sanity check: Slack at the top of pedal after Sachs 2.5 install
 

Hey guys, looking for some confirmation whether this behavior is normal or not. The car is a 997.1 turbo that just had a sachs 2.5 installed.

There is about half inch of slack movement at the top of the pedal. I can't remember if the stock clutch had this (car is not a daily driver).

Is this normal for a sachs 2.5? other than the slack, the car goes into gear just fine and everything else seems fine.


Any insight will be gladly appreciated!

-Jose

Mine does that. But not as clicky as yours though. Does it do the same with the engine on?

i am pretty sure that this is normal. (I am on vacation or could have checked right now).

Its only a problem if the pedal gets stuck half way. You will need to bleed your clutch then, i had to bleed mine 3 times after i installed my 2.5.

Enjoy your new clutch!

It's not really that clicky in person, it may be the mic picking up extra noise. The video IS with the engine on.

Funny you say that! When I first installed it the pedal would stay stuck at the bottom, even after bleeding. I had to re-bleed the system again a second time and now it doesn't get stuck anymore.

Thanks for the insight guys. Car drives fine, in fact, super smooth now. I just couldn't remember if that slack was there with the stock clutch or if its something that comes with the sachs 2.5 or if its a legitimate issue with install.


-Jose

ok so new developments. Yesterday I drove the car and a couple times after I would depress the clutch to change gears, the pedal would only return up to where the "slack" point is (half inch of travel from the top position to where it starts to get hard) and then just stay there. This just doesn't feel like it's normal.

Anyone else have any input?

-Jose

you need to bleed your system again.

Like i said, i had done mine 3 times after my 2.5 install. The first two times, i had experienced exactly what you are describing.

ok, I will bleed again! :)

Thanks for your input!

-Jose

Inspected everything again and found a leak at the coupling. There's a small oring inside there so it was replaced. Re-bled the system and the pedal was perfect. Drove it around for 10 miles or so and everything was fine. Wake up this morning and the pedal is stuck at the bottom again!

At this point I'm not sure what it could be.

Thoughts?

https://cimg3.ibsrv.net/gimg/www.6sp...fe90fec965.jpg

When my clutch was acting up on my 07 Turbo, the issue was a leaking master cylinder (only 29K miles on the car). This could be the issue in your case. Also when you a repair leak in a pressurized system, the next weakest link will show its ugly face.

i will double check everything this weekend to narrow it down. This has turned out to be such a frustrating issue over something that should be trivial.

-Jose

hope you figure it out, it could be the accumulator, slave or the master.

Found a leak at the reservoir in the front trunk at the cap. I was also able to eliminate the issue being the accumulator.

From what I researched, a leak at the reservoir indicates slave.

Thoughts?

maverick, just to clarify. When you say you experienced the same thing, are you saying that when you would bleed the system, everything worked fine, the clutch would come back up normally but then after 10 miles or so or over night, the pedal would not come up? Because this is what's happening with mine. I bleed it, everything works fine, normal pedal pressure, when I depress and let go, it comes back up perfectly. When I park it, the next morning, the pedal goes down but never comes back up, it stays half way and I have to push it up with my foot.

I've bled 3 times now and same issue. I'm beginning to think it's the slave now. I tested the accumulator and I'm fairly certain its working fine. I also checked under the dash by the pedal for leaks at the master and everything is dry. All signs point to slave at this point.

-Jose