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Up side down clutch slave cylinder


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HI, recently bled my brakes and clutch on a 5 speed.  I was trying to address an issue where the clutch would slowly reengage sometimes with the pedal depressed-like when waiting at a stopping light for example. I used a power bleeder, and pressed fluid from the reservoir down. through the slave, I cycled the pedal up and down a few times as well. I didn't crack the line between master and slave. 

 

After striking out and further digging, I came accross several threads discussing 5 speed conversions and slave cylinder orientations. The PO did the 5 speed conversion on my car.  

 

My slave bleed port is facing upwards towards the transmission tunnel, which made it a PIA to get the bleed tube on and to open for bleeding. 


First Question: I have gathered that the correct position  of slave bleeder is facing down, not up-can someone confirm?

Second Question: is there any way to fully bleed the system with this orientation-would pushing fluid through the slave and master into the resevoir be more effective, or do I need to remove and reorient the slave

 

thanks in advance!

 

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7 minutes ago, arban79 said:

First Question: I have gathered that the correct position  of slave bleeder is facing down, not up-can someone confirm?

 

Yes.

 

7 minutes ago, arban79 said:

Second Question: is there any way to fully bleed the system with this orientation-would pushing fluid through the slave and master into the reservoir be more effective?

 

No.

 

7 minutes ago, arban79 said:

Third Question: do I need to remove and reorient the slave?

 

Yes.

Edited by '76mintgrün'02
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The technique I’ve used for years is to crack the bleeder , push on your hose, immerse the other end in an inch of good clean brake fluid and pump your pedal slowly while  watching the level in the reservoir. Tighten the bleeder and check for proper operation. Works every time I’ve tried it. Good practice says the bleeder valve is supposed to be oriented upwards at the highest level in the cylinder, but I bled mine with it assembled and facing down(because I was lazy) and it still operates as it’s supposed to. I suspect that there is still some air in it but it doesn’t affect the operation of the clutch.

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Mintgrun nailed it...

 

There is an internal passage built into the slave cylinder that is designed to allow full bleeding with the bleed valve nipple pointing DOWN.

 

If the bleed nipple is pointing up, you are working against yourself. 

 

See this post for more thoughts: 

Edited by rms_sandiego
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