13 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFcuking camshafts - Page 1 - Porsche General - PistonHeads UK
Reported or suspected cause
caused by lack of oil
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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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 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 problem is caused by lack of oil to the chain, the chain stretches and overloads individual teeth, the teeth wear, then fatigue break off, the others overload and eventually the chain slips, bends all the inlet valves, sometimes destroys the tensioner and occasionally breaks the tensioner lugs off the heads.
Fcuking camshafts - Page 1 - Porsche General - PistonHeads UK
Read full discussion summary
Leading evidence: 'caused by lack of oil' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'caused by lack of oil' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace camshafts, has this been done do you know' (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 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
It makes it worse it you put a new chain on wothout changing the camshafts, has this been done do you know?
Fcuking camshafts - Page 1 - Porsche General - PistonHeads UK
Run like clockwork ever since
Suggestion or failed attempt
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 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
I had mine done at Hartech at the 96k service, expensive job ( cams alone are £700 )but it was very well done and the car has run like clockwork ever since.
Fcuking camshafts - Page 1 - Porsche General - PistonHeads UK
Use ones available if required
Suggestion or failed attempt
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 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
Cams are around £500 each from memory, but we usually have used ones available if required.
Fcuking camshafts - Page 1 - Porsche General - PistonHeads UK
Use shots
Suggestion or failed attempt
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 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
Just out of interest Thom, what camera are you using for your shots?
Fcuking camshafts - Page 1 - Porsche General - PistonHeads UK
Run like clockwork ever since
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
I had mine done at Hartech at the 96k service, expensive job ( cams alone are £700 )but it was very well done and the car has run like clockwork ever since.
Fcuking camshafts - Page 1 - Porsche General - PistonHeads UK
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.
caused by lack of oil
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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 problem is caused by lack of oil to the chain, the chain stretches and overloads individual teeth, the teeth wear, then fatigue break off, the others overload and eventually the chain slips, bends all the inlet valves, sometimes destroys the tensioner and occasionally breaks the tensioner lugs off the heads.
Fcuking camshafts - Page 1 - Porsche General - PistonHeads UK
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.
13 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: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I take it you drive a 944S2, in which case it's most likely from the camshafts as they are well known for shedding teeth once the cam chain stretchs. It makes it worse it you put a new chain on wothout changing the camshafts, has this been done do you know? What sort of mileage has your car done? I had mine done at Hartech at the 96k service, expensive job ( cams alone are £700 )but it was very well done and the car has run like clockwork ever since. Get in touch with Barry or Grant at Hartech and they will help you out.
www.hartech.u-net.com/
Andy
Oh dear that sounds nasty - I wasn't aware that the camshafts needed changing as well as the cam chain/tensioner! My car has done 88,000 miles so its probably due to have the tensioner checked...
Another brilliant piece of Porsche engineering.
The problem is caused by lack of oil to the chain, the chain stretches and overloads individual teeth, the teeth wear, then fatigue break off, the others overload and eventually the chain slips, bends all the inlet valves, sometimes destroys the tensioner and occasionally breaks the tensioner lugs off the heads.
You should pre-empt the problem by replacing the chain every 48,000 miles, no matter what anyone else (i.e. Porsche) tell you. Cams are around £500 each from memory, but we usually have used ones available if required.
Hi Marcus,
Yes, I'm quite happy things turned this way out!
Unfortunately I still have no idea where these bits of pinion teeth could come from.
I asked a former OPC mechanic today but he had no idea apart from the camshafts.
What's more, the plans of the engine do not give away anything; a friend thought about the oil pump but since we don't know how it's made inside we can't really tell.
I will keep you informed if we manage to dig something out of it
>> Edited by Thom on Thursday 12th December 21:29
These pictures were not taken by myself but by a friend.
As far as I can remember what he told me his digital camera is "not very good".
...
Now you talk about it I know what I should have written on my Christmas wish list
edited: the one on my profile was taken by
another
chap
>> Edited by Thom on Wednesday 25th December 08:47
Just done the oil on the car and found out some pieces of broken pinion teeth in the old oil;
So far I have no clue if it could be anything else than pieces of broken teeth from the camshaft(s?) since I haven't had the time to remove the cam cover yet.
(FYI a picture of another car
here
)
Any thoughts on any other possible cause?
This is a source reference. Confirm exact model applicability in the original material.
