Peterism03,
I share your pain! I tried last weekend to change out the clutch MC on my 91 Corolla wagon and gave up just before I got out the crow bars and 10 lb hammers.
Problem #1: can't get a wrench on the fluid line flange nut ... well, actually I can get a stubby 10mm on it, I just can't get it to turn and the corners were starting to round off
Problem #2: The power brake booster reservoir covers the lower flange so that you can't simply remove the master cylinder. Looks like "brute force" or loosening the brake master cylinder/booster assembly enough to get sufficient wiggle room to remove the clutch MC is required.
Problem #3: All the OEM replacement cylinders I've seen have the fluid line on the side, instead of the top, of the MC; thus requiring a new line to be installed.
My latest hare-brained plan is to take my Dremel and use a cut-off wheel to slice off the original mounting bolts at the inside of the firewall so I can get the old one out without dropping out the brake MC; then cut off the old pressure line just above the flange nut - then splice in a new flange end so it can mount at the "new" off-by-90-degrees OEM cylinder; then to mount the new OEM cylinder I'll position it first and then screw in the mounting bolts from the inside of the firewall ... IF I can get in place - looks like the clutch push rod/clevis assembly are "kept" in the MC and non-removable.
All in all, this is one really poor design for R&R of a simple clutch MC.
I registered on this forum just to post my frustration and to hope that some Toyota techie can help us both out.
Tell me about your "brute force" method for removing the old one. Was it fun? Did you get to swear a lot?
-John