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Ok. Replying to myself in order to hopefully help someone else out in the future. This was SUPER painful to work out but the correct measurements were. From back to front: Rear of rear diff/lower control arm mount to front of rear diff/lower control arm mount: 456.5mm. This is 465-15+6.5mm. Next is front of rear diff/lower control arm mount to gearbox mount: 1434mm. This is 456.5+15+962.5mm The last one is from the gearbox to the strut towers. Mathematically its 2387.8mm..... This is the number that doesn't work. It comes from 456.5+15+1585+331.3. With my car however this number is closer to 2401mm. For the above 4 points the vertical reference is from rear to front. 285mm, 69mm 86mm, and 130mm. (To underside of front frame rails). I've mounted the car, its very stiff and ready to be deconstructed ....

as @Zed Head said, pull the spayed ign. Off the terminal and measure the voltage. Black to Gand and red on the spade turn the key to start. I think that he's just answering Yarb's question directly. Seems like you're getting voltage/current to the starter solenoid. Leave the wire off of the spade terminal on the starter and use a jumper wire or a tool like a screwdriver to connect the main battery connection to the spade on the solenoid. You can also run a longer wire directly from the battery positive for convenience. The starter should actuate. If it doesn't then the solenoid contact has probably crapped out. There will be some small sparks and the starter will work correctly otherwise. Make sure the car is in neutral and nobody has their fingers or other things by the fan belt. If you hear a solid click from the solenoid but the starter motor does not spin that's a sign that the starter motor has failed. Yout starter looks pretty crusty. If you try this jumper wire method and everything works then you have a problem with the wire from the ignition switch.

Managed to find a couple of the BRE cast aluminum adapters recently. https://www.ebay.com/itm/317146279997?_skw=Datsun&itmmeta=01K22V8ZHVKDFD1YZ2R67FYVVG&hash=item49d764303d:g:5ZgAAeSwYvNokRsm&itmprp=enc%3AAQAKAAAA4MHg7L1Zz0LA5DYYmRTS30kCoKfIwvB5xxhwqLfQsN2nCxk2lPQjX3YKVMYwrxYpvqUj44P448Su9W0IOyv9xeIAWjVrCeP8Fr2QU1TY9e7pNLlaT0BG9tj5zLexgY7byGGuH2yDK0OiyU3vR5fkXWKKN3IQdcSYmXNnnPXjRhXS2So%2FSPgQZXBaYiIZLQCVX3X7Vna%2FqJOosiRjsA69htfeltceq2Cf7k2gmZCY6J8H8hKNyQdK0sBnsetXbfjln%2FMlmTzAAStHKN2erVuANzBT9%2FZ1nAhivjZ33R04f%2B9W%7Ctkp%3ABk9SR4z5o9uQZg

The recommended prices on the website range from $1235 to $2665 to $3380 in US dollars. I have always owned Seikos and really like them but I don't wear a watch like I used to. As much as I would like to get one, they're too pricey for me. I can't see spending more than $500 for a watch / chronograph (old school) like that. Hell, I could get a Heuer for $3400.

Meaningless

11.26 volts

Have you started to identify which contacts they used inside the shell? There are lots of different members within the family, and I'm not sure which ones they used. They are the split finger version and are not gold plated... Those two things you can tell from just looking into the connector. But beyond that, I haven't looked into it. And also within the family... There is JT (Junior Timer), and JPT (Junior POWER Timer), I believe the major difference is the inclusion of a spring (on the power version) to clamp the female contacts closed tighter. So if you're concerned with contact force, maybe you could "upgrade" a couple contacts to a JPT version instead of the original JT? Not sure it's even possible, but just a thought.

The tanks fit. What you don't say is whether or not you have lifted the tank all of the way in place so that it is hitting something. IIRC the last time I installed a tank (about 4 years ago), the key is to get the tank up high enough so that you can get the filler neck through the opening in the body. Also make sure you have the top vent hoses connected before you try to get it in place fully. After you get the filler neck in place, that will help hold the tank up. As for lifting the tank, if the car is on jack stands, this will do a great job of lifting the tank: https://www.harborfreight.com/450-lb-low-lift-transmission-jack-70262.html That way you can use your 2x6s to help get the tank to the right height.

Ahould i retard the timimg from 20 to 17 degrees and then adjust the fuel mixture in both su carbs? This are my engine specs.

To clarify above, the combination of the two metal bands and the mounting bolts are still leaving me 3 o 4 inches shy of being able to connect properly. Hope that helps.

OK after some down time I tried to install the new gas tank from S30. i have spent a couple of days wrestling with this thing. My problem is that I cant get the tank high enough to connect the two tank mounting bolts. It's almost as if they are too short. Obviously they cant be because they were holding up the old tank. Since I'm doing this by myself the scenario is that I'm laying on my back under the car trying to hold the tank up with one hand while trying to attach the mounting bolt with the other. It's not working. I've got a small wheeled dolly under the tank with some 2x6s stacked on it so I'm not having to lift the tank all the way off the ground every attempt. Any ideas from some of you smart folks will be appreciated. Rodger

@Mike Think we could fenagle a group buy? You are in charge of negotiations of course!!!

Ah, step on out you have gone this far! Educational purposes of course for the rest of us!!!

I’ve never had much respect for the Chilton or Climer (sp?) service manuals, once I realized they were nothing more than stolen excerpts from the real service manuals and how they claim to handle all Datsun Z models from 1899-2050 in one book. Talk about cherry picking and massive omissions I thought Now that the real manuals are available online, I rarely look at them. However, the other day, I got a Climer manual with a parts horde and happen to flip through it just to see if I was missing anything. I might have to eat my critical words, when I found a compilation listing of what seems to be ALL the possible timing options 70-78. “Maybe” they did a bit more than just decide which pages of the FSM’s to include. This was sparked (see what I did there?) by a Z friend with limited Datsun knowledge who was asking me about timing specs for his 71, telling me he looked on line and found really wildly varying numbers and couldn’t decide which one was right. Well, there you go. the list shows a large variation depending. PS. It also has a pretty high quality set of schematics for the various years and transmissions all in one place. I read most of the text! .

Yes, and yes. At first I wasn't able to find someone who would sell me just one (I often have problems loading mouser.com, arrow.com, and any other edgesuite protected sites. I am a hacker/bot, apparently) but it looks like digikey just loaded for me and I can have for $14 incl shipping

One thing I never skimp on is fire extinguishers. I'd go with this one for your Z. https://www.h3rperformance.com/products/halguard-pro-halon-clean-agent-car-fire-extinguisher-1-25lbs Not cheap but very effective. Love the registration tags, part of the cars history @Captain Obvious Mine still has the original license plates from when it was new in Roseburg Oregon in October 1970, found the original plate frame from the selling dealer Burness Datsun. Even got a copy of the original title from the DMV.

Good looking car! Love the color, put some orange on there and you've got a mini-917. I bought an all metal rechargeable from Lowes. It fits perfect (barely) in the tool bin behind the passenger's seat. I think this is it? But I don't remember the black handles. Mine are aluminum color. https://www.lowes.com/pd/First-Alert-5-lb-Premium-Rechargeable-Fire-Extinguisher/3822503

Sorry to hear about you and Janet's health problems but like everything else, if there's one person that always figures out a way it's you. So glad to hear from you! Cliff

Great to have you back on board, Phil. Your how-to articles, posted both here and on the Atlantic Z site, have remained an important resource for all of us Z owners.

You did a great job, with both the car and the build thread. Thanks for the update. We now have closure! 😄

Oh sorry, I finished it up, drove it a few miles, had a very small oil leak I fixed, timing cover bolt(s). The front brakes or hubs were getting hot, resolved that issue quickly. I've probably put 600 miles on the car since. It rides unbelievably smooth and quiet. There's nothing left to work on. I'm at a loss now, it's kind of a strange feeling. What a battle it was though, I really enjoyed the challenge for the most part, and I miss it.

One more vote for the Wesco Roadster Retractable belts. You definitely want the 11" extention. I used only the OE bolts all araound, did not requre the hardware kit.

Mine is a July 1970 and I believe it languished since........