Zed Head

Time will tell. The bushings do take some abuse, both physical and temperature extremes. Rubber is hard to get a good bond to, especially if it has processing/plasticizing oils added. The stuff that "sweats" out and makes it feel slippery. Hate to be a downer, love a new idea, but I wouldn't rush out and try this until some time and use has happened.

I get a high-pitched whistle from the transmission at high RPM when I'm banging the gears. It sounds like some sort of extra boost, but it's probably just something wearing out.

Could you "ball park" the cost to have that done? http://www.speedometerplus.com/

"Whining baby" is not a title that makes people want to look. Here is a good writeup on the "71C" swap. There used to be another one by Nigel on Motortopia.com but it's gone now. @Nigel http://zhome.com/ZCMnL/tech/240SX5spd/transmission.htm

My old original 76 tach would stop working, it would only go so high if I remember right, after a drive on hot days, then come back when it cooled off. Consider heat. It seemed like something binding.

$44,000 and it's a 2+2 with automatic. But barely driven and all original. What would a person do with it though? Why do people keep saying "Fairlady"? Doesn't really add anything, except a vague memory reference to a popular movie. "This 1976 Datsun "Fairlady" 280Z 2+2 hatchback has 1,358 original miles (mileage not indicated on the registration). It is powered by the original 2.8-liter SHOC inline 6-cyllinder engine with Bosch Jetronic fuel injection, mated to a 3-speed automatic transmission, and is equipped with front disc brakes. It also has factory air conditioning. Still finished in its original Bronze Poly Metallic, it features its original tires, books, manuals, and even the original title and sales brochure. The original tools and jack are still in their original wrappers, inside the trunk. It has a 3-ring binder containing original documents along with ownership history and maintenance records."

The Nissan fuel pump control relay is an odd one, with two solenoid switches in it. The 5 pin that you showed won't work directly as a replacement, since it only has one solenoid. If your relays are still installed on the car you might try unplugging your oil pressure switch and turning the key On. The fuel pump might run then if the oil pressure switch side of the the relay is intact. The pump will lose power when you turn the key off, so it will only be dangerous in a car accident. Might get you by. It seems odd that both relays would be bad, unless the car has been under water. Any chance that you wrote down the results of your tests? There might be a simple short term solution based on test results. The fuel pump relay itself is a common 4 pin relay, easy to replace.

Relays just need straight forward logic. They can be tedious though, for sure. Guessing is bad where electricity is concerned. You didn't say if you confirmed that either of the two relays were bad even though you copied from the test section, so it looks like you've made your decision. Wire up the new relays and run the tests. If they pass you guessed correctly. Good luck.

What did you base your guesses on? The wiring diagram is in the Engine Fuel chapter of the FSM. There are also test procedures for the relays. Might be that yours aren't really bad. Any chance you could post a picture? Not a fan of clicking strange links. Never heard of docdroid. https://www.classiczcars.com/files/category/13-280z/

It looks in great shape, for sure. The Z-series on eBay is full of cars. Didn't realize that eBay had become so popular. Here's an odd one though. Giant rear ties, tiny motor. Don't need the traction and the handling will be messed up. It's for show apparently. https://www.ebay.com/itm/1973-Datsun-Z-Series/113330558462?hash=item1a630715fe:g:tC8AAOSwz5hbtQs4:rk:7:pf:0&vxp=mtr

Three hours left - https://www.ebay.com/itm/1977-Datsun-Z-Series/254056222726?hash=item3b26ee5006:g:2HAAAOSw~flcMoIF:rk:3:pf:0&vxp=mtr

It's the best 240Z in the country. For sale Great condition Datsun 240Z 1972 model the most preferred Z Car...w/AC 5 Speed Triple Weber's The Best 240Z in Town possibly the country..... SERIOUS INQUIRIES ONLY .This vehicle was choosen By Mr. K in Las Vegas Convention the first time he ever choose a Z car. Have the brochure from the convention.The glove blox is autographed by Mr. KAnd also by the designer of the Datsun 240Z

Just an experiment here to see if I can get the links to go hyper. Sorry, it didn't work. Wait, the Harbor Freight link did on the second try. Don't know why they don't paste in correctly.

I made a thing out of some steel I had laying around. https://www.classiczcars.com/forums/topic/53335-starter-mount-plate-for-transmissionless-starter-usage/ If you have an old EFI harness and some extra parts, or some old carbs, you could get it running. It might have some surface rust on seats of the valves that were open while it was sitting. Even some starter fluid through the manifold with just a distributor might be worth doing for just some short blasts of power to reseat the valves. Harbor Freight has some nice small dollies that will hold an engine. https://www.harborfreight.com/material-handling/dollies.html

Good reason to buy a bore scope. They seem pretty inexpensive and of decent quality these days. They probably have some that connect to your phone so you can snap pictures or video.

Could you use an air wrench on the damper nut? Like the race engine starters. Might spin you over instead of the engine. Just a thought.

I see now. Craigslist has a weird search engine. Most of them will find a word buried within another word. Like 280Z is in 280ZX. CL doesn't do that. It finds 280ZX though. @Mark Maras is around here. But I know you're joking...

Now my link doesn't work and I can't find it. Serious. It's not there - https://portland.craigslist.org/search/sss?query=280z&sort=rel

Here's another sales site that we don't see often. One private seller wants $58,900 for a 71. Looks like it will do a burnout too. https://www.hemmings.com/classifieds/cars-for-sale/datsun/240z https://www.hemmings.com/classifieds/cars-for-sale/datsun/240z/2211907.html

It would be cool to see those transactions. I've seen it suggested they happen in secret, but without seeing one it's hard to know what really happens out there. Of course, value, as is often said, is what a person pays. The only person that can really assign a value is somebody who buys one. Sounds like you're saying that a sub-500 VIN adds about a 50% premium. Don't know, just would like to see a real $100,000 transaction documented. It would mean more, no offense. https://www.hagerty.com/apps/valuationtools/1970-datsun-240z

Might last longer than you think. You can only find it if you leave the "0" out. 28Z. https://portland.craigslist.org/wsc/cto/d/cornelius-1977-datsun-28z-classic/6792668176.html

Here's a $25,000 78 2+2 https://www.ebay.com/itm/1978-Z-Series-2-2/273616884186?hash=item3fb4d651da:g:zv8AAOSwVRBcGW0Q

The 3543 auction ended at $19,200. Didn't realize there so many Z's in eBays' Z series category. Didn't even know they had a Z series. A decent looking 77 (actually 78 I think) just came up in Minnesota. @197TZ https://www.ebay.com/b/Datsun-Z-Series/6001/bn_24016624?_dcat=6001

I had an incident where I forgot to tighten my lug nuts and several flew off in a short test drive. I was down to two on one wheel. I think I've been overtightening ever since. I have a torque wrench but grew up doing lug nuts by feel. I need to break out the torque wrench for the aluminum wheels. I would just give them a light brushing when the nuts got hard to insert. I was having brake problems so they were on and off frequently. I just bought a truck though and the spec is 150 foot-lbs for steel wheels. That would crush the mags. Pretty sure the aluminum spec is much lower.

There's a video. You have to click the link in the eBay ad. Almost as tedious as the pictures but something actually happens at 3:40. It's actually not a bad car. $32,995 seems crazy though. Especially with a dash carpet.