Dens240

Curious about the 280Z switch...part number 46100-N4200. Any similar advice around that one?

I plan to remove it from the car today and then disassemble/clean/assess. I am still missing the probe that connects to the electrical circuit to activate the light on the dash and I'm unclear about how that will affect the performance of the "plunger" inside that moves when a pressure imbalance is detected. Without the probe associated with the circuit, can the plunger move too far and jam to one side or the other?

I'm having a similar issue on my 72. I've been wrestling with the brakes for a few weeks. The rear works fine and I can bleed those lines without issue. However, I don't get fluid flow to the front calipers. Rather, I had fluid flow to the front calipers and no longer do. I have tried two new master cylinders so I know that can't be the issue. The next most likely culprit will be this switch device. Mine is "original" (as in it was in the car when I towed it home 4 years ago) and is missing the electrical sensor. I installed the part during my reassembly and had reasonable braking performance for a few days. Then, I tried re-bleeding the brakes with a vacuum bleeding kit and haven't had front brakes ever since. I now suspect the pressure switch is pushed/stuck to one side and not allowing brake fluid to the front circuit. Does that sound reasonable? Has anyone removed this part and used something else in its place? The car is almost completely reassembled and finished but I can't drive it until I solve this problem!

Looks great!

Looking fantastic. I still need to come by and go through your A/C installation in detail. I'm nearly at that point on my '72 and need to decide on my path forward. I'm also almost ready for the first start so if you hear something odd coming from just south of you, it could be that! Dennis

Can you give a few more details about what you did to clean up the valve cover? It looks fantastic.

Can you show a photo of your A/C hose penetration through the firewall? Are you using bulkhead connectors in that location? I'd still like to get up there and see this build in person!