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911uk

Clutch slip

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Original source
3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHClutch slip

Leading reported evidence

Replace 1/3 worn clutch friction plate anyway

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 replaced the 1/3 worn clutch friction plate anyway, with a Sachs kit of friction and spring plate, plus release bearing.

Clutch slip
Read full discussion summary

Leading evidence: 'Replace 1/3 worn clutch friction plate anyway' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 1/3 worn clutch friction plate anyway' (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 · 3 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace salve cylinder

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 replaced the salve cylinder with Sachs and using the kit from Design 911, replaced the worn release arm, pivot pin, rubber grommet and clip, with the updated version, which I think is just 997 parts.

Clutch slip

Replace worn release arm, pivot pin, rubber grommet and clip

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 replaced the salve cylinder with Sachs and using the kit from Design 911, replaced the worn release arm, pivot pin, rubber grommet and clip, with the updated version, which I think is just 997 parts.

Clutch slip

Test ok

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 didn't change the flywheel, as it looked on good condition, didn't look that old and tested OK for slight movement.

Clutch slip

Replace manifold bolts

Suggestion or failed attempt

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 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

I just bought a second hand Stomski jig to do the headers and replace the manifold bolts with titanium studs, as the parts have been sitting on my shelf for a few months now.

Clutch slip
Frequently discussed actions (6)

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

Replace 1/3 worn clutch friction plate anyway

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 replaced the 1/3 worn clutch friction plate anyway, with a Sachs kit of friction and spring plate, plus release bearing.

Clutch slip

Replace manifold 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 · Original poster

I just bought a second hand Stomski jig to do the headers and replace the manifold bolts with titanium studs, as the parts have been sitting on my shelf for a few months now.

Clutch slip

Replace salve cylinder

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 replaced the salve cylinder with Sachs and using the kit from Design 911, replaced the worn release arm, pivot pin, rubber grommet and clip, with the updated version, which I think is just 997 parts.

Clutch slip

Replace worn release arm, pivot pin, rubber grommet and clip

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 replaced the salve cylinder with Sachs and using the kit from Design 911, replaced the worn release arm, pivot pin, rubber grommet and clip, with the updated version, which I think is just 997 parts.

Clutch slip

Test ok

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 didn't change the flywheel, as it looked on good condition, didn't look that old and tested OK for slight movement.

Clutch slip

Use kit

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 · Original poster

I also replaced the salve cylinder with Sachs and using the kit from Design 911, replaced the worn release arm, pivot pin, rubber grommet and clip, with the updated version, which I think is just 997 parts.

Clutch slip
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.

3 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all, Ever since I've had my 98 3.4, the clutch has slipped if I try to give it full berries from a standing start. I had it down to oil contamination on the clutch plate, but when I recently dropped the gearbox to get it rebuilt for a pinion bearing whine, the IMS and RMS were fine, with no leaks and both had been done recently. I replaced the 1/3 worn clutch friction plate anyway, with a Sachs kit of friction and spring plate, plus release bearing. I also replaced the salve cylinder with Sachs and using the kit from Design 911, replaced the worn release arm, pivot pin, rubber grommet and clip, with the updated version, which I think is just 997 parts. It still slips if pulling away too sharply and can be provoked if changing down too fiercely. It won't slip under load though and putting it in 4th at just over 1,000rpm then burying it, the engine just pulls all the way with no slip. I did wonder if it's just my cack handed clutch control, as I've driven auto cars for 10 years and my Cayenne and VW campervan are auto/DSG, but in the past I used to club race motorcycles and never had an issue with race starts on 250 2 strokes, which are tricky to get off the line. I didn't change the flywheel, as it looked on good condition, didn't look that old and tested OK for slight movement. It's not bad enough to drop the gearbox and is fine under normal, even spirited driving, it just needs a bit more care at the traffic light race start GP. Does anyone else suffer this? Maybe I'm being impatient and it needs bedding in? It's only done 20-30 miles with very few stop starts.

POST 2Original post

Clutch assist spring on your pedal is too harsh. Read here: http://911uk.com/viewtopic.php?t=148455

POST 3 / ORIGINAL POSTEROriginal post

Many thanks. I'd never have thought of that. I'll add that to my "to do" list, for the spring. I just bought a second hand Stomski jig to do the headers and replace the manifold bolts with titanium studs, as the parts have been sitting on my shelf for a few months now. :thumb:

This is a source reference. Confirm exact model applicability in the original material.