Leaderboard
-
Captain Obvious
Free Member43Points10,016Posts -
conedodger
Free Member25Points12,179Posts -
siteunseen
Free Member16Points15,058Posts -
Zed Head
Free Member12Points19,088Posts
Popular Content
Showing content with the highest reputation since 09/09/2025 in all areas
-
The OG 240Z - Reanimation Project
10 pointsProof I made it! This is at the judged show. I wasn't ever able to register though because I think it was full. But the zcon organizers liked the car and told me to park it on the show field anyway. Im honored!!10 points
-
The OG 240Z - Reanimation Project
8 pointsWell I made it! Got in late and just laid low. Had a beer with my local Z buddy from home. We met along the way for the last leg near Nashville. Man was that a long trip. But we made it!!!!!! I'm not sure which surprised me more with the success... Me, or the car!!😃8 points
-
The OG 240Z - Reanimation Project
7 points
-
The OG 240Z - Reanimation Project
6 pointsTodays event... I put a160 degree thermostat in. Didn't expect it would help anything, and it didn't. But just for completeness, I had to. So cut some gaskets from sheet with the scissors that came from the first aid kit and the hole punch borrowed from the hotel lobby desk. Haha!6 points
-
1971 HLS30-14938 "Lily" build
5 points@Yarb Made a little progress today. I got the reverse lights fixed with the help of Yarb and my little helper was in town too. Yarb sent me a new switch he had. It's longer than the one I ordered Yarb, do you know the part number for that switch?5 points
-
I know you all are wondering where @yarb has been lately
5 points
-
[2025] What Did You Do To/with Your Z Today?
Changed out fuel filters from 2015 when I did all the work on my 240. Anyone that may be on the fence about Red-Kote fuel tank liner, done the right way it's fantastic from what these filters show or don't show. Heres the G2 right out of the tank. It looked great besides being 10 years old. Fuel came out clear to as I drained out about a gallon before my dumbasss realized the hose on the tank had to be clamped off. Lawnmower gas.😊 I haven't fooled with mine since a knee surgery sidelined me but after @Captain Obvious's heroic adventure got me fired up enough to at least do something. If that beer guzzling rascal can do what he did, ain't nobody got an excuse.😂4 points
-
The OG 240Z - Reanimation Project
4 pointsThanks for the continued support guys! The car has a total of 71000 miles. And looking at the condition, it's a true 71000. So it's typical sketchy details when buying something like this used, but it appears the odometer has not rolled over. And of those miles, I've put about 1400 of them on since I got the car on the road. 400 before departing for Nashville, and about 1000 to got here.4 points
-
Valve Stem Heights
3 pointsHi Site Been a while….not sure, but whatever adds .080 inches….if they are .040 inches, 2 would do. Don’t hesitate to call Eiji….tell him you’re my cousin and if wants to keep eating steak at our house, he needs to be nice! 🤪 He’ll sell you the right stuff.3 points
-
getting 1977 280z started
3 pointsFirst thing - the AFM does indeed have a wiring connector, it's of Bosch design (as is the entire EFI system in your Z) and it's, like most Bosch connectors of that era, a PITA to remove. If your AFM is in place it will be difficult to see as it's underneath all that. Second thing - you really need to make sure the injectors are opening. It's sort of easy if you have the right stuff, and can be done in place IF you know how to release and remove the BOSCH injector connectors... If for instance you HAD a spare Bosch injector connector with a pigtail, you could put it on each injector in sequence and use a 9-volt battery to quickly apply and remove voltage to the pigtail wires. Yes, a 9-volt battery will open an injector. If you hear the distinct CLICK of the injector opening you can immediately rule out the "crapolla, the injector is stuck closed". (here I have to say: one side of the battery needs to be permanently connected, the other (doesn't actually matter which) needs to be loose so you can just tap the exposed wire end to the bare pole quickly. You DO NOT want to hold voltage to the injector except for a very brief period of time - that's how they work, milliseconds... IF STUCK they in truth need to be pulled and cleaned (and flow balanced) by a professional shop OR replaced - BUT most of the time I can get a stuck injector opening again by rapidly tapping the wire for awhile (several seconds or more) until I hear it clicking. That may help you in your effort to get it running even if things are not all perfect. The injector is a coil (an electromagnet) so both of those spade connectors are actually tied together by the coil. You should see that when testing with an Ohm Meter - leads placed on the two should show a steady Ohm value. If that circuit is OPEN, the injector is bad and you can't fix it. Now, you can also test that the injectors are getting voltage - they should ALWAYS show battery voltage if the Ignition switch is in the ON (or Start) position. And, because it's a coil, you WILL see voltage on BOTH sides IF the harness wiring is connected to the injector. If the injector connector has been removed you will see battery voltage ON ONE SIDE of the connector an not the other. The ECU asserts a ground to the other side of the connector to open the injector and, like I said, this happens FAST. You will never see this activity with a meter (oscilloscope yes). Because they are basically a coil IT DOES NOT MATTER which side gets power and which gets a ground signal. Most people wire the "hot" side consistently to one side of the connectors, BUT they don't have to! There is NO "+" side or "-" side. If there was, the injector would tell you.3 points
-
[2025] What Did You Do To/with Your Z Today?
Of course I think of you every time I wear that shirt. Wish you could have made it to the show. Miss the opportunity to share a beer with you!3 points
-
[2025] What Did You Do To/with Your Z Today?
3 points
-
The OG 240Z - Reanimation Project
3 pointsI reckon that they saw the PA license plates and determined that if you were crazy enough to drive it down to Nashville, your car deserved to be seen with the rest of the cars.3 points
-
Let's show vintage racing pictures. I'll start.
Not racing related, but Newman and Redford, back together again… RIP Bob.2 points
-
1972 240z tachometer not reading nor working with MSD blast 2 coil. Any solutions?
Easy test, take the ballast RESISTOR out of the equation: Take the G/W wire OFF the ballast, hook it up to the B/W that's connected to the other end of the ballast. Run the engine. Is it better? Is it worse? Don't notice a change at all? (Better: leave the ballast out - figure a good way to connect the G/W and B/W permanently cuz VOLTAGE. Worse: hook it back up the way it was. No diff: Hook it back up the way it was - if you're sure there was no change.) (I haven't said yet what I'd really recommend which is: replace all your harness wiring, especially the engine bay harness which suffers the most degradation over 50+ years of living on this Earth... Few people listen - even me - I'm just barely doing that in my own car (and it turned 50 last year).)2 points
-
getting 1977 280z started
2 pointsO.P., you should probably pull a spark plug or six and see if (how much) they are sooted up. The Fuel Pressure Regulator (FPR) on an EFI engine is "vacuum referenced" or Manifold Absolute Pressure (MAP) referenced. Meaning it has a hose connection to the intake manifold. The FPR is supposed to maintain a fairly constant fuel pressure differential with the manifold pressure. Nissan uses 2.5 BAR or 36.3 PSI as the required differential. That means WITH the engine NOT RUNNING and fuel pump RUNNING the pressure to the fuel rail and injectors should ~36.3 PSI. When the engine IS running, the FPR will SUBTRACT the manifold pressure while under VACUUM or ADD the manifold pressure if under boost (positive manifold pressure). You don't need to consider boost. But, say you have 10 PSI of VACUUM while the engine is running at idle, your pressure at the fuel rail and injectors should be ~26.3 PSI (36.3 - 10 PSI). First: The ECU DOES NOT get the "tach signal" - that circuit if for the GAUGE ONLY. It is pointless to look for it. The Electronic Ignition Module figures out when to send a signal for the coil to fire - it gets the information from the distributor electronics (pretty sure - I haven't handled the original Bosch L-Jetronic for a blue moon...) Second: Have you tried operating the engine WITHOUT the cold start valve? Disconnected from wiring and/or fuel? (IS your engine only running on the cold start fuel??)2 points
-
getting 1977 280z started
2 pointsI’ve mentioned it some many times in the past about replacing each and every connector on the EFI harness and cleaning each connection in that arena. You will be amazed at the corrosion that you find on each connector and the wire itself. I had to shorten some wire by over an inch before I could find wiring that was suitable to crimp/solder.2 points
-
getting 1977 280z started
2 pointsHow long since a new fuel filter up front on the passenger's side? Sounds awful familiar of a clogged up tank. You can run a hose before the pump to a gas can to bypass the tank as an easy test2 points
-
saturday night music thread
2 pointsThat's a late one. Never heard it. I was listening to them on vinyl on a cheap record player with a penny taped on the stylus.2 points
-
Modern Relay replacements for 280Z Fuel Pump Control Relay and Electronic Fuel Injection Relay?
2 points2 points
-
The OG 240Z - Reanimation Project
2 points
-
[2025] What Did You Do To/with Your Z Today?
2 points
-
The OG 240Z - Reanimation Project
2 pointsSometimes the journey is more rewarding that the show, congrats on all your efforts to make it to the event! Let's see what it can do on the track.2 points
-
1972 240z tachometer not reading nor working with MSD blast 2 coil. Any solutions?
You can download the Factory Service Manual for every year of Z car at nicoclub.com ( https://www.nicoclub.com/datsun-service-manuals ) Coil specs: Engine Electrical EE-26. Electrical Schematic: Body Electrical BE-5 I described the wiring for the tach operation above but: The coil gets battery voltage at Ignition ON through a Black/White wire. Black/White is a Nissan standard throughout the Z cars of the 70's for "battery voltage (or whatever the alternator delivers) when the ignition switch is in the ON position. NEVER assume a Black/White wire in a Datsun has anything to do with GROUND - IT DOESN'T! BUT - the 240Z Tach works on amp draw. SO, the tach needs the B/W that powers the coil to run through it (the tach) FIRST (before it feeds the coil). A ballast resistor was common for ALL single coil distributor engines of that era. Nissan designed the circuit so that power to the coil when through the BALLAST before the tach and coil. That's why the wiring is a bit confusing. IN THE STOCK CONFIGURATION, There are three (3) wires that make this happen: TWO Black/White (B/W) wires and ONE Green/White (G/W) wire that are in the harness bundle that pass in front of the radiator core support and then through a hole in the left side and end up in the coil area. (The coil and the ballast resistor are side-by-side) IF all three of those wires are temporarily disconnected. ONLY ONE of those two B/W wires will have power at IGN ON. Stock config: The B/W with battery voltage would attach to one side of the BALLAST. The Green/White (G/W) would attach to the OTHER SIDE of the BALLAST. The G/W returns to the TACH. From the Tach, the SECOND Black/White (B/W) RETURNS to the COIL "+" terminal. (IF you were eliminating the ballast for some reason, the B/W with power should attach to the G/W so it feeds the tach before sending power to the coil through the second B/W...) THUS: B/W from IGN Switch -> BALLAST -> G/W back to TACH -> B/W to "+" side of COIL...2 points
-
1972 240z tachometer not reading nor working with MSD blast 2 coil. Any solutions?
Sorry, that is positive earth smoke. It won't work on our negative earth cars.2 points
-
Z Story Contact
1 pointI defend myself against unwarranted attacks - texasz came on here on the 26th and by the 29th all had been sorted however during that time you and another attempted to dissuade my client from buying from me ! Yes, I'm not the strongest at IT - each to their own, can you make exhausts ?....... and it was my IT guy that mumbled something about windows and logons - what do I know.... As for my customer base - texasz wasn't yet a customer so how would he be in my customer base. It's sorted for texasz so let's move on, please - have a great day.1 point
-
getting 1977 280z started
1 pointITS ALIVE. i decided to take off every electrical connection off and deep clean each pin. they didnt have bad corrosion but the copper had turned green where it wasnt connected for the last 20 years. I double checked each pin ohms coming through the ECU and finally got each reading within spec. Started it up and boom perfect idle. I appreciate all you're guys help. the resources and information helped a ton. now to bleed the clutch, find out why the break pedel is stuck and see if this thing can move!1 point
-
Z Story Contact
1 pointCan't imagine buying something from Dezart. He attacks people that offend him, doesn't keep track of his customer base, and apparently has trouble with simple internet processes. What do the words below even mean?1 point
-
1972 240z tachometer not reading nor working with MSD blast 2 coil. Any solutions?
@cgsheen1 made a suggestion, Are you not willing to try it? Takes 2 minutes.1 point
-
Different OEM exhaust manifold versions
Photos are of the original N33 exhaust manifold I removed from my 73. Replaced it with an earlier one when I went to round top carbs. I confirm you need a different downpipe. I was able to swap my 73 downpipe for an earlier one.1 point
-
Z Story Contact
1 pointHi - I read this : "Whatever you're writing in your messages must be something he's avoiding." 1) assumption without proof that I'm avoiding him 2) Insinuation that there is a sinister reason I'm avoiding him "must be'' Any reason he would be avoiding you? 3) Insinuation that there is a sinister reason I'm avoiding him reinforced Not a good look for him if there's no good reason. 4) Negative prediction and quite frankly pointless statement - I don't ignore anybody, who would ? Help, where ? Tagging me here wouldn't if I was avoiding him here.....which I wasn't ! Why DM a guy who doesn't respond to a customer's messages? I implied DM the enquirer, in this case texasz, with your opinions w/out facts rather than imply publicly what you did - that's not helping my business nor the potentiel customers' confidence - please think. Have a great day now - it's past ! :-)1 point
-
getting 1977 280z started
1 pointIf you do get the engine running well, replace all of the old fuel lines on the rail and the injectors before too much driving. I smelled gasoline on mine one day while driving and when I opened the hood a tiny stream of gasoline shot by me on to the sidewalk. They dry out and crack lengthwise. The small stuff will eat up a lot of your time but it's worth it once you're done.1 point
-
getting 1977 280z started
1 pointThe engine can run off puddled fuel in the intake manifold. If the injectors were opening the engine would continue to run. cgcheen's suggestion about testing with a 9 volt battery was a good one. You can run separate jumper wires if you don't have an EV1 connector. With a 9 volt alkaline battery you don't have to worry about melting wires if you accidentally short them. You'll hear a click when you connect the 9 volts, if they're opening. Also, with 9 volts you can leave the voltage connected while you tap them. You'll have the solenoid pulling them open if you can get them to break loose. Pin 1 at the ECU is the ignition signal that the ECU uses to monitor engine RPM. It's connected to the negative terminal of the coil. It should read battery voltage with the key on. But it also needs a certain type of voltage pulse. There are things that can screw it up. You're making great progress.1 point
-
getting 1977 280z started
1 pointI almost made a comment about AI. It's basically a better Google search. But that's about it.1 point
-
getting 1977 280z started
1 pointI understand that, AI is a smorgasbord of articles massaged into one. He mentioned he was searching AI. The reason why I asked the question.1 point
-
saturday night music thread
1 pointI've been stuck on this album for a couple of weeks now. I'll put on something else and after that finishes I'll say to myself... Let's give John Hiatt - Walk On another play.1 point
-
getting 1977 280z started
1 pointI can still learn! Yay? https://en.wikipedia.org/wiki/Toilet_Duck Toilet Duck is an American brand name of toilet cleaner noted for the duck-shape of its bottle shaped to assist in dispensing the cleaner under the rim. The design was patented in 1980 by Düring AG from Dällikon, Switzerland.[2][3] It is now produced by S. C. Johnson & Son. The Toilet Duck brand can be found in the United States, United Kingdom and other countries around the world. In Germany, it is known as WC-Ente, previously produced by Henkel,[4] and now by S. C. Johnson (Germany).[5] In the Netherlands and Flanders it is called "Wc-eend", in France it is sold as "Canard-WC" and in Italy as "Anitra WC". In Hungary it used to have the name "Toalett Kacsa". Meanwhile, in Spain, it is sold as "Pato WC", in Portugal as "WC Pato", and in Mexico, Brazil, Colombia, Argentina and Chile as "Pato Purific" or simply "Pato". In Indonesia, it is one of the "Bebek" (duck) line of products, such as Bebek Kloset, Bebek Semerbak, Bebek Semerbak Flush, Bebek In Tank, and Bebek Kamar Mandi.1 point
-
getting 1977 280z started
1 pointClose up any vacuum leaks to the intake system. All air has to pass through the AFM so the computer knows how much fuel to add. And the big screw with the wide washer head on the throttle body is the idle speed screw. It lets air past the throttle blade. You can adjust it by hand to raise idle speed while you troubleshoot.1 point
-
saturday night music thread
1 pointWell you don't know me as a music snob, just a greasy guy from Alabama, but you need to listen to that album. I'm going out on limb without google.com but that's the last one? P.s When I was young you could flip the needle over for a new one.1 point
-
getting 1977 280z started
1 pointits not near close enough to get into the intake. I did test the injectors and they are coming up with 12V now. When i tested them i was testing while cranking thinking both sides would be (+, -) but both sides are showing 12v. i can make it leak anywhere on the fuel rail and it seems to work. its really odd. i dont know how the fuel pressure regulator works but maybe i have too much pressure? Ill check the RPMs. EDIT: RPMs shows, i can keep revs around 800-1000+ and it runs for 10 seconds then stops every time. I engine has warmed up and I tighened the all the hope clamps so gas isnt leaking out and it still runs. Maybe whatever cobwebs were cleaned out since its been sitting for 10+ years. will continue to read and troublshoot.1 point
-
saturday night music thread
1 pointThis is probably my favorite Steely Dan from the only CD I have of theirs. They were a tight playing group on that disc.1 point
-
1972 240z tachometer not reading nor working with MSD blast 2 coil. Any solutions?
Grab another tach off eBay and go from there.1 point
-
The OG 240Z - Reanimation Project
Bruce, how many miles have you driven now as i got no idea, a 1000? In my country you can't drive 350 km, you run out of land! :-) Mart.(in)1 point
-
The OG 240Z - Reanimation Project
I would. But it will take me 35+ hours to get there. If I leave immediately. And break the speed limit.1 point
-
The OG 240Z - Reanimation Project
On the south side of Knoxville. Letting him cool off for a little bit. Anyone from the forum there who would like to have a beer with a weary traveler tonight?1 point
-
1972 240z tachometer not reading nor working with MSD blast 2 coil. Any solutions?
Thanks for the reply and it does make sense. Maybe I'll see if I can find another tach or a replacement smoke kit. Hopefully Lucas parts would be compatible with our Z cars!1 point
-
The OG 240Z - Reanimation Project
Update from the Good Captain: He called me from Bristol, VA. He's making good progress, and the car is holding together, though he is still concerned about the cooling capacity of his radiator. I told him to run the heat, too, but he declined. (Obscure reference: Watch Gumball Rally when the Camaro is running hot.) He expects to hit NashVegas this evening.1 point
-
The OG 240Z - Reanimation Project
1 point
-
The OG 240Z - Reanimation Project
So I considered registering the OG for the judged show just for entertainment value*. But I could not figure out how. I could not see any option to attend. Is that show full and they aren't accepting any more entrants? Anybody have a phone number for someone on the org committee? My electronic footprint is low while I travel, but I can text. *Him - "Dude, your car looks like asss, why are you here?" Me - Yeah, your car is beautiful, but I can see 1000 things that aren't original. And I drove mine almost 1000 miles to get here.1 point
-
Gone and Done It
1 pointI figured I would let the cat out of the bag. From September 2020 at the unveiling, I thought that Nissan finally designed a Z I would want to buy new. I was too young to buy an S30 or S310 new. I was young and broke when the Z31 and Z32 came out, and I never was really taken by the Z33 or Z34. Yes, the RZ34 is a Z34 with a new wrapper, but I really liked the heritage touches. To me it looks more like a GT car and less boy racer. When I talked to a couple of Nissan people during the pre-sales road shows, they confirmed New Sight Orange would be coming. The first Z I remember was a 260Z in New Sight Orange. It was owned by a former NASA test pilot, and I lived down the street from him. A friend's father bought the car and got it back on the road. My friend got to enjoy it for a few years before the car was hit by an uninsured motorist. My first Z, a 73 was originally New Sight Orange, though someone with questionable taste had it repainted a color similar to Metallic Gold, though it looked worse than a MAACO paint job. I still have that car and hope to return it to New Sight Orange some day. I was excited to hear that Nissan was holding to its word that orange was coming back, but my excitement diminished when I learned it was on the Heritage Edition only with a sticker of $62K (plus whatever the dealers think they can charge for a special edition). So I set about looking for an alternative. I noticed that dealers were finally coming off sticker price for the Z. On the other hand most of those Zs were Gun Metallic. While I don't worry too much about color, I didn't really want grey. No blue Zs with manuals were popping up nearby, but finally a Z in Sport trim showed up at one of the closest dealers sporting Ikazuchi Yellow Pearl paint. I took it for a test drive, and the wife loved it. It felt right for my new daily driver, so a couple of hours later I drove it home. The new Z has very good acceleration as one would expect with 400HP on tap. The steering feels extremely light at low speeds, but the feel improves as speed increased. With no limited slip, it's easy to spin the tire a little getting into traffic. The seats are comfortable, and the shifter is in easy reach. The clutch engages higher than I think it should, but I am just going to live with that. The blind spots are huge, but the blind spot warning system seems to work well. The view out the rear window is small, too. I have an Android phone, so one of the USB slots is taken by the phone if I want to use navigation. If you want more creature comforts, or if you are planning on tracking the car, go for the Performance trim. The yellow pearl paint stands out, but it doesn't look like a taxi, even with the black roof. I have experienced one problem with the car so far. Yesterday, the TPMS monitoring system lost communications with all 4 tires. I drove the car around for a while, and the system found the left front, though that didn't last. I guess I'll see how good the local service department is.1 point