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72 240 rebuild - Rebuild diary

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  • #46
    Lots of minor stuff happening but nothing "report worthy". I'll get the gas tank back in place in a day or two depending on yard work of course. Then i can take it off the rotisserie and do some fun stuff like install the engine. BTW - bought some 2019 Veloster turbo seats from a wrecker, great score, really pumped about them. Now I have some Datsun and Prelude seats for sale. I'll detail the install when it happens. One more thing - discovered that the clock was non-functional. Didn't really bother me but Laverne converts them to quartz so why not (another you might as well, sigh). Incredibly fast turn around, installed it this afternoon. It works!
    Attached Files

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    • #47
      Work continues - this is the fun stuff. Installed the gas tank and all the hoses - it would be a terrible job without the rotisserie! I kept the expansion tank and all the myriad of hoses. Considered re-engineering this setup but there was no upside so I kept it stock. The hardest part was getting the larger diameter fuel rated hoses. Note the tank straps - I made clamps for the straps, used heavy nylon tie down material. Won't corrode and you can tighten them down without stretching. The metal ones are made from unobtainium it seems. I like this solution. Also - fitting the fuel neck can be challenging. A heat gun really helped. With the fuel pump in place there's not much excess room back there.
      11 22 fuel tank.jpg

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      • #48
        Memorable day - my son helped to take the Z off the rotisserie and install the engine and Xmission.
        11 22 engine install.jpg

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        • #49
          Surprised that the 40 year old tires still hold air. Here's the engine bay - real purdy!
          11 22 engine bay.jpg

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          • #50
            I bought fuel rated hoses for the fuel tank vent system. Not easy to find - I've been impressed by the engineering on the Z, but the team that did the vent system was definitely sub par. You couldn't devise a more convoluted setup. Here's how I made the sharp 180 degree at the tank:

            12 13 fuel hose.jpg A bit of plumbing but no kinks for sure. And here's everything connected to the expansion tank:

            12 13 fuel hoses.jpg I'm going to cover that over with the panel and speak of it no more.

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            • #51
              1/2" copper has been a standby for many!
              Creative fuel tank straps! Not sure if they will pass a safety.

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              • #52
                I did the same for that 180 bend, but used a street (fitting) elbow to eliminate the nipple between the two elbows. Expect some blowback from
                Six_Shooter
                Former OZC Club member
                Six_Shooter for using copper.
                Eric Zondervan
                72 240Z
                11 Sierra 4X4
                14 Kia Rondo EX
                18 Audi SQ5
                18 Polaris Switchback XCR 800
                18 Ducati Multistrada
                65 Honda Moped

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                • #53
                  Just a heads up regarding the fuel tank straps with regards to certification. Those straps would fall into the category of " Insecure " which states: The means of attachment is unable to withstand normal vehicle operation or ( Here's the important part to take note of ) "is not at least equivalent to OEM standards". It's likely a a mechanic seeing those straps during a certification would fail the certification. You may want to reconsider those fuel tank straps.

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                  • #54
                    Metal supermarkets is a good place to go and get them to shear you 2 strips of stainless steel .070" thick x 1-3/8" wide, then bolt or rivet through them with your clamping brackets.

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                    • #55
                      Just in case you were not aware, Skillard makes a set of tank straps that are much safer and will pass a safety check.
                      www.skillard.com
                      Your build looks great so far!

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                      • #56
                        The comments on the tank straps are well received. Thank you everyone for both your advice and concern. I argued with myself about the best way to replace the severely corroded straps that came with the car. In the end I chose the nylon straps cut from heavy duty tie downs that exceed the tensile (breaking) strength of the thin steel ones, based on the rating stencilled on them and my admittedly rusty return to strength of materials calculations. And they will never rust like the ones that I removed. But as we all know you can't argue with city hall. To be clear I'm not suggesting that anyone follow my lead here.

                        Regardless, I'll be checking those straps every time I put the Z up on the hoist just to be sure, keeping in mind your comments. My real concern is stretch rather than rupture failure. If I did need a safety I'd likely have to find a mechanic with some hot rodding in his or her blood because very little on this Z is either original or stock, with lots of parts that I fabricated or adapted from other makes.

                        However - I don't need a safety to get tags for this car. To explain why I'm so certain - I bought this Z in1978. I have vanity plates (DAT240) from the 70's when they were supposedly "issued for life". A couple of months ago I wandered into an MTO office with my ownership - it has my name on it but the address is from several decades and domiciles ago - to see if I still owned the rights to those plates. I do (yay!). And the polite woman at the counter asked me (unprompted) if I'd like to renew the tags while I was there. She told me I'd just need proof of insurance and a credit card. I told her I'd be back in the spring - hope that she's right. I'll report back if spring ever arrives.

                        And now you know that my goal is to drive it this summer. Hmmmm.

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                        • #57
                          The posts made me reflect on what I actually have in the garage - the shell is 240 for sure, the block and VINs match, but there are lots of parts adapted from other Nissans and over-the-counter special parts like coil-overs, bushings, carbs, headers etc. Just to make it confusing there's also representation from GM, Volvo, BMW, Toyota and Hyundai chosen for functionality and / or reliability. I may have missed a few others along the way, but I'm thinking that this is a true mongrel. Probably not much different than a few of the club members cars and nothing that isn't on the web.

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