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Here are the thread rules. Again. For any hardware you are likely to encounter. 4 x 0.7 5 x 0.8 6 x 1.0 8 x 1.25 10 x 1.5 - bolts that thread into the engine block. Trans, head, brackets, 10 x 1.25 - All other M10 bolts, ie suspension and body are 1.25 12 x 1.25 - wheel studs, front spindle to steering arm, trans mount (later), TC rod ends, Flywheel , spindle pins 14 x 1.5 - diff strap bolts, front control arm pins 16 x 1.5 - Crank bolt 20 x 1.5 - Rear Stub Axles Threaded pipe fittings are all BSPT, A/C and EGR excluded. There is a 1/4x28 SAE thread somewhere for you to find as a test. There are 7/16-20 SAE too. Another test. And what the heck is up with those short fat rear control arm bushing bolts? And why do I have 2 or 3 dozen of them? The first 7 on the list are the ones you should have taps and dies for on hand at all times. Better yet the thread restoring kind, not the thread making kind. Print this out and post it on the shop wall.

Recently a guy on FB posted he had bought a bunch of Datsun tools and tool boards. He has them all cleaned up and mounted on the garage wall. Makes a nice display. I have the Special tools manual from 9/69 and a couple of mechanic seat covers that I really have never seen before. Do any of you have any info on the seat covers?

Concept car…

Yup, 7/16-20 for the seat belts. M12 is a valid spec as well from some DOT document I found 15 years ago when I was researching aftermarket replacement belts. No idea what manufacturers adopted world wide. Also curious what seat belt threads were used on the various early 60’s datsuns (411, roadsters etc). The 1/4-28 are on the two Z hood bumper . Craziest thing I’ve ever seen. Must have been supplier determined at the time.

I posted a recent issue with my Mallory ignition. The Uni-lite ignition module would test bad when the car would stop working but after it sat for awhile it would test fine and the car would run again. After changing the ignition module a couple of times, and with some input from this forum, it turns out that a PO installed a second shunt resistor in series with the first one. I removed the second resistor and so far the car has been working. I think the issue with the shunt was that on removing it, I observed the exposed coil of wire in the shunt was damaged and likely was not giving a constant resistance, possibly no continuity at times. Even if you have just the single shunt resistor, if it fails like this one did, it might cause the same issue.

Yesterday, the postman delivered a big package from Japan again. This time with a load of cool documents. The first one (Bottom right) is the Race and Rally preparation manual. I bought this one for a friend, since I already own one. But it's always cool to see those. The second one is a combined S30S(A) / GS30S(A) brochure for the standard Fairlady Z / Z-L and the 2by2 versions. See also Color samples at the bottom right: For whatever reason, one of the Japanese lots included a US-Market 240Z Brochure. Not something I would usually buy, but since I didn't have it in printed form yet it's cool to have it anyway. From the Japanese market again, I got this Fairaldy Z / 240 Operation manual, which also includes the Z432 versions. These are particularly useful to find some details of the interior for my knowledge posts. This is the later version that also covers the ZG and other HS30 variants (the early versions only covered the Z / Z-L and Z432): Then I got two of the Japanese marked fold-out Fairlady Z sales brochures. It's basically a brochure on one side and a ZG Poster on the other side. I was buying one, when a second one was included in a Lot of documents. Once I got them, i realized that i already had one, So now i end up with three. But, I intend to frame one as a Poster and I realized that there are different versions. Both the Material (paper-weight) and print is different: For me no doubt the coolest item is this Nissan Racing school brochure: With the Checkman Sponsored GTS-II Works car on the back. Especially this version of the car with the "Batmobile" rear aero. I just love everything about it. The sponsoring, the aero, the livery. Another Magazine was the "Nissan Graph" Customer magazine from April 1985. Which also included some racing school details. I'm working on a knowledge post about this, that's why I started to collect some information about it. One general 1971 Japanese Nissan brochures also included the ZG: And the general lineup on the inside. I guess this magazine was issued at a Car show in 1971 or at the dealerships? It also included some cool drawings of the 216X Concept car: Another similar brochure (without date) from Nissan Tokyo, which again shows the ZG and some other nice cars: On the inside you find the lineup from that time, but with a regular Fairlady Z and Z-L shown. Another cool book is the J's Tipo Fairlady Z Archives (002). J's Tipo is a Japanese car magazine, and this book is basically a collection of all their Fairlady Z related stories from various years, compiled in one book. After I met Morita san, the Author of the Fairlady Z Story and History books, in Japan recently, I had to get "Volume 2" of the book. I've owned Vol 1 for a long time, but never the second one, since it wasn't so relevant for the S30. But now I had to get it :-) Then i also got this Jack and tool stowage reproduction Sticker from Germany. I had this Genuine Datsun Parts sticker for a long while and always wondered how I can present it. When I found this piece of Aluminum sheet, I got the idea to make a sign out of it. So I cut the aluminum. And then put the sticker on it. So I ended up with this cool sign. And found a good little Spot for it: I also found a nice place for the NISMO sign, but it looks a bit small on this big wall, next to the huge Datsun sign. I have some projects planned for the next week and hope I can get back working on the car itself, so stay tuned for some updates, soon.

Poppin' back in for a bit, although @conedodger and @Yarb see me quite a bit in The Rusted Zed Pub section. 😎 🍻 It's been a few years since I've spoken with Gary Moisant but I'm pretty sure he's still around up in Oregon. Can't get him away from the race cars! The last time I spoke with Keith @2ManyZs (many, many years ago) he was having some health issues. I reached out once by email a few years ago but never heard back. Edit: I reached out again to Keith yesterday and he is still around, still has his Z but it is still unfinished. So, I popped back in here because I ran across something the other day that made me think of this thread. I saw my old Z for sale on Marketplace!!! She's about an hour's drive away and actually less than a mile from my mother-in-law's place! Paint still looks good (which I'm pretty proud of!) but that four-letter "R" word has started coming back with a vengeance! The guy who is currently selling, bought her not too long ago from the guy I sold her to. I stopped by yesterday on my way home from Austin, TX to see her, talk to her, and wish her well in the next part of her life. Still has good bones, but the level of repair is far more than I'm willing to tackle at this age and stage of my life. It was cool to see her again and I can't say I didn't shed a tear or two... We did go down the roadster route for a few years but not anything from Datsun. We did the Miata thing. Cool, fun little car that was a blast to drive. Helped that it was already set up for autocross which made street driving an absolute blast! Top down every single drive, even if we got caught in the rain (as long as you stay moving...)! But alas, as the wife and I both start looking toward retirement all of the toys have been traded up for a large center console boat for fishing down on the TX Coast! Grandkids are on the way and life's focus has just changed. The Z will always be a part of my life and I will die loving the sleek lines of the S30s, but I don't think there will ever be another one in our garage. Add it to the list of cars that "We should have never sold!" 😉 Y'all keep the rubber down and the RPMs up!

I've been traveling a lot recently, and been dealing with life, but I still managed to collect some cool stuff: I got hands on this cool vintage NISMO enamel sign from Japan: And this cool Poster, which shows a works GTS-II race car. The seller says he got it from a racing shop called Iwashita racing in Shizuoka, many years ago. According to Alan, it shows SCCN works car from the first round of 1972 Fuji Grand champion series on the 20th of March, with driver Kazuyoshi Hoshino. I also found this Dutch 1971 Datsun Advertising magazine. Usually I don't collect documents from other countries (there's just too many), but this one is special, because it shows an EU-spec prototype car. If you look closely, you will see the Fender-top mounted blinker / turn signals and the Rob Janssen homemade front spoiler, which led to the development of the OEM front spoiler for European cars by Nissan. Then I got a reproduction of the MK-1520 ZC car radio manual and a correct Swiss 1972 service / Warranty booklet for my car. After a bit of a search, I also managed to get this cool Nissan Oil Can: With the Elephant oil logo from the 240Z oil filler cap: I also got gifted a Center cap from a friend. Not the correct one for my car, but who am I to turn down freebies? I also found a set of NOS OEM FS5C71A transmission "monkey motion" shifter bushings. The original ones of mine were worn out, and I had them replaced with some red aftermarket ones, but these will definitely look better. Then I'm constantly on the hunt for the missing tools of the Datsun / Nissan tool boards, which I acquired recently. Luckily they pop up sometimes, and recently I got a bunch of missing ones: There are still quite a few missing, but 2/5 tool boards are complete now, and the remaining ones are filling up quickly. I'm currently awaiting more deliveries, so expect another update soon. Oh, You may have noticed that I've also reorganized my workshop and garage a bit for better usage of space.

I remember reading an industry website several years ago where the writer predicted that the only distinction between mainstream brands of power tools would be aesthetics (colours, textures, legacy, etc). Looking at what I see in 2025's North American market, I'm inclined to agree. But I think that only applies to ~ revered old-school USA brands like Porter, DeWalt, B&D, etc. For comparison, look at what's happened to old-school non-automotive brands like 'Schwinn', 'Singer', 'Sunbeam', 'GE', 'RCA', etc. Offshore' brands (Bosch and Makita come to mind) might have a little more to offer than just marketing. Unfortunately, there's no universally-accepted evaluation standard. These days, it's just the 'Wild Wild West' of YouTube evaluators Caveat emptor.

Hi, I have worked some minor things for mirrors, horns etc. Fairlady Z series has mirrors on the front fenders and the way they mount is completely different from the one for the US. Mirrors have to be flexible when they hit something. The horn, the Higher tone has “H” and te lower tone has “L” shown on the bracket. You see S12, I am sure S means 1969, 12 means December. It makes sense to my 01/1970 Z432. My two 03/1970 cars have T2, indicating 1970 February. Also my 1972 June 240ZG has V6, The rules seemed to apply for all of my cars. Kats

All that hype in the BaT comments and it didn't even get near six-digit territory. For about that same amount of money I'd rather have a C-7 Z06 LZ3 convertible. Similar horsepower and you get a heater, A/C, audio system and a functional convertible top.

Wait until you find out about power tools...

200,000! - 139,500 = 60,500

@EuroDat is the guy I'm pretty sure you're thinking of. He does some amazing things and always has great pictures to share his work.

I believe the OE spec tor the oil drain plug is 3/8 BSPP. The threads on mine measure 16.43mm major diameter, which is at the low end of the BSPP parallel spec, 16.662mm +0/-0.25mm. I don't have a metric 55 degree thread gauge but my 1.3mm 60 deg. thread gauge is very close to the spec pitch of 1.337mm. https://amesweb.info/screws/bspp-thread-chart-calculator.aspx

How to Modify Your Nissan/Datsun OHC Engine, original edition: has a blemish on the back cover, excellent otherwise: Price is $20 plus shipping How to Hotrod and Race Your Datsun, original edition: In nearly excellent condition: Price is $100 plus shipping How to Restore Datsun Z-Car, original edition I believe (copyright is 1990) - binding shows some light detachment - all info on pages is intact. Overall condition is good Price is $10 plus shipping PM me with questions. ---Garrett

Great post. This info really needs to be added to 'Knowledge Base'.

Finally got my exhaust finished. With the kenmeri header mated to my Fujitsubo exhaust. There was a small gap between the flanges. Designed up a small spacer. This is 316 stainless.

It's unfortunate so many cool looking concept cars don't get built or the coolness gets lost in the transition to production line

That's what we did with boats, river racing. Put spray paint marks on the inside of the highway guardrails along the river. 13 hundred and 20 feet, run what you brung was like a Bible verse I'll never forget.

Wonderful stuff you have obtained, I envy you! In addition I have never seen tools boards, wall mounted tools are so cool. Thank you for your gift “tools manual” which is replicated nicely, I think I have the lost pages in digital format when one of my friend on facebook kindly gave me. So we can share it. Kats

From the looks of it, it will break $46k but I doubt they will recoup the investment

If you follow me on social Media, you might have noticed that I spent the last 10 days in Japan with my fellow S30.world friends for a very special once-in-a-lifetime experience. I'll post multiple detailed stories on this website soon, but I still need to process it all in my brain and go through thousands of photos. What I can show you already is what I brought home from Japan, aside from all the business-cars and fresh S30.world clothing (not pictured): First, a set of Papers with the "Nissan logo": Those are the ones that Nissan dealers usually put in new cars to protect the carpets. We had them at our Car show in Japan to protect the floor from tire-marks. As we had a lot of them leftover in the end, I thought i stuff two in my suitcase :-) I also got various stickers. From the old NISMO logo stickers, which I bought in the Nissan HQ Gallery in Yokohama, to a handwritten Kanji-version of my name, to various stickers of the event, and a sticker that me a local Honda dealer gave when we checked out their cars. Some went of course directly onto my new "Hall of Fame": I was also very fortunately to buy one of the very last RS-Mach "Ura Mach" steering wheel from the maker himself. I have planned a detailed story on this blog about the Mach steering wheels, so stay tuned, if you want to know more. He sold all the remaining ones he had on this very day and doesn't plan to make new ones. I also came home with a lot of Magazines and catalogues. From the Protec catalogue to the Nostalgic hero (showcasing the new NISMO DOHC head, which we would be able to check out the next day), to the nice Motorfan Fairlady special edition which I was gifted by Endo-San, To the new Motor magazine 70th anniversary edition by Editor Morita-san, which joined us during the first days of our trip. At RS-Watanabe we got gifted with a nice bag that also included a lovely box with their iconic Watanabe 8-spoke wheel as a miniature keychain version. Lovely! From Morita-san i was gifted the lovely pin in exchange for a document I gave him and from Jeff we got gifted some ZCon keychains and a group Z sports car club Bolt tray. The bolt-tray went directly on my car lift: Then we also got gifted a set of reproduction rubber plugs for the drum brake drums from a good friend and Endo-san handed out NOS spare bulbs in original packing, which will be excellent to put in the glovebox :-) In a local toy-store we found a box full of mini 240Z's for 90 cents a piece, so I got a bunch of them as a gift for customers :-) From one of the Japanese participants of the show, we got gifted these lovely 70ties scanned magazine covers from two Japanese 1971 "Autosport Young" magazines, which assemble to a nice poster when you put them together. Aside from the naked lady, you see all the Nissan Fairlady Z Works race drivers in front of one oft their racing cars. I framed it and hung it in a nice place in the garage: We also got gifted some copies of hand made sketches by Tamura-san, one of the original designers of the S30 car, plus a nice photo from a LHD prototype car: Then I also got this. I understood that this is some kind of rating chart and something very special, somehow linked to Sumo battling, but still have to find out what exactly it means. Another cool thing was this S30.world Japan expedition Lego kit: Which, when you assemble it, turns into an S30 under a Japanese Torii gate with the S30.world logo on it: I was lucky my suitcase didn't burst. I would have loved to buy more stuff, there was definitely no more room for that, and that's fine for my wallet too :-) Expect more updates from our Japan trip soon!

Grab a torch - propane will do - and melt the body lead out of that section. That'll give you a better idea of how that sheet metal is shaped and spot welded together. There will be body lead in various places all up and down that pillar. The lead will probably have saved the sheet metal up near the window flange - and may give you a good clean section to weld to at that end.

Well... it started life at Pierre's Z... saw it in 2001 at the Motorsports Auto Show. The best looking Z Convt. conversion I had seen. The body lines were beautiful..

Missing dovetail on the passenger door, photo 150. Also the rubber weather strip under the door. They weren’t there in 2019 when it was last on BAT. I just remanufactured the early pre 1973 dovetails for my 1970/71 240Z as they were no longer available. Also did the plastic grease reservoir for the steering rack and the plastic cover for the battery. The Vintage Z cars were restored with parts that were available at the time, 1997/98; not always period correct parts but they did the best they could.

I'm not planning on putting the original distributor points and condenser system back on my 71 240Z. A friend of mine is telling me to use a 123 ignition and an MSD6AL. Good or? Years ago I installed electronic fireball ignition system on an old GMC truck that I still have. I've never once had a problem with that upgrade. I'd like to do the same thing with the Z. Anyone have experience and advice to point me in the right direction. Thanks in advance for the group's help. Restoration update as of 12-16-25.

And there is that thread on the valve cover breather and trying to find something that will convert it to AN or NPT to run a catch can hose. Seen infinite discussions about it, what folks did to change it, and even some fitting for RB engines someone found that fits, but still waiting to have the actual size stated.

The 1979 to 1983 matchbox distributor is a good upgrade.

Reading a story about Craftsman tools and found that they were owned by Stanley Black & Decker. Also learned that Stanley and Black & Decker had combined, back in 2010. Very much like Holley. Pretty soon everything everywhere will be made by a single company. https://en.wikipedia.org/wiki/Craftsman_(tools) https://en.wikipedia.org/wiki/Stanley_Black_%26_Decker https://www.holley.com/

Wasn't offended. Just surprised that you used a term from the 1980's!

I saw your comment @siteunseen Did you break a rule? 🔨

Just for closure I just ordered a set of 16 x 7 Panasport wheels with 0 offset from sportsandclassics.com About the only place I found, will be shipping out today. Super nice folks to deal with. Tad

200k seems like a stretch. I like it but it wouldn't be worth the cost of admission to me

Price is $1 plus shipping I have several spares leftover from disassembly of an N42 L28 engine. Exhaust manifold in very good condition - all down pipe studs intact ($1 plus shipping): Miscellaneous original engine parts (cam gear, head bolts, dip stick, oil pickup tube, oil pan reinforcement plates, etc. $1 plus shipping for everything in this box, or let me know if you just want one item to save on shipping. Stock pistons (dished) and rods $1 plus shipping: Two pairs of L28 engine mounting brackets ($1plus shipping for each pair). Alternator mounting brackets $1 plus shipping for one upper and lower pair. PM me with questions. ----Garrett

Good question - these are the standard sized original equipment pistons. If anyone has interest, I can take the time to confirm with pictures of measurements, or further pictures showing condition, etc.

Price for the set is $400 for this complete set of seat belts Complete, original Datsun 240z seat belt set from 9/70 in what appears to be very good condition. The webbing is is excellent condition. Chrome looks very good. Buckles are fully functional. Even mounting hardware is present! PM me with questions, additional picture requests, etc.

Bright light and a magnifying glass will tell you a lot. Inside of the cone at the end of the metal line and outside of the cone down the hole. You might see a crack or deformation. You could even polish the surfaces if they look rough. Also polish the surface that the fitting rides on. It needs to be smooth so that the fitting can apply even pressure across the bell shape at the end of the metal tube. Focus on the surfaces that make contact. The threads are only there to apply the force.

Cast impeller water pump: https://www.amazon.com/Aisin-WPN-013-Engine-Water-Pump/dp/B008EEZ2XY

I would still pull that water pump to see if it has the stamped steel impellers . May have some rusted away or broken as found on some. That would solve most of it if bad. Replace with cast iron type pump.

A cloth buffing wheel with fine polish compound on my hand drill. I will show a picture tomorrow. I have a bench mount buffing wheel as well that I use to polish all of the window frames, but the knob is too small for that.

I'm happy I could gift you a copy of this manual, for all the effort you put into the whole Event. If you have the missing pages, you can maybe email them to me and I can try to complete the book with the missing pages for you and me. That would be great. Or to just have them digitally would be nice too. Thank you for your support too and for all the good memories made in Japan :-)

Probably need to put some thought into replacing the short lines. You need to do an evaluation of what condition of the parts you’re working with.

That's the first Z conversion I've seen that I like. That said, I'd like it even more if I didn't know it is (or was) a Z.

I have been using that bosch relay in the photo since 2012 and no issues. Plugged in a go. The bosch relay was used in the first 280Z in 1974. Datsun used a Bosch L-Jetronic system for the first 6 months of the 280Z production And Hitachi copied it. That is why a lot of Bosch parts will work on these efi systems. I think @Mike had a bosch system in his attic once. I posted an ebay link back in 2018 and it still works😄 https://www.ebay.com/p/77006951

What changes did he make to get all the plugs firing evenly?

I got the rotary replacement kit from the Z Store (ZStore.com) but not sure if they still have the kits.

I should have something in a donor part if you decide to go that route.

While it looks nice and will make a good starting point why was the color changed to a non Datsun Z car color? The late Paul Taylor's 240 has emerged from the shadows and is for sale @ Carolina Muscle Cars for 125K.

Okay, the body harness has been stripped. I am very glad I didn’t try to use this thing. It’s melted / burnt in two places and has been messed with and rewrapped in three places. The next step is to compare this to the diagram and see what the story is.