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z240

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Posts posted by z240

  1. There is nothing to be gained by completely changing the harness. With no electrical or car wiring experience, you will have the the same or more issues trying to adapt a generic harness to your Z verses just learning with what you have. Spend your time learning the stock harness as you replace it in the car, then upgrade it a piece at a time, as needed.

     

    There is plenty of discussion here about upgrading the harness. Headlight relays, ignition improvement, better fuse blocks are common areas of concern.

  2. The charge light is a nice to have, but knowing the voltage is all you need to determine if you are charging or discharging. A fully charged battery is at 12.6-12.8 volts, your alternator should be able to produce 13.8 - 14.2 volts, you'll see it when you first fire up what's "normal" for your alternator. Then if the voltage falls below 12.8, you're discharging. Anything above 12.8 and you're charging. That's the beauty of the voltmeter. Running voltage PLUS knowledge of charge/dis-charge.

     

    As to connecting a thin wire to the splice where the two white connect, just tuck the bare end of your new thin wire under the nut/washer you're using to connect the white wire ring terminals. Wrap it clockwise, the same direction as you tighten the nut. Better yet, crimp a ring terminal on the end of the thin wire. Chose a size with the same hole size as the white wire ring terminal and join them all with the same bolt.

  3. Ah good, you have a gauge.

     

    Easy to tell which of the two black wires is for +12 and which is for ground. Just hook them up to a battery, first one way then the other. When the gauge reads +12, you have it right. Then hook up that black to the thick white old ammeter wires. You may have to connect the other black wire to ground.

     

    Ah, just went and looked at a gauge. There is one black wire with a red band around it need the connector. Dollars to donuts that's the +12 wire. I'll go do the battery test myself to confirm

  4. Yup, that's right! EZPZ.

     

    Connect them with a short 5mm or 10-24 bolt and nut and insulate VERY well. Use a big piece of shrink tubing ideally. Connect in a short piece of 18 guage red wire with ring terminal and connect that to the voltmeter. There is also a ground wire on the volt guage. Lots of plain black wires in the harness in with the guages that you can use.

     

    Tricky part is finding the volt fuel gauge from a 280 and swapping its guts into the 240 Amp/Fuel housing. Actually its simple. The swap, not the finding...

  5. Thanks! That's help to visualize it. Ithe screen looks smaller than I envisioned. I agree it should be higher than you have it in the picture. I even thought of angling the face upward but that complicates the installation

  6. I can offer you a stock smooth R200 cover. I'm coming to the Vancouver Datsun show and shine this weekend (sunday) at ship builders park if you want to meet me there. Yah, road trip....

  7. The 77-78 doors have a different little bracket on the back of the door lock cylinders but other than that they are the same across the 70-78. Well ignoring the single sided/double sided key difference on the very early ones. And I suppose the two different key cross sections (mirror images) between the early and later (roughly 240/280 boundary?)...

     

    The 280 steering column is "different", but the diameter where the ignition lock assembly is located is the same as 240.

  8. Rear main seal leaks can be tricky to see. Mine dripped a line of oil from the base of the seal down the block and to the area at the back of the pan behind the plate. The trans bellhousing was clean and dry, none made it into that area, it went straight down, THEN it spread all over the bottom of the car from there. Great rust proofing.

     

    The seal was leaking alright, when I went to "pick" it out, expecting a bit of a fight, well the dang thing was loose. It was spinning in place. It came off in my hands. How that happens (maybe 50K miles on the rebuild) is anyone's guess. The leak was not between the crank and the seal lip, it was around the seal and the block!

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