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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

Nope, doctor said it was plenty big just wasn't getting the amount of blood it should, effecting output. I may have to get a catheter put in at some point. Like a G3 between supply and pump.

Exactly that. The engraving fixture hooked onto the firewall in a fixed position (one for RHD, one for LHD) and the operator did his stuff. 99.999% of the time he got it right. The rest of the time stuff like this happened:

@hotsho111 Nice rundown of the switch design and components, thanks. I have a related problem. Apologies for hijacking the thread, but this seemed like the right place to ask :) On my car (05/71 240z) only the low beams work. Flipping the high/low switch does not make any difference. I’ve removed the switch from the column but haven’t opened it. It’s still connected. When measuring the voltage between the black and the red/yellow, it shows around 12V. When measuring between black and red/white, it shows 0V. This is consistent also when pushing the switch multiple times. I guess this means the switch is broken? I’m confused though, because when checking the continuity between black and RY, and black and RW, there seems to be continuity between both. This is when using the voltmeter in continuity (sound signal) mode. Is this normal behaviour? If the switch turns out to be broken and unrepairable, do you know of anyone selling new or NOS switches?

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

Spooky scary Saturday night space music.

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.

33

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