Zed Head

The guys with the money, so funny. If they had their way people would have to pay to comment on the cars. The high end BaT car auctions are more like a big money poker game. Who's bluffing who. They don't want to know until the sale is over. https://bringatrailer.com/listing/1971-datsun-240z-345/

Considering the cost of parts today ($20 half shaft bolts, see previous thread), this 2+2 might be worth collecting just for that purpose. It runs, but has a 4 speed. Looks like an R200 also. https://bringatrailer.com/listing/1978-datsun-280z-22-27/

Which hole? You could probably buy a small selection at your local hardware store for a few dollars. Try them out and you'll know.

I wonder what this means -

It wasn't meant to be a link, just an abbreviation. Something in the browser or forum software does that automatically, I think. ithink.com link.com thislinkwontwork.com

EFI/pump relay. Which one did you order? You didn't say. Don't overlook that the pump relay is controlled by the switch in the AFM. And that there is no "prime" like on today's vehicles. The pump relay is energized by the AFM switch or when the key is at Start.

There's a driving video now. Speeding up and down an airstrip. Lots of woohoo comments. It's an interesting endeavor. Pretty dangerous for an unskilled driver. I wonder what the weight distribution is. Sitting at $30,000. https://bringatrailer.com/listing/1971-datsun-240z-345/#comments-anchor

Not trying to be snarky, but isn't that what the ammeter is for? Seems like the cause of the problem was a bad connection that got fixed while disconnecting and reconnecting connections. I almost replaced a starter once because of that, and diagnosed a T connector problem at my alternator after I learned that lesson. Examination and adjustment with a pair of pliers (give the female side a squeeze if it's loose) is probably worthwhile on everybody's vehicle.

Maybe the spade connections at the adapter plug just lost contact. "New" connector in to old connector. Would have showed up with the T pin voltage check. Next time... Might explain the "meltiness" of the adapter also. Poor connections can produce heat.

It got a nice price when it had the L6. $46,200. Not sure that 454 is going to add value. I'd guess most of the aftermarket parts went on after that sale. No driving video yet. 1971 Datsun 240Z VIN HLS3042112 | Hagerty Valuation ToolsHave you seen this 1971 Datsun 240Z VIN HLS3042112 auction result?

I was describing its function, not the actual material wire. The trigger wire for the new tach is its own independent circuit. I was also trying to tease out if you're replacing the stock tach or adding another tach. Are you sticking the new tach in the hole where the old one is? Your other basic question might be "how do I keep my ignition system functioning if I remove my factory tach?". Since they are tied together in the 240Z's. Just breaking the "how do I connect my new tach?" question in to its elements. Seems like you're on top of it. Good luck.

Everything you need is here on CZCC.com The relay you show is not just the fuel pump relay it's a combined fuel pump and EFI relay. The relay that EuroDat showed is the proper replacement. It was used from 1975 through 1977. In 1978 Nissan separated the two relays. Nissan calls the EFI relay the main relay. They don't usually rust like yours because of their location. I'm still impressed by the challenge that you're taking on. Remember to check for shorts to ground before connecting the battery after you fix things. Those original pictures look like a wire fire waiting to happen.

It's a voltage triggered tachometer. Like those in the 280Z's. The yellow wire can, and should be, completely separate from any of your existing wiring. To run the Speedhut tach. Seems like your real question might be "what do I do with the wires from the old tachometer" to keep things working correctly. If you're replacing the stock tach. If you're keeping the stock tach, you could just leave it untouched, and wire in the new tach using the instructions. It won't affect the ignition system, since it just senses the voltage changes at the coil negative terminal. Just offering a reinterpretation of the original question. https://speedhut.com/content/instructions/2_and_2_58_tach.pdf

Here's an interesting one. A Pierre’s Z Service Center creation, apparently. https://bringatrailer.com/listing/1971-datsun-240z-345/?