20 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBought my first Porsche!
Leading reported evidence
Use larger 6305 bearing
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
engines, the intermediate shaft was redesigned and used a larger 6305 bearing. This solved the
Leading evidence: 'Use larger 6305 bearing' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check suspected damage' (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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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
used two foundries to cast their V8 engine blocks.
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
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Suggestion
Yes, Bore-scoping is a direct method to immediately check for suspected damage to the cylinder lining.
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
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Suggestion
If you have a manual, you're likely to replace the clutch sometime before you hit 100k.
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
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Suggestion
What did come out of the study was - there were a lot of Cayennes running around with well over 100k miles on them and no sign of bore scoring.
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.
20 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Planet-9: 1 discussions
0 evidence records excluded for query context · 1 excluded by outcome qualification · 1 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
New to the platform and recently bought my first
Porsche
- a 2006
987.1
Cayman S
Been in love with it since day one but I wasn't able to drive it much before winter came
Paid 30k USD for it with only 55k miles on it after 20 years! Best money I ever wasted xd
I’d been looking in this price range for a while and never thought I could afford something like this - turns out depreciation can be a good thing! Now we pray the engine doesn't explode 🙏
That's all
thought on the build? happy to discuss anything!
Congrats. I love the look.
I really like the body skirts, but man, I already scrape the front enough with the
Cayman R springs
, just can't pull the trigger. But love seeing it and wish I had it!
Beautiful!!! What wheels are those? At least from these angles, they don’t look like Fuch’s replicas but they do have a very similar look and I like it.
I'm not usually a fan of black wheels but those look nice. I think it is the silver rim. Also not sure if I've ever seen those graphics you've got on the side. Pretty eye-catching.
Sweden does have winters. I can understand why your car "hibernates" for the worst of it.
Rob
Don't worry about the engine blowing up. In researching my
2006 Cayman S
, I learned that it was built in December 2005. The
IMS bearing
issue does not affect every
M96 engine
. This is not an issue of “wear and tear” but an issue of weak metallurgy. I read statements by
Porsche
engineering experts that if it did not go bad in the first 30 to 35K miles then it would likely not be a problem. I was still nervous, until I learned that beginning with my model year, 2006 through 2008
Porsche 987
Boxster
,
Cayman
, and 997
911
engines, the intermediate shaft was redesigned and used a larger 6305 bearing. This solved the
IMS bearing
issue for my
Cayman
.
Congratulations!! Looks beautiful - great color combination. I purchased my '07
Cayman S
in 2011 from Reeves in Tampa after a year in AFG. 25k miles then, will hit 100k miles this summer. If you have a manual, you're likely to replace the clutch sometime before you hit 100k. I used that as an opportunity to replace the
IMS
. No other issues with the car. YouTube has made most of the maintenance "owner friendly". Enjoy!!
Agreed. Borescope is your friend, perhaps whenever you do your
next
spark plugs
change put the scope inside and examine the cylinder heads and inner lining, it will help you gauge if there are any scoring marks that way you can remedy it upfront rather than wait for the surprise.
Yes, Bore-scoping is a direct method to immediately check for suspected damage to the cylinder lining. Oil analysis is an indirect method to monitor and discover signs of bore scoring - looking for iron, silicon, or aluminum. To diagnose a suspected problem, scope the cylinder walls, as you described. However, the operative word here is SUSPECTED problem. Susceptibility to bore scoring may be the result of prolonged idling at start up. These cars should NOT be warmed up but started and driven off. If a
Cayman
has received oil changes as recommended and has ZERO symptoms of bore-scoring, then there really is no need to scope the engine. If you never let the
Cayman
idle for long periods and there is no ticking sound, no oil consumption, no soot about the tail pipes, or in the engine oil or bumper cover, no puffs of blue smoke on start-up, and no misfires, then there is no need to scope it... I post this only to allay fears unnecessarily created by fearmongering armchair mechanics that spread bore scoring and
IMS bearing
failure hysterics. My
2006 Cayman S
had 63K carefree miles on it when I sold it and the engine was solid because of the expert care and maintenance it received.
Back a decade or so ago - I did a lot of research on
Cayenne
955/957 V8 bore scoring, including a detailed survey of everyone I could find - who had bore scoring, or just as importantly - didn't have bore scoring. The results didn't show a smoking gun sort of result, but it did put to rest a number of the internet "theories" on why it happened.
A huge possible clue was - it stopped happening with the late 2009 production model cars, and was almost never seen or heard of with the 958 series engines.
Scoring was not related to local weather conditions. Cold climate - had bore scoring, but so did temperate and hot climates, close in percentages to the cold climate cars.. It didn't seem related to the type/brand of oil used, or oil additives. It didn't seem related to long warmup times vs drive right off. It didn't seem related to the brand of fuel or fuel additives people used.
What did come out of the study was - there were a lot of Cayennes running around with well over 100k miles on them and no sign of bore scoring. There were ones with 300k miles, original engines. No special maintenance that could be pointed to explaining the longevity.
What changed in late 2009? Before 2009
Porsche
used two foundries to cast their V8 engine blocks. Starting in late 2009, they only used one foundry.
Porsche
didn't cast their own blocks - they bought them fully cast.
I've never heard of there being two suppliers for flat-6 blocks, but it wouldn't surprise me if there was. Redundancy in suppliers is a common business practice. There was a casting number on the V8 blocks that could be used to determine which foundry cast the block, dunno if the same is true of flat-6 blocks.
And as Carlton J. Fredricks would say "Now you know the rest of the story.."
