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997.1 Clutch Lifespan

Old 01-10-2018, 01:18 PM
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edchrab
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Default 997.1 Clutch Lifespan

I own a 997.1 and I am experiencing some slippage at high revs...is this common...and is it time to replace it. The mileage is 52k and I drive it aggressively but no track
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Old 01-10-2018, 02:03 PM
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P0rsch3F113
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My 2006 997.1 clutch will need replacing this Spring, I think. I experience no slippage...in fact, clutch feel and function are normal. I get an intermittent "thunk" (that I can hear and feel in the clutch pedal). The sound definitely comes from the area of the clutch. My Indy thinks a small spring on the clutch disc may have broken but won't know for sure until he gets in there.

I don't track either and I've got about 30000 miles...but the car will be 12 years old this Feb.

Don't know if your slippage or my noise is normal but mechanicals suffer from age and use too. I've generally had good luck with clutches in other makes but my 911 isn't driven daily...maybe just unlucky this time.
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Old 01-10-2018, 02:52 PM
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cosm3os
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52k isn't unheard of for needing a new clutch. Your symptoms seem to answer the question . .. .
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Old 01-10-2018, 04:10 PM
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I bought my C2S with 30k miles and had to replace the clutch at 45k miles. I now have 120k miles on the car with the 2nd clutch.
I could have destroyed the 1st clutch, but I like to think the previous owner did. My driving habits have changed over the years.
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Old 01-10-2018, 07:40 PM
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TheBruce
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Good post. You should create a poll on this to understand any differences between the 997.2, 997.1 and 3.6, 3.8 models. I know the 3.8 has a self adjusting clutch, the 3.6 does not, but the 3.6 clutch kit costs $100 more. No clue why.

Some people say clutches go at 40-60k miles, others say they go 100k+. I've seen a number of posts of people getting 80, 100, 120k miles on their original clutch. I believe Sachs has some copy on their site stating the recommended clutch replacement was every 50k miles and flywheel every 100k.

Unfortunately mine started going last week at 52k miles. Ive written a couple posts on it in the past few days. I first got a slight vibration during clutch release but no slippage and the clutch wasn't stiff. My indy thought the sleeve of the slave cylinder pushrod might have broken off creating metal on metal vibration. He was wright and we replaced it. That eliminated 80% of the vibration but it still felt a little funny. I drove 2 more days and then it started going south again. Some of the vibration came back, the clutch pedal stopped springing back with its normal force, and then it finally slipped in 4th gear. This was in the span of 5 minutes with cascading symptoms.

Im replacing mine in a few days. Currently waiting for parts.
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Old 01-11-2018, 02:07 AM
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becauseitis
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997.1 c4s with 62,000 miles on original clutch. still seems very strong. no tracking but some spirited driving here and there.
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Old 01-11-2018, 09:50 AM
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Anyone bothering with the IMS while in there for the clutch?
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Old 01-11-2018, 10:19 AM
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Bruce In Philly
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My 2000 Boxtser S, I got 197K miles on the clutch when the engine blew and killed the car.. I don;t know how long that would have lasted; I was the original owner.
My 2009 C2S, I got 120K miles on the clutch but I purchased the car with 26K miles on it... so I am either embarrassed or I blame the original owner.... um, I blame the original owner.

Clutch life is all in rev matching (aka heel toeing). I do this all the time and is a source of pride.... it is part of the craft of driving.

Peace
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Old 01-11-2018, 11:22 AM
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yvesvidal
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My opinion is that the 997.1 clutch is not very solid and multiple failures have been reported. In comparison, my 20 years old BMW 540 is 204,000 miles on the original clutch.
My 997.1 clutch failed at around 70K miles after I owned the car for 5 years and drove close to 40K miles with it. I do spend a lot of time in traffic jams, by scorching temperature of 100 degrees plus in the summer time and that does not help.
When I replaced mine there was no obvious signs of damages and most likely the pressure plate was the culprit.
Details of the transplant can be found here: http://murenae.com/FTP_Files/997.1-Clutch-Work.pdf

As Bruce said it very well, the best way to protect your Clutch is to use heel toeing. But to do that you will first have to replace the pedals......

Yves
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Old 01-11-2018, 12:21 PM
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cosm3os
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Originally Posted by yvesvidal View Post
But to do that you will first have to replace the pedals.....

Yves
Why's that?
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Old 01-11-2018, 12:59 PM
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Chumaco
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997.1 C2S. 70k miles on original clutch and currently at 90k total miles.
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Old 01-11-2018, 01:19 PM
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jz1976
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I replaced mine at 48k. Backing out of garage and heard a "ting" and no more clutch. Replaced the flywheel and the RMS while it was open. I bought mine at 40k and have no idea how the clutch was treated in those 40k.
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Old 01-11-2018, 02:40 PM
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ADias
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A good manual driver's clutch goes well past 100k miles. But in any case I would not expect a clutch driven by a 911 driver to last less than 60k miles.
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Old 01-11-2018, 03:06 PM
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yvesvidal
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Originally Posted by cosm3os View Post
Why's that?
Just try to do an heel toeing..... and let us know how it works out for your ankle and knee.
There are kits available that will align the pedals to make it a lot easier.

Yves
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Old 01-11-2018, 03:47 PM
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Edgy01
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Your experience will vary. I usually get over 100,000 miles on a Porschecclutch, but my pressure platecfailed prematurely and it died in the 60s.

Not a good sign of parts quality from Porsche. They have gotten cheaper on some things.
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