Arno Leopard Marine flush valve?

Any boat mfg support?
Can you offer a picture that has the whole assembly?

I don't think they make that stuff anymore, but the manufacturer is (was) definitely this one.

I thought to check my old files, and found one of their catalogues.
I made an abstract of the toilet components section, which you may find of some interest.
Though it's 20+ years old stuff, and as I said I'm not sure they are still in business with these products, though they were rather popular back in the days, particularly in big-ish yachts...

Outstanding work brother mapism.
Old files do come handy.

Pending where the boat is, Could there be an easy EU or US component replacement?

U R welcome.
If nothing else, being Italian and having grey hairs does help, when it comes to oldish Italian boats...

Oh, Welcome to Yacht Forums.

We have brothers and sisters all over the world.
Brother mapism has been a great resource for many years.
If you did not notice, he is in Sardinia.
At least he has hair to brag about albeit it is grey.

Keep us up on your progress.
Feel free to open a new thread and tell us about your ship.
Lots of pictures, We like to watch..

The more post/topics on Arno Leopard and Sanguinet, the more chances that another owner/captain/manager may offer some info or thoughts.

Chow
Ralph

Turning white, actually.
But yes, I still have some, so I guess I can't complain...

Do yourself a favor and install a raritan head system in place of that antiquated Italian POS, for the probably the same money as the replacement pump, shipping, and customs to get it here.

Yes, both headhunter and raritan make toilets that only use water pressure to flush.

Amen to that.

Just in case you don't know his attitude yet, Capt J is calling POS what you've got (before even knowing what the problem was!) simply because it comes from Italy. I'm actually surprised that he didn't extend that to your whole boat... Sour grapes, I believe is the English expression for that!
I mean, we are talking of a component that after 27 years of service on a boat just developed a small drip - and is still working anyhow, as I understand.
It takes some nerve to call that a POS!

BTW, since you are now explaining better what the problem is, I think all that valve body is plastic, isn't it?
If so, chances are that just some epoxy resin along the crack could make it last another quarter of a century...

No, it's because I've been down this road many times before. And, almost every time I've tried to repair old junk it's bitten me in the ass. It's because by the time you spend a week trying to track down the part, deal with the language barrier, deal with the exhorbinent air freight, customs fees, exchange rate. You could have installed a brand new toilet 4 weeks earlier, for probably less money, and IF you need a part for it, you can buy it, the same day. I wouldn't fix ANY 36 year old toilet on any boat. The boat is in a remote part of the U.S. for a yacht, and trying to find this part well, you tracked down a catalog. But an internet search shows nothing as far as a dealer or the part itself for sale or any of that. It comes from experience.

I appreciate that if you install something on a boat that needs fixing every other season, parts availability is important.

But what exactly does that have to see with labelling gratuitously as an "italian POS" something you know nothing about?
You'll never hear myself pretending to know-it-all about anything, but at least I've put my arse on Sanguineti bowls more times than I can remember...

And like brothers, these two squabble a lot.
However, there are some good thoughts and ideas embedded in the bickering,,,, sometimes..

It's a POS because its a 25 year old system. I am half Italian, I can call Italian parts POS if I feel like it, and some rightfully are. ANY 25 year old toilet bowl is going to have the porcelein worn off, unless it's been in a museum and their technology has been far surpassed. None of their dealers even sell their toilet parts anymore. They sell their windlasses and deck chairs. US made 25 year old Galley Maid toilets are POS' also, yet people spend just as much on a rebuilt toilet pump for them as they could replace the entire toilet for, and then they screw up over and over again. Carry on.

When you find where you can buy this toilet flush valve, and the price, and a vendor willing to ship to the U.S. and associated cost, let us know. Because I don't see any vendors of it anywhere online, and only the manufacturer and no prices listed.

Of course you can - and you often do, in fact.
That's precisely what I wanted to make the OP aware of with my post you quoted: you have this habit of dismissing parts/boats/whatever if and when you feel like it, regardless of whether they really are.
And quite often, knowing nothing at all about them - as in this case.

As an aside, ref. your last question, my very first comment in this thread (post #3) was "I don't think they make that stuff anymore".
And that was well before you jumped in for your usual show.
It takes a really twisted logic/attitude to ask me now where to buy this thing!