Electrical
Anything about the electrical system on a Zcar.
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Hi Folks, My alternator failed and left me stranded yesterday. Oddly, the voltmeter in the dash was reading 16V and the red light didn't come on to warn me of any impending failure. I have a 77 280Z. The alternator currently in there includes the voltage regulator from a previous replacement / swap - this one is about 5 years old. Then red light in the voltmeter is good - it lights up on start and goes out after starting. So I'm wondering - when I replaced the alternator the first time (and bypassed the original regulator), did I render the voltmeter useless?
Last reply by Zed Head, -
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Please help! I just bought a 72 240Z I have a lot if work to do. The engine is seized from sitting for years and while I'm patiently waiting for the mystery oil to work I decided to try and figure out why the radio does not work. I removed it today and found it was completely disconnected. There is a antenna plug , a 3 pin connector and 2 loose wires ( red and blue ) please help? I think I found a factory connection for the 3 pin, although I am not sure where there other end of the fuse link is. Is it power or ground? And where are the loose red and blue wires? Key on power? And constant or ground? Thanks in advance
Last reply by JSM, -
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It isn’t new info, but it looked like a good supplement to what’s available about alternator replacement: http://woodworkerb.com/home/datsun-240z-rebuild/datsun-240z-alternator-upgrade
Last reply by Patcon, -
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I don't use the rear defog grid and I always fasten my seat belts, so those two warning lamps aren't needed in my car. In stead, I've already re-purposed the defog switch for the spot lamps, and I don't know what you could do with the seat belts lamp- any ideas? Maybe something like an switched auxiliary 12V socket, a switched USB charging port, or a warning for the lock-up torque converter... A computer CPU-fan supercharger? ? And so, I'd like to re-label the blue defog lamp face to read "SPOT." Can you get clear plastic faces, or would it be easy to make them? then, you could use a label-maker with clear labels to put new wording on the lamps. You may eve…
Last reply by TomoHawk, -
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Hi, I try to find out how I can add relay for '75 280z. When I googled, I only find this one might be accurate info. http://forums.hybridz.org/topic/91938-headlight-relay-for-260-280/ When I trace FSM headlight diagram looks like this. I'd like to add two relays. I'm not sure this is the correct way to add relay. Could you give me advice? Thanks in advance, tamo3
Last reply by Zed Head, -
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happy days. I finally found why my brake warning light was on all the time. after fixing and replacing nearly every part of the system, it ends up the coil in the control relay melted, leaving it stuck on. the relay was the one under the passenger seat. good thing it didn't ignite when it melted, though then it would have been the prior owners problem... I've obtained a new relay from autozone, so i'll be designing a replacement circuit to replace the relay. (since this relay is no longer available...) yay
Last reply by Zed Head, -
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Had an issue with this 77 dizzy with having the timing maxed out in the advanced settings just to get to stock specs . Come to find out that the vacuum advance arm was not attached to the breaker plate. So the screw was in place but not attached to anything. This put the breaker plate in the wrong position - retarded in regards to the pick-up position. can someone tell me what this other adjustable plate does- see pic. It was adjusted all the way to one side. The horseshoe pick up or whatever it is moves with it, it I can’t find any info in the FSM about it. What does it do?
Last reply by EuroDat, -
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After the 280zx alternator upgrade with Dave's adapter, the ammeter never seemed to move. I didn't (and still don't) know if it got burned out or if the mod just makes it useless so it doesn't move. Before the upgrade the ammeter needle would jump around if a turn signal was on for example, no jumping after the mod which I thought meant the new internally regulated alternator was working better than the old one. A few weeks ago it wouldn't turn over or even click. Dead battery. I figured maybe I'd bumped the overhead light on, it's happened before. It sat while I did some work on the AT. Couple of days ago started it with the jumper battery. I figured I'd see the amm…
Last reply by Stanley, -
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I need to remove the four wire tacho for a conversion from inductive to +12v trigger as i am currently installing a megajolt ignition setup. What is the easiest way to remove the tacho from the dashboard, can i just remove the locking nuts on the back of the tacho from under the dashboard and then pull it out from the front?
Last reply by Mark Maras, -
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1977 280z It lives in the dash between the Tach and Speedo, I can't find anything on the schematic with same colour wires.
Last reply by Captain Obvious, -
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I started a short drive, in one mile I noticed the tachometer was bouncing around, especially on acceleration. At four miles I hear a lot of backfiring on engine braking. I stopped at an intersection, then the engine cut out and couldn't be restarted. I had full pressure, but no spark. It was flatbedded back home and now the fun begins. I'm confused where to start since the ignition has undergone an electronic upgrade using a Mallory coil and distributor. There are two ballast resistors one with three contacts and the one with two contact just below it. One wire from the upper (three contact) resistor connects to the lower resistor. The other end of the lower re…
Last reply by Jeff Berk, -
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First thing, I've done a bunch of reading and searching and at this point I'm hoping someone else has had a similar problem and can narrow the options down. The problem, rear lights are possessed. Headlights work, high and low beams. Front turn signals work, left and right. Rear right turn signals work. Rear left work but are dim and turn off when the lights are turned on. Also all left rear bulbs flash including side marker when turn signal is turned on. Right side flashes fine except the parking light turns off when turn signal is turned on. I've taken apart both the multi switch and the turn signal switch to clean the terminals. I've read maybe the hazard swit…
Last reply by newbzee,
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