At long last I am hoping to get the engine and gearbox back in CLM. I have been contemplating the water inlet/drain tap for some time on the bench and dislike it every time I look at it. It looks as though it was originally used on another model as there is an additional piece of tube tacked on to the vertical part. This has been blanked off - I won't say how!
Looking at Mike's photograph of the offside of the engine when he removed it, I can see that his casting is aluminium - mine is (?) bronze - and his looks similar to the ones currently listed at Cavalitto. Those are threaded internally - ?to take the drain tap casting. I can't see a ready way of detaching the drain tap casting from the body of the inlet on mine.
Quite apart from anything else, the operating arm for the drain tap is cleverly designed so that every time you check the dipstick, it has a tendency to knock the tap arm with obvious potential results.
Any ideas gratefully received - a certain chain driven car is nearing the time when it will (I hope) hit the road and I can revert to matters Lancia after far too long.
If I am clever enough, I will attach Mike's photo - hope he doesn't mind and you can see the part I am talking about.