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Lj clutch problems


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#1 _Lj253_

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Posted 25 November 2015 - 06:34 PM

Hey guys I have a problem with my clutch I think it's one of the masters I'm not sure , I had a little bit off clutch not much the car hasn't been driven in about 5 years so I bleed the clutch with new fluid and started it up and it went straight to the floor now I can't get anything at all anyone had this problem before or no the solution ?

Cheers

#2 Bigfella237

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Posted 25 November 2015 - 07:51 PM

First question, is it losing fluid and if so, is it leaking on the floor?

 

If there's a puddle under the car then the problem (or at least one of the problems) will likely be the slave cylinder.

 

If it's losing fluid but not leaking on the ground, it's likely coming out the back of the master cylinder and running down the inside of the firewall.

 

If it's not losing fluid but just won't bleed it may require the master to be removed and bench bled, didn't those early Torana conversions sit up top near the heater box on some funny angle?



#3 _Lj253_

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Posted 25 November 2015 - 07:59 PM

It sits just on that top shelf thing behind the brake booster it's on a little angle aswell,

There's no leaks anywhere not losing any fluid

By not bleeding do You mean it doesn't squirt out the nibble thing? Because fluid comes out but I just can't get any pressure on the clutch I get a little and still doesn't seem to engage once it's started

#4 rexy

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Posted 25 November 2015 - 08:17 PM

There's some air in there....

#5 _Lj253_

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Posted 25 November 2015 - 08:18 PM

That's what I thought but I keep bleeding it and nothing ?

#6 _Lj253_

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Posted 25 November 2015 - 08:34 PM

First question, is it losing fluid and if so, is it leaking on the floor?

If there's a puddle under the car then the problem (or at least one of the problems) will likely be the slave cylinder.

If it's losing fluid but not leaking on the ground, it's likely coming out the back of the master cylinder and running down the inside of the firewall.

If it's not losing fluid but just won't bleed it may require the master to be removed and bench bled, didn't those early Torana conversions sit up top near the heater box on some funny angle?

. What do U mean by bench bled??

#7 Bigfella237

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Posted 25 November 2015 - 08:40 PM

Sometimes with the master mounted in the car where it sits at an angle which traps an air pocket where it can't escape down the pipe, you need to remove it, clamp it level in a vice and bench bleed to get rid of the air.

 

The trick then is reinstalling it without letting any more air in!



#8 S pack

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Posted 25 November 2015 - 08:46 PM

Is the the clutch fork moving when you push the clutch pedal?

Was the clutch working 5 years ago?

 

If all you have done is bleed fresh fluid though the system and haven't disconnected and removed anything then there shouldn't be any air in the system.

 

Probably time to replace or reco the master cyl and the slave cylinder.



#9 _Lj253_

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Posted 25 November 2015 - 08:48 PM

I'm sorry how do you bench bleed it I havnt herd of it before

#10 Bigfella237

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Posted 25 November 2015 - 09:37 PM

Bench bleeding is just that, you remove the master cylinder from the car and mount it level on the bench using a vice or G-clamps or whatever.

 

Now connect a tube or pipe to the outlet(s) and run it/them to a suitable container, or back into the reservoir if there's no contaminants in the pipe, or even just hold your finger over the outlet if you don't mind having a mess to clean up!

 

Now fill the reservoir with fresh fluid and push the pushrod (or piston) in & out slowly using full strokes until all the air is out, all the while keeping the fluid level up.

 

Now you need to block off the outlet and reinstall it in the car without letting any air back in (or spilling fluid everywhere).

 

Working on cars is fun isn't it!


Edited by Bigfella237, 25 November 2015 - 09:38 PM.


#11 S pack

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Posted 25 November 2015 - 09:45 PM

Just re read your original post.

Yep my money is on the master cyl is stuffed.



#12 _Lj253_

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Posted 25 November 2015 - 09:50 PM

Is there any way I can test the master ?

#13 S pack

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Posted 25 November 2015 - 09:54 PM

Is there any way I can test the master ?

When you depress the clutch pedal is the slave cyl pushing/moving the clutch fork?


Edited by S pack, 25 November 2015 - 09:54 PM.


#14 gtrboyy

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Posted 26 November 2015 - 12:23 AM

If it's not leaking or seized then should just need a bench bleed.

 

Had same dellow v8 set up on mine...mongrel to do properly.Ended up taking it all out as one unit bled clutch master cylinder first then connected line up to slave cylinder & bled it again properly.

Then fitted it back onto car in one piece.



#15 rexy

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Posted 26 November 2015 - 09:09 AM

If it's not leaking or seized then should just need a bench bleed.
 
Had same dellow v8 set up on mine...mongrel to do properly.Ended up taking it all out as one unit bled clutch master cylinder first then connected line up to slave cylinder & bled it again properly.
Then fitted it back onto car in one piece.


Yes. This was my usual approach with the Hadfield system on the LX.

#16 _datpsi_

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Posted 26 November 2015 - 09:16 AM

I had the same dramas with mine mate. . Bleed whole system on bench and still couldn't get right. Borrowed a mates pneumatic bleeding tool and 2 mins sucking fluid through all sorted




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