankcase though so could even be spark plug tube seal weeping and oil running down casing to low point. My 996 had this and leak source was only seen when car on ramp. Regards.

POST 5 / ORIGINAL POSTEROriginal post

Polome said: If pic two is at 6 o'clock on engine case it could be rms or intermediate shaft seal . The oil stain looks to be pretty high up crankcase though so could even be spark plug tube seal weeping and oil running down casing to low point. My 996 had this and leak source was only seen when car on ramp. Regards. Yes the exact place of RMS. Interestingly there is oil in more than one place - looks like two leaks. As I told the guy, if it's simple no problem if reflected in the price, if RMS, it's a bigger issue.

POST 6 / ORIGINAL POSTEROriginal post

The initial message was deleted from this topic on 22 September 2014 at 13:08

POST 7 / ORIGINAL POSTEROriginal post

Thanks for all the help everyone. I've deleted the images so as to be fair to the bloke selling. Cheers

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