Technical Clutch woes (hydraulics) - just wanted to check symptoms

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Technical Clutch woes (hydraulics) - just wanted to check symptoms

stevesteve

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Jul 23, 2007
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Morning all, just wanted to check this with you:
- Stopped at junction.
- Clutch pedal down with a bang.
- Son pumped clutch - spray of fluid from on top of clutch housing.

Battery and plate out (some swearing involved) piston shot out of slave cylinder. Whole slave cylinder replaced.

No other leaks of fluid (that I can see! No drips anywhere).

I now cannot get any pressure in the system. I did open the slave cylinder and pump until it looked like the bubbles stopped but still no pressure (pedal does return).

Does this just sound like I need to follow glowplug's timely guide and do a full bleed with a kit or is there something else going on here?

Cheers
Steve
(Hands oily, a bit sweary - normal for car jobs!)
 
Actually I wrote that guide quite some time back, Bikedoc has simply brought it to the surface. You will definitely need to bleed it. Follow my guide to the letter and you should be OK. The systems are a right pain due to all the high spots. Whatever you do make sure the reservoir stays full
 
Righty-Ho...

Of to buy a bleed kit before the bleedin' shop closes then ;-)

Thanks glowplug!
Steve
 
Before you get into all of that, clamp a breaker bar or similar to the clutch release arm that sprouts out of the bell housing and check that you can actually disengage the clutch. It would be worth establishing exactly WHY the slave cylinder shot apart.
 
Agreed that is a very good point. The clucth fork actuating arm is known for seizing up. Spraying a good deal of WD40 under the actuating arm where the rod goes into the gearbox frees this up.
 
Ok that's a good shout chaps.

It seems to be moving ok. I had to bleed it three times to get the air out of the system. Just about to give it a run about for some diesel before the week starts.

Cheers
Steve
 
The piston coming out of the cylinder is not something I've heard of before. I thought there's a retaining circlip in the cylinder bore? Anyway, to come out it must have been allowed to over-travel. Was the slave cylinder correctly mounted on the gearbox? Has the clutch release bearing collapsed (very common)? Is the slave pushrod bent? If you've got a cylinder with a crappy plastic pushrod - and even genuine Fiat ones have that - and the clutch fork jammed solid I suppose it's possible the rod could bend
 
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