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Thanks guys, in the mid term im going to cap it off with an hps 19mm coolant bypass cap. I think I will pick up a spare 3 way pipe as well and see about having it welded / capped off.

Many thanks for all the constructive comments and suggestions. I've been running the AC Delco Friction Modified transmission lube for some time, great product and it has provided a significant improvement in shifting. I suspect I have a bearing problem, primarily occuring on cold start situations. Anyway, I'll move forward on tracking down components. With the recent change to the de minimus rule, it looks like most offshore shipments are now on hold pending guidance from the feds. ☹️

I have a 280 radiator in mine with a full ZX shroud. Works great except it sits lower but the crossmember sits just as low. Took the drain valve off and put a bolt in. So far so good and that was around 2015. Bought it at Advance for $139 IIRC? What is that, coffee beans and a racoon's condom?

Here's the wiring for the E12-80 and the TachMatch's for 240s. Mine works great with Blue's Tech Tip ZX swap so I've got no issues in this. Blue's ZX swap... TachMatch's diagram. You'll have to open in another window. I couldn't figure out a way to copy/paste for side by comparison. 240ZTachMatchWiring.pdf

Lean misses can cause rich exhaust. And California cars did have 02 sensors and catalytic converters through 1975 and up. Where did you get your car? Does it have a "Catalyst" sticker on the driver side door jamb? Looks like it has the proper AFM. Are the injectors original? Doesn't look like you pulled the vacuum hose the FPR to check for fuel. Pulling and inspection of each spark plug is worth doing, you might have a bad cylinder. Check and set valve lash, it's the first item in the Tuenup chapter. Check that your timing advance mechanisms are working correctly, both vacuum and mechanical. 16 is kind of high for idle RPM, the system is designed to retard timing at idle for cleaner exhaust by using ported vacuum timing advance. Check the charcoal canister to see if it's loaded with fuel, and check the operation of the control valve on top. Maybe somebody modified it and you're pulling intake air through the gas tank. The tiny things add up.

Here is a complete E88 cylinder head including valve cover. Ran when parked over 30 years ago. Lubed and free spinning. I would take $300 plus shipping for this head from a ClassicZCars member. Ebay Listing Here

Something's wrong with the first listing. Broken link. The $589 is "Buy it now" and the other is an auction, with three bids to $56. I don't know if EBay auctions have a reserve or not. I'd guess maybe the seller can just not complete the deal? From what I've seen, the way to set a reserve on eBay is to set the reserve as the minimum bid to beat. Maybe he forgot or doesn't know to do that. The $589 is $539 with a coupon.

http://www.zcarblog.com/wp-content/uploads/2020/07/IMG_9860.jpg WE LOVE RACING! Classic Sports Racing Group (CSRG) is hosting the Sears Point Challenge at Sonoma Raceway, October 3-5. Z Car Garage is participating and supporting several client’s Datsun 510 race cars running in B-Sedan Group. This vintage racing event is totally FREE to spectators so please join us! Bring the family, enjoy cool cars and charity rides around the track. Attention DRIVERS: there is still time to register to race! Sign up HERE. http://www.zcarblog.com/wp-content/uploads/2025/09/510255373-1272423368226503-5578166857124943186-n_orig.jpg http://www.zcarblog.com/wp-content/uploads/2024/06/IMG_2779.jpghttp://www.zcarblog.com/wp-content/uploads/2022/09/IMG_0067-1-e1665112285742-1024x614.jpg Again, admission is FREE for this event and you will have access to all spectator areas on track, race cars and drivers. You can see our report from the 2024 Charity Challenge HERE Z Car Garage Supports Five Datsun 510s! http://www.zcarblog.com/wp-content/uploads/2021/09/IMG_5585-1024x768.jpg It is our pleasure to bring more enthusiasts into the world of vintage racing. Our services do include full race support and car-preparation to help make client’s race days seamless and worry-free so they can focus on driving. One of our specialties is dyno tuning. Before a race weekend we confirm that your car is running well and make necessary adjustments while on the chassis dyno: #88 Todd Rueppel Todd enjoyed his Z Car Garage trackside support experience with us at the Laps For Laguna event! http://www.zcarblog.com/wp-content/uploads/2022/09/IMG_0094-1024x768.jpg #7 Kelvin Tse Kelvin and his brother Kenny are regular ZCG trackside support clients… http://www.zcarblog.com/wp-content/uploads/2023/09/IMG_9853-1024x683.jpeg #64 Kenny Tse http://www.zcarblog.com/wp-content/uploads/2023/04/D42_7601-1024x682.jpghttp://www.zcarblog.com/wp-content/uploads/2023/04/IMG_5796-1024x768.jpeg http://www.zcarblog.com/wp-content/uploads/2023/04/IMG_5739-1024x768.jpeg #6 Noah’s Bluebird Coupe #72 Tom Dockery We have helped Tom build and prepare his Ex-Norm Balzer/Koobation 510 for several years. You can view his race report below: http://www.zcarblog.com/wp-content/uploads/2025/08/dockery_Seca2025.jpg #68 and #30 Noah’s 510 and BMW 2002 http://www.zcarblog.com/wp-content/uploads/2024/02/IMG_1245-1024x700.jpeghttp://www.zcarblog.com/wp-content/uploads/2024/02/IMG_1242-1-1024x950.jpg #7 Rob Fuller ZCG owner Rob Fuller, Bay Area Datsun Dealers tribute car http://www.zcarblog.com/wp-content/uploads/2021/07/194911938_10223470558583364_3451851388398014914_n-1024x684.jpg Photo by Jim Rose http://www.zcarblog.com/wp-content/uploads/2021/06/IMG_7351-683x1024.jpg http://www.zcarblog.com/wp-content/uploads/2020/08/IMG_0618.jpeg Vintage Spec Miata http://www.zcarblog.com/wp-content/uploads/2024/02/VSM-Welcome-1024x831.jpg We will also be supporting Vintage Spec Miata! http://www.zcarblog.com/wp-content/uploads/2025/08/IMG_2834.jpg Join us for the 2025 Vintage Racing Season! http://www.zcarblog.com/wp-content/uploads/2023/04/IMG_5896-1-1024x687.jpeg The Classic Sports Racing Group (CSRG) is excited to welcome Vintage Spec Miata (1990-1997) to all of their events! This is a fun, affordable way to get into vintage racing. If you have any questions regarding prep and presentation, reach out to Rob Fuller: rob@zcargarage.com. Z Car Garage is amped for more racing this year. Please check the CSRG website and zcarblog.com for upcoming race events. View the full article

Quite a blast from the past. Filling in the "rest of the story".

Still in original packaging, braided steel brake lines. $100 retail - I'll sell at $50 U.S.

Don't forget about the bronze valve seats that came OE in the E31. They're not good with the gas we use now but you can have them updated to steel for not much money if you're not currently running the head.

Looks like they are also for sale for $1000 BIN with free shipping. eBayAuthentic OEM Nissan Fairlady Z/Euro 70-78 Datsun 240z S3...A once in a lifetime find here! Original OEM Nissan headlight covers originally designed for JDM/Euro Fairlady Z cars. The OEM trim here looks 100 times better than the flat bar $800 reproduction trim

Not the shipping tie downs but the ones that attach to frame maybe? Googled showed some similar when I searched... https://www.google.com/search?q=240z+tie+down+points&sca_esv=06dd4c047f376356&rlz=1C1VDKB_enUS1121US1121&udm=2&biw=1229&bih=556&ei=F8a0aJ7AG4b-p84Pzf-V8Qc&ved=0ahUKEwjep42dhraPAxUG_8kDHc1_JX4Q4dUDCBE&uact=5&oq=240z+tie+down+points&gs_lp=EgNpbWciFDI0MHogdGllIGRvd24gcG9pbnRzSP4gUKwHWIYccAF4AJABAJgBS6AB5QOqAQE3uAEDyAEA-AEBmAICoAJLwgIGEAAYCBgemAMAiAYBkgcBMqAH-QKyBwExuAdJwgcDMC4yyAcC&sclient=img

http://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2471-1024x768.jpg The ZONC Annual Car Show will be held Sunday September 7 in Brisbane, CA. This a fun event in a great location so bring out your Z, G, Datsun or GT-R! Pictures from previous shows can be seen HERE with more details below. Z you at the show! http://www.zcarblog.com/wp-content/uploads/2025/09/540959607_24489751663968460_5939933431851389576_n.jpg Enjoy these photos from previous ZONC annual Car Shows: http://www.zcarblog.com/wp-content/uploads/2017/07/IMG_4083-1024x768.jpghttp://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2507-1024x768.jpg http://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2537-1024x768.jpghttp://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2511-1024x768.jpghttp://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2513-e1533073973161-1024x629.jpghttp://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2423-e1532979419824-768x1024.jpg http://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2430-1024x768.jpghttp://www.zcarblog.com/wp-content/uploads/2018/07/IMG_2548-1024x768.jpg View the full article

A good one. And you can't even here the Beatles.

How is that any more than just a guess - like the "I'm turning down the knob 2 1/16 turns"? Don't you need to know the AFR created by adjusting the jet position? And isn't the position different for varying temperatures and elevations?

@smdvr67 I would delete your personal contact info. Bots crawl the web looking for info like this! Only share personal info through Private Messaging / PM's

Right now it's on the motor, but I was surprised at how the empty cavities will flash rust in high humidity. I'm sure I will always have the obligatory rust. Hopefully some small bolt somewhere,. A speck is a sufficient qualifier... ;)

240Z rear control arm. Powder coated black. Straight. $25 ps Trying to get my garage and desk organized, I plan to list one part, with photo, every day. In the meantime here's a list, minus photos - if any one catches your attention, just write and I'll send photo. All parts are 240Z Two drive axles Two diff mounting springs Brake master cylinder Left headlight bucket pair of the battery and brake cylinder covers horn button heater - water connection New lowering coil spring set clutch and brake pedal assembly :

@Mike , There has been more spam added to the post by the bot.

My mechanic replaced a pertronix 1.5 0hms coil and 1.5 resistor coil with an MSD Blaster 2, 3 ohms coil. He got a better spark at idle and car runs much better. The thing is the stock 72 240z tachometer doesnt work any longer. Can someone give us directions on how to connect this correctly so it works as it did?

😎

@Patcon the exterior will print smooth, it's a graphics display issue and how SolidWorks saves the .stl file. When you slice it for printing the surface is rendered smoothly. Will post a picture of the first sample print when it's done, I'll do a trial piece in laser sintered nylon first. This is a sample off the Prusa 3D printer in SLA, much smoother than the graphic rendering. With laser sintering it uses powder to print the object so the layer lines and polygons are smoothed out. These are for my own use, I have no plans to sell them.

I think we always lose control of it. All we can hope for is that science fiction is just that.... fiction. Star Trek ("The Ultimate Computer" for example) Matrix Terminator I Robot Ex Machina

I have a few hoods but it will depend on your definition of nice decent, they will all need a little work. A little South of Olympia.