Hi all I'm having some issues regarding clutches. As part of my engine rebuild I'm installing a TTV lightweight flywheel so looking to move to a sprung clutch plate but I'm confused what the size should be. I ordered a sprung clutch direct from Sachs in Germany but when it arrived the spline size looked a bit small compared to the one that came off. I also ordered a clutch kit from ECP for the pressure plate and release bearing, it looked small next to that one. My clutch centering tool will not fit in the new clutch. I took some measurements and got the following results. Sachs performance clutch for 996 3.4 24.2 x 23T Helix Autosport catalog says 996 3.4 24.2 x 23T Old clutch that came off 26 x 23T New sachs clutch ECP 996 3.4 26 x 23T Clutch alignment tool (website says for all 996 models) 26 x 23T As you can see there does not seem to be any consensus which is the correct size. I initially thought maybe I have a later gearbox fitted, apart from the fact that the ECP clutch was correct and the alignment tool fits my old one. Do Sachs and Helix have the wrong information? Should it be 24.2mm or 26mm for a 996.1 :?:
Discussion summary
YOUR RESEARCHClutches
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Read captured repliesInsufficient extracted evidence does not mean there is no answer in the original discussions.
1 matching discussions · 1 captured posts examined · 0 partial discussions
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.
1 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: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
This is a source reference. Confirm exact model applicability in the original material.