The last time I cleaned the converter, right after I finished the Diamine Green Black that was in it, it literally took me 15 minutes of flushing the Z24 over and over to realize that I wasn't going anywhere. As soon as I thought it was clean enough and shook it, out flew some more greenish water.
I decided that I had enough. I searched the internet for how to disassemble the Lamy Z24 converter and the only thing I could come up with was people assuring other people that it could be done, that they themselves had done it easily. Well, I tried in the past and failed. It seemed to me back then that the damn parts which make up the converter are fused together.
This time I used a different method and succeeded. What follows is a video (my first production video ever) of the procedure, as well as a written explanation with photos. Please excuse the amateurish quality of the video as well as my superglue-covered fingers. Also, please subscribe to my newly-minted Youtube channel if you wish, in the right sidebar.
What you're gonna need for the Z24 disassembly procedure is quite simple: a thin rod preferably made from plastic or wood, which can fit inside the converter, and your fingernails.
I used the plastic piston from an insulin syringe. I have a lot of them lying around, not because I'm diabetic but because I bought a pack of 100 a few years ago so I could use them to fill my cartridges, converters and fountain pens with ink. For this purpose the piston works wonderfully.
The first thing you want to do is to remove the black metal ring at the twisty knob end. This is easily removed by pulling outward with your fingers, perhaps twisting it a little if it feels stiff.
Now comes the tricky part. Underneath the metal ring you will notice that the red knob is mated to the black plastic piston assembly. This black part is actually the one that holds the piston inside the converter, and joins the knob and the piston. In the past I've tried pulling the assembly out with my fingers. Though my grip is pretty strong, I've never managed. The black part can be twisted but that doesn't help to extract it.
So I had to figure out a different way. This is where your nails come into action. Alternatively, you can use some sort of plastic shim, but I prefer the nails. I wouldn't recommend metal (like a knife blade for instance) because it will most likely damage the soft plastic of the converter.
You need to wedge your nail between the black part and the transparent converter body. Since the two parts seem melded together, it might help to bend the converter a little until a gap is formed between the two. At this point you should be able to slide your fingernail inside the gap.
You will now perform 2 simultaneous motions. First, you slide your fingernail along the gap, while rotating the black assembly (remember, this one is rather stiff to rotate). At the same time you pull outward with the other hand until the whole thing pops out.
There you go, the piston assembly has been removed from the transparent converter body. You can now unscrew the piston for cleaning but don't tell me I should have also detached the black assembly from the red knob because that would be pointless. Ink doesn't get between those parts anyway.
What remains is the small black ring/washer/valve/thing at the business end of the converter. This little part always bothered me the most because ink likes to accumulate between it and the walls of the converter, thus making it nigh impossible to wash the converter thoroughly. Well, not anymore buddy. Time to use the syringe piston.
Grab the syringe piston or whatever thin rod you have and stick it inside the converter. I would stay away from metal rods because, again, they could damage the soft plastic.
Brace the rod against the hard surface of a table and press down hard on the converter while pushing on the black washer thing until it pops out. Keep a finger or two on the opening because the sudden release could shoot it through the ceiling.
And there you have it. Taking the Lamy Z24 converter apart turns out to be a pretty simple procedure, but one which has eluded me for years. Now I'm hoping my method will bring relief to thousands of Lamy aficionados plagued by this very same conundrum.
I hope you have enjoyed this how-to and if you have a different method of doing this I'd love to hear about it in the comments.