On the 1. 6 you don't need to remove the rod from the pedal. Just undo the cylinder and it will come away.
Think the 2.2 is the same
That's not right Terry, sorry. The rod is held in to the clutch master cylinder by the mushroom shape at the end of the rod, to prevent it dropping out. If you can remove it without unhooking it, it wasn't fastened in properly, in the first place. The 1.6 and 2.2 are the same. The only difference between the 1.6 and 2.2 is the bore of the 2.2 clutch master cylinder is slightly larger than that in the 1.6 model. To hook or unhook the rod from the master cylinder you have to have the rod at a high angle to the cylinder and you can't do that with it attached to the pedal. See my 8 second Quicktime clip of inserting the rod. (it appears the movie clip is too big to attach here, so you'll have to view/download it from my website)
To remove the clutch master cylinder, you remove the split pin where the rod is attached to the pedal, remove the washer and end of the rod from the pedal pivot, then remove the flare nut and flexible hose, followed by the two nuts securing the master cylinder to the bulkhead, then you can remove the master cylinder, to clean and overhaul it.
It is not uncommon for the clutch master cylinder to start leaking when a Murena has been unused for some time, then starts to be used again.
Whilst on my technical articles webpage for the movie clip, you should also check the article for the special procedure required for removing and refitting the flexible pipe to the master cylinder.
Roy