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Are you making these? Or just selling them? If the latter, care to share who the original supplier is?

So it's been awhile since I last posted. Remember that aftermarket ECU? I found out it was bad and causing starting issues and the high idle condition. I happened to find an original replacement ECU from another 1976 2+2 and that solved my problem. I also found that the TPS was missing a screw and out of position on the throttle body. As it turns out, the missing screw had broken off inside the throttle body. I was able to source a used one and installed it. Everything now seemed to work except for the temperature gauge. This was baffling to me since I had replaced it with a new one when I replaced the thermostat and the housing. However, that one was a two piece unit. I tested the temp gauge and wiring by disconnecting the connection to the sensor, temporarily running a wire from the the connection to ground and turning the key to the on position. The gauge needle moved from resting position to max within a few seconds, eliminating the possibility of a defective gauge or wiring. This was reassuring, since I was not looking forward to having to troubleshoot a wiring issue, nor did I want to have to go and try to find another gauge. So, I purchased a new temperature sensor, this time a one piece unit. I had some free time to install it yesterday, and Voila! I once again have a working temperature gauge. Here's the one that didn't work: Here's the one that worked: And the proof:

@TexasZr I recently have been in contact with Sean. He was very responsive. seanz@wanadoo.fr Steve

Thank you! Oh there's rust in it, not too bad though in most places. I think that under the hatch sill is probably the worst of it.

It says on BAT and other places...🤣 https://www.facebook.com/marketplace/item/4161254077491653/?ref=browse_tab&referral_code=marketplace_top_picks&referral_story_type=top_picks

Oh I'm here every day, taking it all in 😄

Good song I heard in a movie with Harry Dean Stanton, "Lucky". Weird movie but he was weird guy in cool way in all his movies.

Valve cover gaskets were never glued from the factory. Still available from Nissan.

Hi Site……If you shave .080 inches from your P90 head, you’ll have to jack up the cam towers .080 inches too. You use the early 280 valves which are approximately .080 inches longer. With this set up, you don’t need the shorter valve seals……they are used when the L24 head uses a cam with .460 or more lift which would squash those seals. If you decide to do that, let me know and I’ll put you in touch with Eiji at Datsun Spirit…..he has everything you need to build that head. He has a ton of Isky Stage III cams also. If you just send him your head, he’ll build you a piece of art. Nice buy for $25.00.

Its a pitty as the car is driveable but has this problem during traffic jams.

Newer but pretty cool!

He didn't but these guys did.

@Nils Ya, when you press the switch it's supposed to flip into the other position. It sounds like you have a similar issue to what I had originally: I could depress the toggle, it would temporarily switch to the other side, but once I released the switch it would reset back to the original position. Yours sounds a little worse as it isn't even able to temporarily switch. I forget which colors correspond to which, but power comes in through the center connection, and then goes out through the connections on the left or right - one for high beam, one for low beam. Ie, we'll just call the connections 1, 2, and 3, with 1 being high, 2 being the center, and 3 being low. 1-2 would trigger high beams, and 2-3 would trigger low beams. You can test that with continuity. You should never have continuity between 1 and 3. @fredrick that's a spring and a brass cap. It sits in a circular opening in a rocker inside the actual switch housing. The piece is held into the plastic via a roll-pin and is the only part I didn't remove when disassembling the whole thing (I didn't think there was a chance I get it out without it breaking. It's the second picture in the first post This whole setup is quite finicky and I've thought a few times about trying to engineer some kind of replacement, but not sure if the interest would justify it.

I will double check that but I don't believe any of that has been changed since my last test fire. I did remove the combo switches and reinstall. Maybe I messed something up there

@solly I don’t believe you answered my question about the check valve. Trying to offer known problems that cause what you are describing

Called a "reaction disc"

It's always a mistake to paint/powder coat those rear stub axle brake drum flanges, Nissan didn't.

Well you do! You have an excellent camera.

http://www.zcarblog.com/wp-content/uploads/2022/03/IMG_9042-1024x576.jpg On Saturday, August 30 the Breakfast Club Rally is hosting Tokyo Calling 5, their fifth All-Japanese car rally starting in Sonoma, Ca. To register and see more details, please visit their website HERE http://www.zcarblog.com/wp-content/uploads/2023/06/295347817_10158887321741524_4308179328201520601_n-1024x768.jpg We have run several rallies with Breakfast Club and it is a total blast, you can see our previous event reports HERE. http://www.zcarblog.com/wp-content/uploads/2023/08/IMG_8606-e1693164189785-1024x660.jpeg http://www.zcarblog.com/wp-content/uploads/2022/03/IMG_8882-1024x768.jpeg Stay tuned for caravan information from Z Car Garage. Z you there! http://www.zcarblog.com/wp-content/uploads/2025/07/TC5anim_lg.jpghttp://www.zcarblog.com/wp-content/uploads/2023/08/IMG_8713-1024x768.jpeghttp://www.zcarblog.com/wp-content/uploads/2024/08/IMG_4871.jpg Enjoy this walk-around and driving video from Tokyo Calling 3: View the full article

Yes thankyou! I want sute how that was supposed to work also Thank-you for the recommendation for the efi Bible I have read it and looking forward to doing some of the trouble shooting, the throttle position sensor test looked especially useful ! Thanks to everyone and i am sorry if i missed replying to anybody your all a huge help! I will continue to post my progress in so maybe someone else can benefit from all the info!

Wow!!! That tranny mount is a rel deal. NOOOOOT!!!!

I have some urgent projects around the house which I hope to be able to finish in the following days, but I hope after that I have loads of time for the Z again. So this will be a very quick update: I got some nice documents from Japan again: The first one is the "Z-2" Service Shuho Book, which is the equivalent of the English bulletins. They have become quite pricey recently, so i stick to focus on the most important ones, but when Z-2 (introduction of the Automatic transmission cars) showed up for a reasonable price, i made sure to get it. Here's my collection so far. There are plenty more, which I hope to add to my collection whenever they pop up for a good price. The second document is the December 1973 Nissan sports option catalogue for the HS30 "240Z". It's probably the most extensive one, which is 12-pages strong. It focuses on the HS30 Fairladies only, which means most of the listed parts also fit my HLS30 car. The other catalogues are either much thinner, or focus on a different car (Z432, for e.g.) or a whole range of Cars (240 / 260 / 280Z). But basically, it was a good price and missing in my collection, so that's why I got it. I hope for more updates, soon, I have some things planned... And I have some very cool things waiting to be picked up by me, or on the way here...

Found a picture that I took in the "let's see if that would really work" phase. In this picture the "mounting plate" (thin piece of flat aluminum) wasn't trimmed such that it would fit the clamshell. That took a bit of further modification to the shape of that plate. But it did prove that the toggle switch would be actuated by the stock turn signal components. I do not have dimensions without disassembling it. I also think it required a bit of trim on the switch handle for the end of it to fit properly in the "plastic thingy" of the turn signal assembly. (plastic thingy - which happens to be on thingaverse as a 3d printable item...) I got this metal toggle at O'Reilly but they can be had everywhere. You can see that the stock switch is much more compact and a little searching might find a smaller toggle than this one - and possibly with less protrusive electrical connectors... I wanted something simple and common.

It's a bit spotty... You may have to try it after a page refresh. I need to run some upgrades soon and I'll let you know if it's more reliable ...

http://www.zcarblog.com/wp-content/uploads/2025/07/Z-Car-Garage-197-copy.jpg Speedhunters, the popular car culture website, appears to be inactive. While there’s no official announcement of the site’s demise, like many fans and followers of the site we are disappointed. Speedhunters was known for its high-quality photography and in-depth stories about car culture. http://www.zcarblog.com/wp-content/uploads/2025/07/Z-Car-Garage-10-copy-1.jpg http://www.zcarblog.com/wp-content/uploads/2025/07/012_2018-SH-JCCS-Booths-Trevor-Ryan.jpg We’ve gathered all 14(!) Speedhunters articles featuring Z Car Garage clients and friends here for you all to enjoy. Who knows how long the site will remain on the web, so click on the photos or links below to read the full features by authors/photographers Trevor Ryan, Naveed Yousufzai, Larry Chen and Mike Garrett. Z Car Garage Shop Tour http://www.zcarblog.com/wp-content/uploads/2025/07/Z-Car-Garage-59-copy-1.jpg Gary’s OS Giken TC24-powered 1971 Datsun 240Z http://www.zcarblog.com/wp-content/uploads/2025/07/Z-Car-Garage-199-copy.jpg Eric Straw’s RB26DETT-Powered 1984 DR30 Skyline http://www.zcarblog.com/wp-content/uploads/2025/07/Louis_Yio_2017_Speedhunters_RB_Skyline_033.jpg James’ 1972 Datsun 240Z Turbocharged L-Series http://www.zcarblog.com/wp-content/uploads/2025/07/MG_4184.jpg Driving While Awesome: Coastal Range Rally http://www.zcarblog.com/wp-content/uploads/2025/07/IMG_0937CRRRewind2019-For-SpeedHunters-By-Naveed-Yousufzai-1.jpg The Joel Anderson IMSA GTU Datsun 240Z http://www.zcarblog.com/wp-content/uploads/2025/07/Z-Car-Garage-27-copy.jpg Alvin’s 1967.5 SR20-Powered Datsun Roadster-by Trevor Ryan http://www.zcarblog.com/wp-content/uploads/2025/07/2019-Kyusha-Festival-Datsun-2000-Spotlight_Trevor-Ryan-Speedhunters_001_7722-1.jpg DWA Rally From Home http://www.zcarblog.com/wp-content/uploads/2025/07/IMG_2348.jpg Mr. K’s Personal Datsun 240Z http://www.zcarblog.com/wp-content/uploads/2025/07/IMG_9938MrK-240z-For-SpeedHunters-By-Naveed-Yousufzai.jpg Eric Staw’s 1969 SR20DET-powered Datsun Roadster http://www.zcarblog.com/wp-content/uploads/2025/07/IMG_8368EricStraw-FairladyRoadster-For-SpeedHunters-By-Naveed-Yousufzai.jpg Gary’s 1971 Nissan Skyline 2000GT http://www.zcarblog.com/wp-content/uploads/2025/07/Z-Car-Garage-183-copy.jpg Alvin’s SR20-powered Datsun Roadster-by Mike Garrett http://www.zcarblog.com/wp-content/uploads/2025/07/Z-Car-Garage-64-copy-1.jpg The 2018 Japanese Classic Car Show http://www.zcarblog.com/wp-content/uploads/2025/07/001_2018-SH-JCCS-Booths-Trevor-Ryan.jpg The 2018 Mitty Vintage Races http://www.zcarblog.com/wp-content/uploads/2025/07/2018-SPEEDHUNTERs-Matt-Dockery-Classic-Motorsport-Mitty-01-2n.jpg View the full article