TD42 injector cleaning - can it be done at home?

[mudnut]

Thanks mate. I've been reading the Nissan FSM and the injector seems pretty simple indeed. All the magic happens between the correct spring preload (say shims) and nozzle orifices being bare-metal-clean. I saw some videos where the guy was cleaning some (not TD42) injectors with small wire brushes and other rough tools and thinking it was too much of a shade tree repair, but then, the FSM shows the same tools (and the one with a manometer to build pressure and visualize spray pattern).

I don't have any friends with diesel shops but have some with petrol/ethanol shops. An ultrasonic cleaner is actually doable. Thanks for brainstorming here with me.

I have called a couple of pump/injector shops around here and they have everything for Bosh, Cat, MWM, Mercedes pumps and injectors but very few Zexel parts. They wouldn't even check the part-number, they unanimously said to bring'em the injectors and they would see what could be done. I don't personally like when things come to these terms, you know...

I've seen some of your work on your patrols. Maybe you could build your own injector pop tester. My quick search on google found a few interesting designs using small bottle jack to provide the required pressure.