Bill,
I found that suction does not work on my Sprite. I think that you are
correct. The suction pulls air in from somewhere, possibly the slave
cylinders. I found that even the pedal pumping method did not work once I'd
used the suction. The final solution (final in that it worked) was to build
an EZ Bleed so that I could force fluid through with pressure. I followed
the instructions at:
http://www.mgcars.org.uk/cambs.mgoc/tips.htm
It took all of 15 minutes to build the thing and only about 5 minutes per
slave. DO NOT OVER-PRESSURIZE the fluid bottle. My first one was made of
cheap plastic and exploded fluid all over the car. My wife and I have never
moved so quickly and in unison towards a common goal (well, with our
clothes on anyway) as when we were wiping that stuff off the wing paint.
The second iteration worked great. Nothing would bleed the clutch slave
cylinder well enough to give me good action until I used the home-made EZ
BLEED on it.
Good luck,
Jeff
>I also replaced the brake/clutch fluid. To do this I got out the trusty
>MityVac and vacuumed out the master cylinder. I then filled the mc with
>fresh Castrol LMA and proceeded to use the MityVac to suck fluid out of
>each slave cylinder until they ran clear. I have done this procedure in
>the past on my modern machinery and it has been very successful. The first
>thing that I noticed was that a lot of suction was required to get any
>fluid out. I was also getting an air leak around the bleeders. Using a
>tip from this list, I got out the Teflon pipe tape and sealed the bleeder
>into the cylinder. I also checked to make sure that the bleeder was clear.
> It still took a lot of vaccuum to move the fluid but I wasn't getting as
>much air around the bleeder so I kept going, adding fluid to the mc as
>required. After doing the clutch, the two back, and the left front, I went
>to pum up the brakes to return the front disk to position in case the
>suction pulled the pistons back. The pedal sand to the floor then pumped
>up in a couple more strokes. Air in the system. I had never let the MC
>get low so it must have come from somewhere.
=
_____________________________________________________MV
Jeffrey H. Boatright, PhD
Senior Editor, Molecular Vision
http://www.emory.edu/molvis
jboatri@emory.edu
(404) 778-4113 Phone
(404) 778-2231 FAX
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