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Well, I got the job done the day after I posted. Since then, life - and a dead PC - yet again - has just got in the way!
The master cylinder was a relatively easy task, though I was a bit concerned about pulling the 22-year old plastic reservoir off. Rather than take it off in situ, I elected to take off the whole assembly and then mount it in a vice.
Gentle side-to-side rocking, having first broken the seal between the rubber grommets and the base of the reservoir with a sharpened hacksaw blade (a craft knife blade would have done as well), combined with steady upwards pull, soon had it free.
The only awkward bit was the pipe union at the right side, very close up against the inner wing. I imagine this simply isn't a problem on a LHD car. The clearance is so tight that I couldn't use a standard flare nut wrench and so I had to resort to a stubby 10mm open-ender of dubious parentage that has lurked in the bottom of my toolbox for more years than I care to remember.
It was wonderful having the use of a 4-post lift, though I wasted some time getting it set up (it's about 15 years since I last used one and I needed to sort out the right packing pieces and support points so I could use the wheel-free without damaging the car).
Also handy to have the use of a professional quality pressure bleeder as my ancient Gunsons Eeezibleed was fit only for the bin despite being stored carefully for many years. Even better to have a colleague on hand who had used it before....
Having eventually remembered that there are two bleed nipples on each of the 4-pot front calipers (!) I had a much, much better pedal. The next day I took the car out and exercised the brakes very firmly - I'm sure that this helps avoid caliper seizure on a garage queen like mine.
Regards to all
Mfiver
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