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resident samsquamch
Join Date: Oct 2005
Location: Cooterville, Cackalacky
Posts: 6,815
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John, I might have a spare pilot bearing (brand new), I will look for it. In addition, I have the original pressure plate and throw out bearing out of my '87...with about 40K if you need them for any reason. Not sure of the compatability with a '79. You know where to find me...
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-jeff back in the saddle: '95 993 - just another black C2 *SOLD*: '87 930 GP White - heroin would have been a cheaper addiction... "Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP  )
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02-22-2008, 04:51 PM
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John, I am sorry you are having trouble with the clutch, it worked like a charm for me in my 87 with 379lb/ft of torque at the time. I have a pedal cluster if you need one.
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02-22-2008, 09:35 PM
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Registered User
Join Date: Oct 2006
Location: Raleigh, NC
Posts: 760
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The above two post just shows the camaraderie within Pelican! Thanks too you both. I think I have it figured out... at least I hope. I finally had the time to sit back, and trace my steps from the rebuild. I believe I torqued the clutch down too much, which would explain why at hotter temps the clutch got worse(expansion). that would also explain why the outer ridge of the flywheel was so worn down (over torqued bolts adding pressure on the outside). I will also clean and check the throwout bearing, and take a wizzer to the flywheel.
If that doesn't work, I have delayed the inevitable. Its time to replace the flywheel, and all other clutch parts that were used as a summer daily driver for the past 29 years. I will let you all know the outcome, after I get my WUR back from Leask  P.S. I got the chance to check everything on the rest of the engine, and it is within spec, and handled 1K post rebuild miles like a champ!
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John A. 1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.) 05 Boxster S: For the Track. 06 Dodge Ram 2500 Power Wagon: Tow Vehicle Last edited by AngM018; 02-22-2008 at 11:23 PM.. |
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02-22-2008, 11:00 PM
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I'd check the flywheel and clutch plate surfaces for warping now. It looks like there was some overheating/galling on the plates, and if you overtorques with the heat generated you probably have some warpage. It's pretty cheap to have them surfaced and it may save you another pull (as fun as that is..
 )
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Chris ---------------------------------------------- 2001 GT3 Cup - "Pepin" 1999 Spec Miata 1996 993 RS Replica 2010 Harley “48” 2013 Honda 250 CRF 1971 Norton 750 Commando Alcon Brake Kits |
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02-23-2008, 05:56 AM
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Registered User
Join Date: Oct 2006
Location: Raleigh, NC
Posts: 760
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Thanks Chris. I am going to take everything down to the local machine shop, and have everything measured just to be on the safe side.
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John A. 1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.) 05 Boxster S: For the Track. 06 Dodge Ram 2500 Power Wagon: Tow Vehicle |
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02-23-2008, 07:31 AM
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cycling has-been
Join Date: Sep 2004
Location: Jersey Shore
Posts: 6,525
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...from the workshop manual: clutch bolts torque 2.0-2.5 mkg, (11-18.5 ft lbs)
...and from the pocket spec book 2.0-2.5 kpm, 10-25 Nm hopes this helps Bill K
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73 911T MFI, 76 912E, 77 Turbo Carrera |
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02-23-2008, 09:17 AM
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resident samsquamch
Join Date: Oct 2005
Location: Cooterville, Cackalacky
Posts: 6,815
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Yep...I torqued mine to 18 ft lbs.
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-jeff back in the saddle: '95 993 - just another black C2 *SOLD*: '87 930 GP White - heroin would have been a cheaper addiction... "Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP )
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02-23-2008, 11:08 AM
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930s rule the wasteland
Join Date: Dec 2006
Location: Spotsylvania ,Virginia
Posts: 1,213
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John I have a excellent used flywheel If things dont work out at the machine shop. When i did my clutch i couldnt believe how small the torque spec was, the overtorque sounds about right.
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1980 930 Turbo 1993 Corrado 1983 944 1984 944 2001 VW golf TDI |
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02-23-2008, 04:37 PM
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Quote:
Of all the torque specs on the 911, the flywheel bolts and head-studs always feel "too low" for me. I do what Stuttgart says, but it just doesn't feel right.
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Chris ---------------------------------------------- 2001 GT3 Cup - "Pepin" 1999 Spec Miata 1996 993 RS Replica 2010 Harley “48” 2013 Honda 250 CRF 1971 Norton 750 Commando Alcon Brake Kits |
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02-23-2008, 08:41 PM
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A fellow Pelacanite
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I'm surprised at those tq's too.
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG. Fitting - New service kit. Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head. 1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods. Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit. http://www.danasoft.com/sig/Iamnotanumber.jpg |
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02-24-2008, 04:14 AM
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Registered User
Join Date: Oct 2006
Location: Raleigh, NC
Posts: 760
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Thanks for the torque specs guys. I know I torqued it down a whole lot more than that. I have no idea where I got the torque number from. Must of misread the manuals... I am just glad my one mistake of the rebuild wasnt anything more serious.
H20cooled7: Thank you, and I will let you know if I need a replacement.
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John A. 1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.) 05 Boxster S: For the Track. 06 Dodge Ram 2500 Power Wagon: Tow Vehicle |
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02-24-2008, 02:32 PM
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1970 Porsche 911 S 
