5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDual Mass Flywheel
Leading reported evidence
Install garage managed
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 also had a leak what i thought was the RMS, turns out when the previous owner had a new IMS fitted the garage managed to nip an O ring while installing the new IMS solution.
Leading evidence: 'Install garage managed' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check backlash or movement' (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 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
All that it caused was a deep clonk whilst pulling away, having used the engine to slow down in the last moments before the stop.
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 · Original poster
Please see the video attached, i clamped the flywheel to the bench to check the backlash or movement.
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.
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 also had a leak what i thought was the RMS, turns out when the previous owner had a new IMS fitted the garage managed to nip an O ring while installing the new IMS solution.
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.
5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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: 20261028T003752Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Evening all,
I'm new to 996 ownership, last September I bought a 2003 carrera 2 manual. The last month or so i noticed a rattle or clunk when i press the clutch pedal before coming to a stop, or sometimes accelerating or decelerating. I've added Powerflex bushes to the gearbox mount, this seemed to help but may have been wishful thinking.
Anyway so after lots of searching i came to the conclusion the dual mass must be on the way out, the clutch was changed about 18 months ago and has only done around 5/6k nothing in the receipts to suggest the dual mass was changed at the same time. The car has done 73,000 miles.
Please see the video attached, i clamped the flywheel to the bench to check the backlash or movement. I've found the Porsche documentation that states the limit for that play is 15mm but it doesn't really state how much/little force needs applying to get that measurement.
My question is, do you guys think the flywheel is what could be making the noise?
I've also found plenty of jobs to while the gearbox is out..
Thanks for looking
Mark
https://youtube.com/shorts/f05UhLeyUYQ?feature=share
DMF
Many years ago (!) my 996.1 suffered a serious DMF fail. I believe nearly all series 1's suffered the same fate.
The flywheel was heated to 150-200 degrees C and the backlash measured. In my case nearly 45mm at the circumference.
All that it caused was a deep clonk whilst pulling away, having used the engine to slow down in the last moments before the stop.
There was no rattle but as the car was only just purchased with a full OPC warranty (that was not honoured) I was £1500 out of pocket and pretty rattled.
That looks knackered to me. The 15mm is referring to the 'free play' and measured at the outer edge, that looks a lot more than that to me. Compare to a new flywheel and you will see the difference!
Thanks for the reply's and advice, i have ordered a new one now.
Ended up with several seized/sheared bolts in the removal and a failed engine mount, they look like the original mounts anyway, probably due replacement.
I also had a leak what i thought was the RMS, turns out when the previous owner had a new IMS fitted the garage managed to nip an O ring while installing the new IMS solution. :thumb:
This is a source reference. Confirm exact model applicability in the original material.
