Clutch arm, helper spring, adjustment WTF
 

SO noticed the other day that my clutch was slipping a little the other day.

Low miles on the clutch -

So jacked up the car and checked out the adjustment - and I think I can reason how this works - but in practice - it does not seem to be working correctly

http://forums.pelicanparts.com/uploa...1326860264.jpg

Clutch clevis pin, adjusted all the way in.

Helper spring brings the clutch arm forward

even if no tension is on the clutch cable - the helper spring tries to compress the clutch

http://forums.pelicanparts.com/uploa...1326860498.jpg

If I hold the helper spring out - I can adjust - what I consider normally - but as soon as I remove my finger from behind the helper spring = it rotates and starts applying pressure to the clutch arm

http://forums.pelicanparts.com/uploa...1326860587.jpg

Here's the adjustment on the clutch arm stop - as you can see - no 1.2mm

http://forums.pelicanparts.com/uploa...1326860643.jpg

Really - WTH? the single arm that I had on my 1974 was so much more simple. what am I doing wrong?

What's wrong is your omega spring is in the wrong orientation, me thinks. Do a search and you will find a picture of how it is supposed to fit. That looks wrong.

check this thread out. There is a picture of how it is supposed to sit

http://forums.pelicanparts.com/porsche-911-technical-forum/640656-clutch-adjustment-pedal-question.html

Right position
http://forums.pelicanparts.com/uploa...1326860264.jpg

http://forums.pelicanparts.com/uploa...1321712390.jpg

ALthough my spring is a little further "inboard"

Omega spring orientation.........
 

Jeremy,

The orientation of the omega spring in your picture (top) is at 'relax' position (no tension). After you hooked up the clutch cable to the clutch release lever, the helper spring (omega) is pushed rearward to get the helper spring apply pressure to the lever. The lower picture shows the correct orientation or position of the omega helper in normal operating condition. Compare yours to the other transmission set-up and you'll notice the difference between the two settings.

Like you mentioned, the omega spring is a little inboard in your case. It got to come out. You need to push the clutch release lever rearward and adjust the clearance with the clutch positioning lever (small arm with spring).

Tony

Tony is giving good advice. First remove the cable completly, move the large lever back all the way, the omega spring should push it back near the oil line, and adjust the gap at the screw to 1.2mm. Re connect the cable and adjust to 1mm. Then measure the travel when you step on the clutch pedal. It should move 25mm. If not adjust the travel using the metal plate by the clutch pedal on the drivers floor board.
The Omega spring does 2 things, when fully back it pulls on the clutch cable, and as it moves forward it reverses its action and begins to push on the clutch to assist your foot pressure in releasing the clutch. In it's current position it is in the pushing position, assisting in releasing the clutch, causing your slippage. If it has been this way for a while it could have caused wear on your clutch plate.
It is a little more work to set up then the older style, but when done properly it works better than the old style.

there are instructions you can find in a search on how to get the omega spring in the correct orientation. basically involves gently prying and it snaps into place in the blink of an eye.

Thanks - the clutch arm is hitting the "stop" at the end of the travel - but the other pictures sure make it look like the arm is more extended

I would try removing both arms and making sure the large arm pivots on the shaft. When I first got my transmission the long arm was stuck to the shaft. I had to pry it off, then clean and grease it.

I think I got it - it was a spline adjusted too far in - So the clutch did not have enough travel.

I backed everything off - greased it up - lengthened the cable and the cable adjustment - and put it back together. Actually have my clutch cable return to the proper height now.