924Board.org

[Sean_Ironstag]

So... I just replaced my clutch cable, that broke about a week back. Replaced it today.
Up until the old cable broke, the clutch seemed fine, shifted like a champ. But after replacing with the new cable, I can't even get it into first gear...
I press the clutch all the way in (it doesn't feel as if it has a lot of resistance), and try to shift, all it does is grind away! Ack! Well, it won't even let me try to put it in first, but if i try to reverse, it just grinds. It is as if the clutch isn't engaging or something...
Not sure exactly what is going on, because like i said, before the cable broke, from 35yrs of wear, it was working fine, I believe.
And it's not as if the cable is loose, and not pulling the clutch arm up, because it is. It pulls it all the way up when the clutch is pressed it. Hell, the cable is actually pretty tight.
Any help would be much appreciated, any help at all....
_________________
77 Porsche 928 Martini & Rossi Championship Edition

[BionicBalls]

clutch cable adjustment? adjust it out so that you can't push the pedal all the way to the floor and see if that disengages the clutch. Then adjust it back down from there.
_________________
1980 924 NA
1982 931

[!tom]

It's not adjusted correctly.

There is a spring on the release fork that will take up all the tension on the cable. This is what stops the cable ends from falling off.

Don't confuse this with the tension that the pressure plate puts on the cable.

Try this.

Engine off.

Car in gear.

Turn the key on.

If your car lurches forwards, then your clutch is out of adjustment or something is broken.

It is possible sometimes that the clutch disk sticks to the flywheel or pressure plate, so you get the symptoms you describe. This normally only happens after sitting for an extended period of time (like years). This is the procedure that rectifies that problem.
_________________
78 924 NA
5-lug

[Sean_Ironstag]

So, not having a professional knowledge of clutch systems, I am thoroughly perplexed, but am trying to figure it out. So, the clutch fork (arm) that the cable is connected to, when I initially installed it, it seemed to be all the way pulled up while it was in its resting position, hence why I figured the cable was really tight. In it's resting position it seemed pulled all the way up, then when I depressed the clutch, it didn't seem to pull it up anymore. So I took it off, adjusted it looser, to where at the resting position, it was no where near pulled all the way up, but when the pedal was depressed, it pulled it all the way up. So i figured it was on right, but it is still a no go. Same effect of the grinding gears.
If the car is off, and I put it in gear, then start it, yes it lurches forward.
Trying to wrap my brain around this, thanks for the help thus far, more would be much appreciated!
_________________
77 Porsche 928 Martini & Rossi Championship Edition

[Sean_Ironstag]

Got it fixed. It was a problem with the cable needing adjusting. I tightened it up quite a bit, now it works like a champ. It was throwing me off because it seemed really tight already, with the lever up like it was, but i suppose it wasnt tight enough.
_________________
77 Porsche 928 Martini & Rossi Championship Edition

[daniel]

make sure you havn't done it up so tight that the throw out bearing is constantly pushing on the pressure plate, if this is the case you will burn your clutch very quickly. Te test, push the pedal by hand, it should travel a small amount with a low force but then it should become very stiff. If you cant feel that low pressure part you are riding the clutch all the time.

Daniel
_________________
Over the top of skyline, total brake failure.... hit the wall at over 200 kp/h at the dipper, so anyone who has to brake for the esses is a pussy.
1977.5 Race Car, CAMS Group S Spec
1989 944 Cabriolet

[Sean_Ironstag]

Yeah, it still has a little bit of give, before the resistance kicks in.
_________________
77 Porsche 928 Martini & Rossi Championship Edition

[Sean_Ironstag]

Although, is it too tight if I can just push the shifter, without putting the clutch in, while driving, and it slides out of gear? Or is that normal?
I mean, I still have to depress the clutch to shift into a gear, but not out of a gear.
Thoughts?
_________________
77 Porsche 928 Martini & Rossi Championship Edition

[Joes924Racer]

A haynes mechanical book helps, Get one for a porsche 924 available at most auto parts parts stores it has a really good description of whats to be done, I know youll get help here and it should be available online even. Reading it will give you a full understanding of the mechanical clutch system.
_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

[DOCO]