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HELP! My car is broken

JH32

By JH32,
in Engines & Forced Induction

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JH32 Grand Master

JH32

Posted
Posted

Does anyone know whats happened to my car :

today I was driving and it started to get hard to select gears ... until the point where I couldnt get it into any gear at all.

As the car has a heavy duty clutch, the pedal is normally very stiff to push in, but now there is hardly any resistance at all.

The only way I could select first when the car was stopped was to turn the car off, select 1st (the gearbox was free to move with the engine off) and then turn the key. The car would bounce forward and then start. When driving I could get into gears but I had to really force it in.

So basically the clutch is constantly engaged and when I stop the car stalls. What the hell is going on?? How do I fix this???

I've checked the fluid levels and they seem fine. :confused:

I'm stuck and it's xmas day and nowhere is open and this is ruining my day ;)

cheers.

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JH32 Grand Master

JH32

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I got the RAC out and the guy thought that maybe the clutch master cylinder might be stuffed? Either that or the slave cylinder?

Either way it seems as though the problem is hydraulics as I can change gears when the car is off.

This is very annoying. ;)

Guess I'll hafta get someone to look at it on Friday then.

Merli Grand Master

Merli

Posted
Posted

That's exactly what happened to my clutch a few weeks ago.

I had snapped the ball joint on my clutch pivot fork. What this effectively did, was move the friction point to a point further than you could access by pushing the clutch pedal in, so in effect, you couldn't disengage the clutch by pushing the pedal anymore.

JH32 Grand Master

JH32

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  • Author
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I have checked the slave cylinder and the little piston on that moves when you push the clutch in, so apparently that means the problem is inside the clutch/gearbox.

I spoke to gtrken and he said that I could have done something similar like break one of the fingers. I'll get it checked out on Monday when I can finally get the car to a workshop.

Of course this has to happen now when all the shops are shut for christmas/NY!!!

JH32 Grand Master

JH32

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Is there somewhere else there could be fluid other than in the clutch master cylinder?

Also when I press the clutch the slave cylinder moves in and out.

Does this mean I still have pressure within the hydraulic lines?

Steve Grand Master

Steve

Posted
Posted

Dude, it does sound like there are problems with your clutch pivot point, or the mount for the slave cylinder, esp if it is moving - this is 'old school', but in my younger days the slave cylinder was usually fixed and pushed against a fulcrum which was attached to a pivot point. If you are not leaking fluid - it probably aint a leak, and you would probably know if it was.

I have heard that heavy clutches can do a bit of damage to the pivot point on skylines, specifically if the clamp pressure reaches or exceeds 3000lb - but that is hear say.

JH32 Grand Master

JH32

Posted
  • Author
Posted
Originally posted by Steve

If you can get the damage welded, not too bad.  Otherwise you may have to replace the bell housing - don't know how much one of those would cost.

****.

how the hell could this have happened?

i was driving like a grandma at the time!

Cubes Grand Master

Cubes

Posted
Posted

The stress from simply pushing the clutch down on the hard clutch.

I had a VS V8 Manual Commodore previously which had a very heavy duty clutch. (At traffic lights your leg would shake)

That stuffed the pedal box and caused the pedal to click and clunk.

Put a new lighter clutch in (standard) and it was stuffed.

I was told I had to replace the pedal box and pin or some thing.

SOLD THE CAR!

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