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Subject:Bleeding the clutch.
From:John Rodgers
Date:Sun, 9 Mar 2003 09:03:51 -0600

OK, guys, (and ladies)

I have installed the new clutch master and I have filled the fluid
tank.  I have applied Stan Wilders idea to open the bolt at the bottom
of the cylinder (its a hollow bold/gland nut type arrangement)  and
allowed the air to bleed out and fluid to drip out, hopefully filling
the clutch fluid line, and the cylinder. I have closed the gland nut
connection and stepped on the pedal. NADA! Absolutely no pedal.

So now what? The Bently says pressure bleed from the slave cylinder.
Some list members have said use a pressure bleeder. OK.

But I need to understand how that clutch hydraulics work beyond the fact
that you push the pedal which pushed the fluid which pushes the clutch
actuating arm on the clutch housing.

Are there return springs in the master and slave cylinders. Or does the
spring pressure of the clutch pressing against the clutch actuating arm
apply pressure backward against the piston in the slave cylinder which
in turn pushing fluid backward to the clutch master which pushes the
clutch master piston back up to contact the clutch pedal plunger rod?????

Is this why pressure bleeding from the slave cylinder is required? To
simulate the clutch spring return pressure to drive the fluid back up
through the system? I'm just trying to understand it, and Bentleys is
worthless in this regard.

Finally, isn't there some way to pressure bleed the thing without having
to go out and buy an expensive pressure bleeder?? Or is there some
simple little thing like a Mighty Vac that is applied to brake bleeding,
but is instead usable for clutch bleeding?

Really would appreciate some input on this one. I'm old, I'm slow, and
my back hurts. I am dreading having to crawl underneath to do this
bleeding but I will, but I only want to it once, so I want to be sure I
am armed with understanding and the right tools for the job.

Thanks,

John Rodgers
88 GL Driver