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YOUR RESEARCHvalve guide slipped in 2000 S. anyone else? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Check with an idependent porsche mechanic
Performed · outcome unconfirmed
No successful repair reported for this finding.
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valve guide slipped in 2000 S. anyone else? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Check with an idependent porsche mechanic' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check with an idependent porsche mechanic' (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.
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Check with the largest porsche dealer in the country
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 checked with the largest Porsche dealer in the country.
valve guide slipped in 2000 S. anyone else? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Install 50 miles ago at the porsche dealer
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 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
Had IMS/clutch proactively installed 50 miles ago at the Porsche dealer.
valve guide slipped in 2000 S. anyone else? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Inspect while the engine is out of the car
Suggestion or failed attempt
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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.
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Suggestion · Original poster
I am deciding if i need to have the other cylinder head pulled, dismantled and inspected while the engine is out of the car.
valve guide slipped in 2000 S. anyone else? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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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.
3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
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Generation: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
#272
motorcity986
Registered User
Join Date: Jul 2015
Location: detroit
Posts: 1 valve guide sliding in head on 2000 S 3.2 S
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I have a 2000 986 S. 43,000 flawless miles.
Had IMS/clutch proactively installed 50 miles ago at the Porsche dealer. Found no signs of old bearing failing.
50 miles later, check engine light, poor performance. Tapping/knock from engine as well. Flat bed in to dealer.
Found one of the cylinders flooded w/ fuel. At first, they thought a mass flow sensor. Nope. Dropped engine, pulled head.
2 of the 3 valve guides are sliding (can push out of cylinder by hand). Valve seat came off.
Car has never overheated or been abused.
Anyone ever hear of this happening? Nobody can figure out why???? Was there a flaw in the machining process, so sloppy fit for the valve guides?? Would it be this way on the other side?
And if so, did they find the same problem on the other cylinder head?
I am deciding if i need to have the other cylinder head pulled, dismantled and inspected while the engine is out of the car. Anothe $2000.00, so an important question.
My dealer says they have heard of this, but never seen one. I checked with an idependent Porsche mechanic. Same answer. I checked with the largest Porsche dealer in the country. Same answer. Is my car that unique?
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Last edited by motorcity986; 07-22-2015 at 05:22 PM. Reason: update
It honestly sounds like the typical "shiitake happens" scenario. This is the first time I've read about this issue.
I have little doubt Mr. Raby won't have an opinion on this or won't have seen this if it's a regular occurrence. It may even be a collateral damage issue from something more common happening.
Good luck with it.
It seems peculiar that this problem would happen so soon (not even a full tank of gas) after the IMS bearing work. It makes me wonder if it wasn't caused by the IMS bearing work somehow. Sorry I can't add more light to it than that, but IMO the timing seems very peculiar.
This is a source reference. Confirm exact model applicability in the original material.
