240Z: Dropped of hatch and Turn signal switch part II

Yeah it’s not like i’ve been not doing anything on the car lately but im corrently working on what is probably the most complicated assembly on the car and it needs a lot of time to figure out how to handle the adventerous electronis design of the Niles Electric company from 45 years ago. As you might know I’m a senior electronics engineer in my daily job so it’s kinda fun and i want to do it right. However it’s a bit tricky to get such an weird and oldschool design “right”. So it needs time. But let’s start with something else:
Last week i loaded the hatch into my car:

Brought it over to R-performance so they can add new studs to the rear spoiler and he asked for the wing so he can align the studs to the holes in the hatch. Good idea 🙂
This time they were busy preparing the full-carbon bodied K24 Turbo Integra for the coming time-attack season. This car is serious business!

What really gave me headaches was the turn signal switch. After days of trying different things i finally brought of the switch knob from the turn signal arm and was able to disassemble everything:

Here you can see how the (what the manual calls) Dimmer switch works. Contact open:

Contact closed (the wire is short circuited to the turn signal arm which is mounted to the body, so basically it’s connected to ground once the button is pushed):

Of course i broke the plastic knob while attempting to removing it. either i manage to remove one of the other two i have without braking it or i will need to have one 3D-printed for me since nothing is available..

I decided to exchange the old and brittly cable whilte at it so today i took two of the switches to my office and soldered in new wires. Before:

After. Tried two wires with different stiffnes so i can see which one works better. You can see the original wires on the right side. That’s it. next step is getting a good turn signal switch knob and assemble everything back together since everything is clean and all the contacts nice now 🙂