Leaderboard

If you're having cooling problems, a fan shroud is a good place to start.

Looks like the picture is as it was de-boxed. If you look at the coolant passages it looks pretty corroded. Also interesting that if "polished" means the rocker arm pads, that that is different than reground. I wonder how the wipe pattern looks.

Just putting this out there for people to remember when diagnosing electrical issues, I have seen this on a couple of cars now. First a 260Z with no turn signals. The hazard lights worked. We looked for continuity from the switch to the bulb socket. The test failed, so I took apart the connectors to see where we were losing signal. All of the harness sections tested good. We plugged the harnesses back together, and the turn signals worked. Next a 280Z with an intermittent temperature gauge. After testing for a while with mixed results, I separated the dash harness from the engine harness, again with inconclusive results. After I plugged the harness back together, it worked. Don't forget to unplug harnesses and reconnect them. Some contact cleaner or Deoxit doesn't hurt, either.

The black/yellow wire should only be energized if the key is in the start position. If you have a voltmeter, see if there is voltage to ground at the black/yellow wire. Also check for voltage to ground at the terminal on the starter where the black/yellow wire lands. One of two things may be happening: The switch on the back of the ignition switch is going bad and supplying voltage (but with a very small amount of current) to the black/yellow wire. The starter is going bad and somehow is backfeeding the solenoid, again with a very small amount of current. I didn't see any obvious cross-connection possibilities in looking at the wiring diagram. I hope no one ever decided to re-wire things to "make them better".

I think I would keep the period correct upgrades and offer the OE parts as well when you decide to sale. When I read BRE and Mulholland it raises my interest. Just my fyi. Take it with a grain of salt...

And it still ran!!!