Planet-9

Head Gaskets

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHHead Gaskets

Reported or suspected cause

block surfaces where the heads fit

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
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 suspect 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.

Suspected cause
Or, if the problem is with the block surfaces where the heads fit, it is possible that the bad surface or surfaces if both sides are affected can be remachined just like the heads.
Original post Read captured discussion
Head Gaskets

Frequently discussed work

Check coolant level prior

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
The car (06 CS, 40K miles) has never run hot and I check the coolant level prior to DEs and have only occasionally had to add coolant.
Original post Read captured discussion
Head Gaskets

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Leading evidence: 'block surfaces where the heads fit' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'block surfaces where the heads fit' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check coolant level prior' (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.

Read captured replies

1 matching discussions · 2 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Check coolant level prior

Suggestion or failed attempt

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
The car (06 CS, 40K miles) has never run hot and I check the coolant level prior to DEs and have only occasionally had to add coolant.
Original post Read captured discussion
Head Gaskets

Tighten bolts

Suggestion or failed attempt

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
They also said that it could be caused by inadequately tightened bolts but I would think it would have shown up long before now.
Original post Read captured discussion
Head Gaskets

Frequently discussed actions (2)

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

Check coolant level prior

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
The car (06 CS, 40K miles) has never run hot and I check the coolant level prior to DEs and have only occasionally had to add coolant.
Original post Read captured discussion
Head Gaskets

Tighten bolts

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
They also said that it could be caused by inadequately tightened bolts but I would think it would have shown up long before now.
Original post Read captured discussion
Head Gaskets

Reported and suspected causes (1)

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

block surfaces where the heads fit

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect 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.

Suspected cause
Or, if the problem is with the block surfaces where the heads fit, it is possible that the bad surface or surfaces if both sides are affected can be remachined just like the heads.
Original post Read captured discussion
Head Gaskets

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.

2 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 · 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

This post may be a little disjointed as I'm currently still numb from finding out both of my head gaskets are weeping. The car (06 CS, 40K miles) has never run hot and I check the coolant level prior to DEs and have only occasionally had to add coolant. The shop doing the tech inspection does not replace head gaskets. A call to the dealer indicates that the job is $5K, assuming that the gaskets are the problem and it is not the cylinder head or the block. TPC has a similiar price and advised me that this is an unusual problem and gave me the heads up that it could be the heads or the block. They also said that it could be caused by inadequately tightened bolts but I would think it would have shown up long before now. I saw STLPCA's thread warning about coolant checks ( http://www.planet-9.com/cayman-boxs...an-boxster-problems-complaints/44177-dont-assume-low-coolant-level-normal.html/ ) Any ideas/suggestions?

POST 2Original post

Well, not to kick you when you are down but having to add coolant periodically I believe means there was a coolant leak. If so this is a pressure leak and the cooling system being able to maintain pressure, especially when the coolant temp gets above 212F, is critical to preventing localized overheating and it is this that can make otherwise good heads leak coolant. If the heads are leaking coolant the condition will not get any better. Best find a qualified shop and take the car in for evaluation. Chances are just the gaskets will need replacing and of course the cooling system leak found and fixed. The shop won't know if the heads are ok or not until it has the heads off and can inspect them for any damage like warpage or cracks. If the heads are otherwise ok but a tiny bit warped or if the gasket surfaces are just corroded to the point the new gasket won't seal the heads can be remachined. The bare and I mean the bare minimum of metal wants to be removed. Removing metal from this surface will affect (increase) compression and make the cam chains a bit looser. A good shop though knows this and should advise you if the clean up cut will have to remove too much metal. Or, if the problem is with the block surfaces where the heads fit, it is possible that the bad surface or surfaces if both sides are affected can be remachined just like the heads. If both the heads and block need the machining forget it... As with the heads the bare bare minimum of metal...well you know the rest. Not the most cheerful news I'm sure. And talk this over with your favorite Porsche technician. Not to get your hopes up too high but a coolant leak from elsewhere can sometimes masquerade as a head gasket leak. Rare but it has happened. Sincerely, Rockster.

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