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How long is a clutch supposed to last?
#1

My car has around 110K miles on it now, and as far as I know it's on the original clutch, and it shows no sign of getting weak (although I know from past experience that they tend to go out without warning). This seems incredible to me. I always match revs when I downshift, which I'm sure helps, but I've never heard of a clutch lasting this long, especially in a moderately powerful car. Anybody else out these with an original clutch with mileage comparable to, or greater than, mine? Thanks.
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#2

it can, but i'm betting it's getting close - typically they seem to be about 80k or so - some more - some less - the dmf helps a lot here - it absorbs the impacts that would normally result in friction

cut whatever it is in half with a light flywheel though - also reduce the expectancy if you track the car
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#3

Cloud,

I'm at 143K on my original clutch.
Pete and Max measured the clutch position last year when I was at RSBarn and incredibly estimated that I had 30% still left.

Jamie
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Early '92 black coupe with classic grey interior, LSD, Original 17" C2 Turbo wheels, sport seats, and recessed hood badge. Recent upgrade to RSB Stage 1 with air box mod, Yellow Koni Sport adjustable shocks and struts, stiffer springs, RSB SS clutch and brake lines, and 968Forums sun screen...
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#4

are you sure it's original? if so, i think that is a record
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#5

My car is on its second stock clutch, and approaching 180,000 miles. I'll be at the Barn next Wednesday, maybe I'll have an inspection done. Since I wasn't sure what direction I'd want to go when the current clutch fails, I'd purchased a NOS clutch, pressure plate, and flywheel a couple of years ago. Still not sure which way I'll go when the time comes, but if I go lightweight, I'll have these parts for sale.
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#6

I replaced mine at 90K Kilometers. The disc and flywheel was OK, but I replaced them as a "while you're in there" precaution, but my pressure plate, fork shaft and Fork Shaft bearings were completely shot.
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Johann van Biljon





'60 Aetna Blue 356B T5 Coupe

'94 Midnight Blue 968 Coupe - No Sunroof, RS Barn Stage 1 Chip, Airbox mod, RS Barn Cat-back, NGK irridium spark plugs - Sold

'92 Signal Red 964 Carrera 4 - Sold

'84 Burgundy 911 Carrera 3.2 Cabriolet - Sold

'90 Silver 944 Turbo S with M030 and limited slip diff - Sold

'76 Silver 911 Carrera 3.0 Targa - Sold

'79 Silver 924 5 speed - Sold
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#7

"are you sure it's original? if so, i think that is a record"

I've had the car since 1995 with 20K miles, so chances are it's original.

Think I'll pop open a Guiness tonight.
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Early '92 black coupe with classic grey interior, LSD, Original 17" C2 Turbo wheels, sport seats, and recessed hood badge. Recent upgrade to RSB Stage 1 with air box mod, Yellow Koni Sport adjustable shocks and struts, stiffer springs, RSB SS clutch and brake lines, and 968Forums sun screen...
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#8

lol - yeah- sacrifice a chicken, dance around 3 times counter-clockwise - bow to the east, whatever you need to do to thank your good fortune

and go out right now and buy a lottery ticket
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#9

I am the second owner of my 968. The original owner really torx up the clutch and I replaced it at 26,000 miles. the car now has 138,000 miles on it and I have about 20% left.

Cloud, Jamie and Anchorman, let us hope that we haven't jinxed [img]style_emoticons/<#EMO_DIR#>/ohmy.gif[/img] ourselves by even talking about this subject. It would be very bad [img]style_emoticons/<#EMO_DIR#>/mad.gif[/img] Karma if we all end up doing clutch jobs over the Holidays!!!!
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Chris Vais
1994 Coupe Midnight Blue Metallic
2015 Audi Allroad Quattro Brilliant Black
2008 Audi A5 Brilliant Black
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#10

Flash,

Good point about the DMF providing some additionl shock absorption, which should indeed extend the life of the clutch. I've tracked the car fairly extensively, and the previous owner did, too, so I'm really amazed it's still hanging on. I'll definitely go with a lightweight flywheel when the clutch finally gives out. I may be too old to drive by then, though [img]style_emoticons/<#EMO_DIR#>/cool.gif[/img]
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#11

Think I read somewhere that something about the connecting rods in the early '92 models tends to extend the life of the clutch.

[img]style_emoticons/<#EMO_DIR#>/wink.gif[/img]
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Early '92 black coupe with classic grey interior, LSD, Original 17" C2 Turbo wheels, sport seats, and recessed hood badge. Recent upgrade to RSB Stage 1 with air box mod, Yellow Koni Sport adjustable shocks and struts, stiffer springs, RSB SS clutch and brake lines, and 968Forums sun screen...
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#12

I replaced mine at 120,000. When it went, it was in pieces.
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#13

I have the original clutch at 97,000 miles and it shows no signs of failing. She has seen about a dozen DE events, other than that all street driving.
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#14

I don't think track driving is particularly hard on the clutch. Most DE evens don't involve a lot of down-shifting, and definitely no "jack rabbit" starts. The tires take a brutal beating, and maybe the brakes, but the clutch seems to have it pretty easy.
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#15

RS Barn replaced my clutch disc and DMF last year at about 70K miles. Rubber center in DMF was allowing too much play, causing lots of unwanted vibration at idle and the clutch disc was just about gone.



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SOLD! 1992 - 968

2002 Lexus LS 430, Silver/black, "Ultra Luxury", with reclining, heated, massaging back seats, and 4 cup holders.
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#16

I did mine at 125k mostly due to a failing DMF.
Disk still had lots of life left.
I'd say the DMF helps longevity, but the driver has alot to due with it.

Pretty amazing footwork Jamie!
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#17

Mine went at approx 100K miles, the friction material desintegrated..
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Nacht Blau 968 cab, Wimbledon Green 993 coupe
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#18

Had mine checked a few months ago, when I had the slave cylinder replaced, all ok good 'depth', at 110K on a 92 coupe.
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2008 987 Cayman S Ruby Red

1992 968 Coupé Rubystone Red

1985 924 Coupé Garnet Red (sold)

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#19

Replaced at 75k miles.
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#20

Thanks for all the inputs, guys. As with so many things on this car, the degree of variability in clutch life is pretty amazing. I wonder if it's because these cars weren't built on an assembly line, using standard manufacturing practices for the industry.
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