Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > 911 / 930 Turbo & Super Charging Forum

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Robbbyg's Avatar
 
Join Date: Aug 2008
Posts: 1,138
Garage
Life of a clutch

How long should a clutch last for with just daily driving zero burnouts no track days?

Brand? i have no idea the company who put the clutch in described the clutch but not the brand or number

It was installed new with new flywheel 12 months and 14000 km ago by the previous owner who had it replaced along with other parts in preparation for the sale


could any of these cause clutch to slip/fail??

Installing short throw gearstick

washing around gearbox and motor with high pressure hose, is it possible that oil has been forced in there?

****ty driving by me when my car had zero torque at the low end and often i had to ride the clutch to move the car off the lights?

also previously a 915 gearbox was added so i dont know what is in there..
Ive contacted the workshop (a supposedly expert company and they couldn't tell me what type they put in!!) even after i gave them the reciapt number, which if they still fail to answer ill be naming and shaming on their CR#ppy professionalism
__________________
Wheels
Last row 1977 3.0 930 260hp built, still reassembling
Row 1998 996 MK1 3.4 296hp new daily driver

Last edited by Robbbyg; 01-28-2014 at 09:24 PM.. Reason: adding information
Old 01-28-2014, 09:13 PM
  Pelican Parts Technical Article Directory    Reply With Quote #1 (permalink)
Registered User
 
Robbbyg's Avatar
 
Join Date: Aug 2008
Posts: 1,138
Garage
Geez i dont know Robbby, maybe someone here might know??
__________________
Wheels
Last row 1977 3.0 930 260hp built, still reassembling
Row 1998 996 MK1 3.4 296hp new daily driver
Old 01-29-2014, 02:31 AM
  Pelican Parts Technical Article Directory    Reply With Quote #2 (permalink)
Functionista
 
manbridge 74's Avatar
 
Join Date: Jul 2011
Location: CO
Posts: 4,428
Normal driving should give many thousands of miles/KMs.

I think the answer lies in the slipping the clutch part of your post.
__________________
Jeff
74 911, #3
I do not disbelieve in anything. I start from the premise that everything is true until proved false. Everything is possible.
Old 01-29-2014, 03:39 AM
  Pelican Parts Technical Article Directory    Reply With Quote #3 (permalink)
Registered User
 
Robbbyg's Avatar
 
Join Date: Aug 2008
Posts: 1,138
Garage
Seems a short wear time, as it was used like that only a half dozen times till i fixed the timing..
Anyway im taking it all out tomorrow ill have a good look at it and get pics then
__________________
Wheels
Last row 1977 3.0 930 260hp built, still reassembling
Row 1998 996 MK1 3.4 296hp new daily driver
Old 01-29-2014, 04:22 AM
  Pelican Parts Technical Article Directory    Reply With Quote #4 (permalink)
Registered User
 
H2odiesel's Avatar
 
Join Date: Jun 2013
Posts: 125
Any signs of a rear main seal leak or a transmission input shaft seal leak? Either one is not conducive to long clutch life.
Old 01-29-2014, 04:34 AM
  Pelican Parts Technical Article Directory    Reply With Quote #5 (permalink)
Registered User
 
sjf911's Avatar
 
Join Date: Dec 2006
Location: Idaho
Posts: 5,561
Garage
If you really have a 915 behind a 930 motor, a stock 915 clutch won't last long with any abuse.
__________________
Steve
Sapere aude
1983 3.4L 911SC turbo. Sold
Old 01-29-2014, 04:37 AM
  Pelican Parts Technical Article Directory    Reply With Quote #6 (permalink)
 
Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
Registered User
 
Robbbyg's Avatar
 
Join Date: Aug 2008
Posts: 1,138
Garage
Yes i know, the clutch part number and model in the reciept is referred to as

Clutch Kit sport +20% Clamp whatever that means

Ive asked them exact specs but couldnt get them , i am lookng at a clutch kit locally and dont know if it will fit theres my dilemma
__________________
Wheels
Last row 1977 3.0 930 260hp built, still reassembling
Row 1998 996 MK1 3.4 296hp new daily driver
Old 01-29-2014, 04:56 AM
  Pelican Parts Technical Article Directory    Reply With Quote #7 (permalink)
Registered User
 
sjf911's Avatar
 
Join Date: Dec 2006
Location: Idaho
Posts: 5,561
Garage
Quote:
Originally Posted by Robbbyg View Post
Yes i know, the clutch part number and model in the reciept is referred to as

Clutch Kit sport +20% Clamp whatever that means

Ive asked them exact specs but couldnt get them , i am lookng at a clutch kit locally and dont know if it will fit theres my dilemma
That sounds like what I had, didn't last long. I now have a Centerforce.
__________________
Steve
Sapere aude
1983 3.4L 911SC turbo. Sold
Old 01-29-2014, 05:26 AM
  Pelican Parts Technical Article Directory    Reply With Quote #8 (permalink)
Registered User
 
wjfk32's Avatar
 
Join Date: May 2008
Posts: 1,257


This is what my 915-Disc looked like when doing a run-3rd gear on a cold night approx. 2 years ago.. Never got on 1 or 2nd gear.)




Went with a KEP-stage 2-915..Very happy with it.

Walt

Last edited by wjfk32; 01-29-2014 at 07:05 AM..
Old 01-29-2014, 07:02 AM
  Pelican Parts Technical Article Directory    Reply With Quote #9 (permalink)
Registered User
 
wjfk32's Avatar
 
Join Date: May 2008
Posts: 1,257
Old 01-29-2014, 07:05 AM
  Pelican Parts Technical Article Directory    Reply With Quote #10 (permalink)
Registered User
 
Join Date: Jul 2006
Location: S. Florida
Posts: 7,160
I averaged around 75,000 miles on a larger diameter pre 1974 BMW 2002 clutch with mostly normal driving.
With the higher torque of a 930 and the inevitable driver 'red mist'... it's probably gonna be less than that.
It depends on how much the driver slips the clutch on starts and how much highway or stop and go city driving.
Old 01-29-2014, 09:03 AM
  Pelican Parts Technical Article Directory    Reply With Quote #11 (permalink)
Registered User
 
Ken911's Avatar
 
Join Date: May 2005
Location: Loxahatchee, florida
Posts: 2,508
ive had about 5 clutches in my car. last one is a KEP best of all of them.
__________________
88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
05 Cayenne S lapis blue
Old 01-29-2014, 10:10 AM
  Pelican Parts Technical Article Directory    Reply With Quote #12 (permalink)
Registered User
 
Tug68's Avatar
 
Join Date: Sep 2008
Location: Rockland Co.New York
Posts: 731
Just doing mine now installing a clutch from TurboKraft, Sachs performance.
Old 01-29-2014, 02:03 PM
  Pelican Parts Technical Article Directory    Reply With Quote #13 (permalink)
Brando
 
quattrorunner's Avatar
 
Join Date: May 2006
Location: Las vegas
Posts: 5,573
Garage
I had a 915 sachs power clutch which is a regular aluminum clutch that is garanteed to hold specified torque. Mine held just the specd torque for about one year before slipping on boost. Some said it probably was slipping the whole time? The sport clutch holds better, I'm sure that's what you have. If your holding torque under boost, keep it. If your slipping now, it will only get worse with time. BTW the 915 won't last long either unless your really nice to it. I have experience there.
__________________
Turbo powa!
1977 911s. it's cool
Old 01-29-2014, 03:19 PM
  Pelican Parts Technical Article Directory    Reply With Quote #14 (permalink)
Registered User
 
6771911esses's Avatar
 
Join Date: Sep 2002
Posts: 2,092
FWIW, when I had the 3LDZ in my car the clutch was fine...no slip on boost. After K27 upgrade...massive clutch slip when boost came on. I have a G50 LSD so I went with the 89 Turbo Clutch/ PP and it is holding up fine.

With the above said....there is an enormous amount of Torque (more than normally aspirated cars) on the clutch which can accelarate the wear.
Old 01-29-2014, 04:12 PM
  Pelican Parts Technical Article Directory    Reply With Quote #15 (permalink)
Registered User
 
Robbbyg's Avatar
 
Join Date: Aug 2008
Posts: 1,138
Garage
Well i just got a excellent price From an excellent person, From an obviously Excellent shop -Chris at Turbocraft-
on a KEP Stage-1 aluminum pressure plate and a Sachs 915 disc, with slotted organic lining and spring hub which i think most of you guys use as minimum , But i will try to make happen that's for sure,
And there is no way ive done my clutch in after six months of driving, this is my third Porsche and this one i have driven more sedately then my others (im in the mountains here only one traffic light in 10 miles) which clocked up many more miles with no clutch problems on others, i think i mentioned the prev owner had just had it put in for the sale. id say it was an inferior clutch of some description, ill know for sure over the next couple of days when i clean out my garage and study how to do the engine drop etc. then proof will be in the bellhousing? pardon the bad pun

Thanks Turbocraft have added your online shop to my Bookmarks
__________________
Wheels
Last row 1977 3.0 930 260hp built, still reassembling
Row 1998 996 MK1 3.4 296hp new daily driver
Old 01-29-2014, 11:49 PM
  Pelican Parts Technical Article Directory    Reply With Quote #16 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 02:46 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2017 Pelican Parts LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.