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Guess the problem part 2
The second in the series of "test your troubleshooting skills"
Vehicle: 86 944 Mileage: 126000 miles Clutch (spring centered), Pressure plate, TO bearing, master and slave replaced 15000 miles ago. Flywheel meets specification and was refaced at the time of clutch replacement Car runs normally. Customer complains of clutch slipping at high RPM or at high torque. Smell of burnt clutch material. No other noises, but customer states that the car just doesn't have the "oompf" it used to. No further information AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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02-18-2003, 05:52 AM
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Would a spring centered clutch make a burning smell???
Could the torque tube be loose?? 944S Boyeee
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1989 928S4 Canadian Edition 75,000 klms |
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02-18-2003, 06:16 AM
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Was just up till 2 am last night helping a friend with a ford probe gt replace his clutch. His symptoms were similar at first, but became worse. His Throw Out bearing was failing first, losing power at high RPM's and when he punched it off the line. When you would engage the clutch at low RPM's without giving it good revs, the engine would try to stall out. The next thing to start occuring was the sound of parts falling off, he was driving the car alil over a week before it was repaired. After getting the clutch out, the surface of the clutch material was ok, the TO bearing was GONE and several 'fingers on the pressure plate broke away. New clutch is in, along with a new flywheel... he's very happy.
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02-18-2003, 06:18 AM
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Quote:
I'm curious here, too.....my limited knowledge points to the clutch springs being too weak?? (just don't laugh, ok?)
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83 944 N/A 5 sp. (mine) 90 Acura Integra auto (sons) 2000 Honda Odyssey EX auto (wife) 83 Suzuki LT 125 (4 wheeler) (wife) 92 Honda XR 80 (son) 97 Honda CR 125R (son) 98 Honda CR250R (MINE) 2000 Kawasaki KX 65 (son) 2003 Honda XR 50 (Son and daughter) |
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02-18-2003, 06:23 AM
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Torque tube: No noise or vibration indicated
TO bearing: on the right track, but they usually make noise or vibrate when they start to fail. Clutch Springs: Fine Car is daily driver, not tracked. Owner does know how to drive a manual transmission vehicle properly - driving habits are not indicative of abuse. AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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02-18-2003, 06:35 AM
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accidently replaced the 944 clutch disc with a 924 disc? hehe
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*Disclaimer: The person above is actually dumber than he appears. my web site Torque values maintainance and repairs lots of my rebuild pics weights and measurements '84 944 auto/ps/ac/cc '86 951 Providing ignorance one post at a time. |
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02-18-2003, 08:25 AM
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Broken clutch fork not letting the TOB move "back" properly.
Or a cat got caught in the bell housing.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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02-18-2003, 09:59 AM
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Small leak on the Slave Cylinder that's shooting oil on the disc.
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02-18-2003, 10:49 AM
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Quote:
My guess is leaking rear main. Moral: While you're in there, might as well do this...and this...oh, that too. 
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02-18-2003, 11:02 AM
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rear main seal
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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02-18-2003, 12:28 PM
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So many that are close, and yet so far away.
Hint: As I said before, Nothing is leaking AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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02-18-2003, 12:34 PM
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Okay...if the clutch is SLIPPING then there's not sufficient friction on the clutch disc. Since you say there's nothing leaking, and the clutch was replaced recently, then something is adjusted incorrectly with the clutch fork/pressure plate which is allowing the disc to slip.
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02-18-2003, 01:00 PM
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The pedal is not adjusted properly - too tight, not allowing clutch to release completely.
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Brad Tompkins Current: '86 951 Sunroof Delete - '89 951 - '83 944 Spec - '08 Cayenne Turbo Past: '88 924S Track - '86 944 16v - '87 951 - '87 951 - '88 951S - '08 Cayman S - '87 944 Track - '93 968 |
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02-18-2003, 01:07 PM
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OK it's not a cat.
A possum?
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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02-18-2003, 01:08 PM
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they put the rings/clips on the throw out bearing wrong or came loose.....
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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02-18-2003, 02:25 PM
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Quote:
5 minute repair, 12mm wrench and a 9mm wrench, fixed. AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information Last edited by AFJuvat; 02-18-2003 at 02:32 PM.. |
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02-18-2003, 02:25 PM
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Where are the clutch pedal adjustments made at [just for future reference and my curiousity]? Thanks.
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02-18-2003, 02:43 PM
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Who replaced the clutch and other items?
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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02-18-2003, 02:47 PM
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Guess thats why I am not a mechanic. I would have thought TO berring was not disengaging. It would have been partial right but by that time I have allready pulled the tranny.
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Roger Hall 81 924 N/A Some people are like Slinkies. Not really good for anything, but you still can't help but smile when you see one tumble down the stairs. |
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02-18-2003, 03:24 PM
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Actually, I replaced the clutch.
Owner adjusted the cylinder for a "stiffer" pedal. You make the adjustments at the clutch master cylinder - you screw the rod further in the pedal to loosen the pedal, and unscrew it to "tighten: it up. Should have a couple of MM free play be design. AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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02-18-2003, 04:00 PM
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85.5 Porsche 944 2.5L 8V 
1983 Porsche 944 2.5L
1983 Porsche 944 2.5L
'84 Porsche 944 2.5L
1983 Porsche 944 2.5 liter
1988 Porsche 944 2.5L 4 Cyl, 8 Vales
