Clutch Bleed

Clutch Bleed

Joined: September 1st, 2008, 4:15 am

September 1st, 2008, 4:28 am #1

Greetings!

Im new to the group and in Queensland, Australia. I have an 80 X which I have been working on over the last four years. I have rebuilt the pedal box and installed new master cylinders but Im not sure about bleeding the clutch. Is there any special procedure to use to get the air out. I took the car to a mechanic to do the job, but there still seems to be air in the system. Bleeding the brakes was a breeze, I have a mighty vac but doesnt seem to help. Also, with the rod on the slave cylinder, is there some particular setting when adjusting the rod so that the clutch actuating lever is at the correct tension. Thanks for any help.

Regards,

Errol
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Joined: December 21st, 2004, 3:04 am

September 1st, 2008, 5:42 am #2


... and answered alot, but I don't think the process is in "Best Of" and the search engine is poor...

There are several ways to skin this cat... I'm gonna just tell ya what I use and let the others tell ya about pressure and vacuum systems.

1.  If you just installed a new clutch MASTER.  SLIGHTLY loosen the line at the master and pump the pedal with your hand... pushing down and PULLING it back up. Place plenty of rags under it... and when it PUSHES fairly clear of air bubbles, tighten the fitting on the DOWN stroke.

2.  Now have someone assist by using their HAND to push and pull the pedal, while you go to the slave.

3. At the BANJO BOLT on the flex line at the slave cylinder, loosen it and then snug it up again.  Have your helper pump three times and hold it down... then loosen and snug it up allowing brief bursts of air to escape and then snug it up.  Have your helper do this several times until all the air is out.

4.  Now do the same with the bleed valve (nipple) itself on the slave cylinder...  I find that I can usually get all the air out in about 8 cycles total, three on the flex line and three or four on the nipple.

5.  Your clutch arm "throw" should be about 1 1/4" inches MINIMUM.

Good luck, let us know how ya did...


My best,



Tony
Black Tooth and me... since 1983!
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ausfiat
ausfiat

September 1st, 2008, 6:33 am #3

Thanks Tony, valuable info. I'll give it a go next weekend.

Cheers

Errol
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Joined: July 20th, 2004, 6:25 am

September 1st, 2008, 7:29 am #4

Greetings!

Im new to the group and in Queensland, Australia. I have an 80 X which I have been working on over the last four years. I have rebuilt the pedal box and installed new master cylinders but Im not sure about bleeding the clutch. Is there any special procedure to use to get the air out. I took the car to a mechanic to do the job, but there still seems to be air in the system. Bleeding the brakes was a breeze, I have a mighty vac but doesnt seem to help. Also, with the rod on the slave cylinder, is there some particular setting when adjusting the rod so that the clutch actuating lever is at the correct tension. Thanks for any help.

Regards,

Errol
Errol,

Whereabouts are you? I'm at Samford.

Regards,

Brian

Brisbane, Australia
1979 1300
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Joined: September 1st, 2008, 4:15 am

September 3rd, 2008, 11:16 pm #5

In Emerald up in the central highlands. Im the only Fiat guy around with Bianchina and 850s but I really like my X1/9. It came from Sydney and was pretty well thrashed from all the city driving!
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