9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHClutch Hydraulic Bleeding (Reverse Flow Direction)
Leading reported evidence
Disconnect slave i just let everything drip out and dealt
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Performed · outcome unconfirmed · Original poster
When I disconnected my old slave I just let everything drip out and dealt with the mess so it was half empty before I tried to pressure bleed.
Leading evidence: 'Disconnect slave i just let everything drip out and dealt' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'really is air in the line or the master' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Disconnect helper spring' (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.
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Performed · outcome unconfirmed
When you have a fully drained system with a replaced slave and master, it does not.
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Discussions that suspect a cause
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Suspected cause · Original poster
Only thing left to suspect really is air in the line or the master.
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Discussions that contain suggestions
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Suggestion
Have you disconnected the helper spring to see if that is somehow binding up?
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Suggestion · Original poster
As I�m contemplating changing my master cylinder and bleeding because I suspect I have air trapped in the line since the first time I bled (perhaps incorrectly), I came across this video:
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9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T052503Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hey all,
As I�m contemplating changing my master cylinder and bleeding because I suspect I have air trapped in the line since the first time I bled (perhaps incorrectly), I came across this video:
You Tube
Here, this guy explains how to bleed via introducing fluid through the bleeder valve on the slave and forcing the air up through the line where it comes out the reservoir. Essentially it�s the opposite direction in which it�s recommended to bleed for our cars but I�m curious if this can be done on the 996 C2.
Are there any drawbacks to doing it this way?
I�ve done this twice and something still feels off on the clutch pedal. It sticks about halfway up when cold, fine when it�s warm. It�s soft at the top. It engages fine actually, closer to the bottom where there�s more pressure. I�ve replaced clutch, pressure plate, flywheel, release bearing, slave cylinder. Only thing left to suspect really is air in the line or the master.
Make sure you're bleeding with the clutch pedal depressed.
Also, I have had situations where you cannot get air out with a pressure bleeder and I have had to bleed backwards by removing and depressing the slave. This works like a charm.
--Aaron
The other think to remember expecial when bleeding the old school method is there is a divider tube in the mc resi so if u loose a brake line the clutch does not blead down. U have to keep the level pretty high at all times to prevent sucking air into the system. I pressure blead with the motive tool. It takes about 10 sec to flush. I do it every season and have never had an issue.
The pressure bleeder works great for a system with no air in it.
When you have a fully drained system with a replaced slave and master, it does not.
The reverse bleed is the only thing I can get to work in some of these situations, it was not fun to figure that one out.
--Aaron
I am thinking this is probably part of the issue. When I disconnected my old slave I just let everything drip out and dealt with the mess so it was half empty before I tried to pressure bleed. I will try pressure bleeding with the pedal down as I haven�t tried that. I will probably move on to this other method. I think my master is OK, I don�t see any leaks. I do hear some noise though.
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