fullymatted.
Back to search
986Forum

major slave failure - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Add to repair workspace
Open repair workspace
Original source
4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHmajor slave failure - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Replace slave and you don't need

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

I BET YOU'LL BE FINE once you replace the slave and you don't need to remove the trans to do so.

major slave failure - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Replace slave and you don't need' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace slave and you don't need' (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 · 4 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Run pedal went

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

After finally finding the time to re-install the gearbox with the new clutch and flywheel, the very first time I pushed the clutch pedal to get the engine running the pedal went to the floor and the engine started.

major slave failure - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

Replace slave and you don't need

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 BET YOU'LL BE FINE once you replace the slave and you don't need to remove the trans to do so.

major slave failure - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Run pedal went

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

After finally finding the time to re-install the gearbox with the new clutch and flywheel, the very first time I pushed the clutch pedal to get the engine running the pedal went to the floor and the engine started.

major slave failure - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • 986Forum: 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: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

ok, this is the story... :ah: After finally finding the time to re-install the gearbox with the new clutch and flywheel, the very first time I pushed the clutch pedal to get the engine running the pedal went to the floor and the engine started. I didn't put too much attention until I noticed that I had a major leak (more like pouring) fluid from the bottom of the bellhousing.. What could have failed on the slave? It is possible that the plunger was not properly seated and when I pushed the clutch got out of the way, allowing the piston inside the slave body to slide out of the cylinder itself causing the major leak? What are the probabilities that the new clutch got damaged with all that hydraulic fluid pouring out with the engine running? I have the feeling that I will have to remove the transmission mounts to be able to lower it a bit to remove the slave, how hard would this be..? Thank you for your comments Regards, Gilles

POST 2Original post

Quotes source post: 402001

Release any hydrualic pressure on the slave and it will come out with the trans still in place.

POST 3Original post

The clutch should not be damaged, but may be contaminated with brake fluid. If it were me, I'd investigate why the slave cylinder was leaking by removing and inspecting it. My first thought is that the pressure popped the front of it off because it was not engaging the clutch release arm correctly . That is pure speculation as I have never taken a Boxster clutch slave apart, but I have taken plenty of other slave cylinders apart and it would be true for them. If true, you have brake fluid and possibly parts in the bell housing, as well as a mis-installed clutch release arm, meaning the clutch needs to be removed and re-installed. Or The slave cylinder seal happened to spring a huge leak and was ready to go anyway. In that case the front of the slave cylinder is not popped off, and you need to fix the sealing problem only. You still face possible contamination of the clutch disk, and running it that way will damage the clutch, which leaves two options: 1) Put it back together with the seal fixed, and see how the clutch feels. It will likely be grabby and even stink if contaminated - that means pull it all apart and clean everything with brake cleaner. Running for anything more than just getting the first indication the clutch is contaminated will damage the clutch. 2) Strike first by pulling it all apart and cleaning everything with brake cleaner to know everything is correct. With a new clutch I'd go with #2, with and old clutch I'd go with #1. I don't think that trying to clean it while assembled would be effective at all, meaning spraying brake cleaner in to the bell housing - that could take lubricant out of the bearing as well. I've not removed a slave cylinder with the engine installed, but it would be tight! Good luck and keep us posted!

POST 4Original post

I BET YOU'LL BE FINE once you replace the slave and you don't need to remove the trans to do so.

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