Electrical
Anything about the electrical system on a Zcar.
3,454 topics in this forum
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71 wires ID
by timsz- 1 follower
- 3 replies
- 930 views
Does anybody know what these wires are for? I didn't have them marked for some reason. I can't find the other half either. They came from engine bay area. The red with white stripe in the middle is a little bigger than the red with yellow stripe and the red with blue stripe wires. I don't see them on the wiring diagram. Thank you very much
Last reply by timsz, -
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- 1 follower
- 6 replies
- 1.2k views
I can't remember what this is for. Can't find it anywhere, books, etc. Don't have time to look real hard. Thanks. It's a toggle and has an on, off sign.
Last reply by timsz, -
- 13 replies
- 2k views
In preparation for re-assembly of "Buttercup"---1970 (7/70 build date) HLS30-07032 919 Yellow 240Z. :classic: Fully restored side markers. NOS headlight assemblies with original Koito bulbs, NOS turn signal assemblies, NOS license plate lamp, NOS Dome lamp, NOS Inspection lamp. Years of searching and collecting for this----had to share a photo of them-----I'm excited! Jim D. 'Zup"
Last reply by TomoHawk, -
- 1 follower
- 6 replies
- 3.2k views
My 280Z was due for a roadworthy inspection so I was checking the lights and noticed the front indicators were not very bright. I never paid much attention to them before because I was planning to switch to 240Z lights when the 240z bumper and air dam were fitted. I still have not decided on the type of air dam yet so these turn signals will be around for a while. After dismantling them it was clear why they didn’t shine very bright. 1. The chrome reflector was so badly corroded. The chrome layer was falling of the metal plate and the metal plate was rusted. 2. The lens was covered in red and black over spray from the PO paint job. Considering the effort required I 
Last reply by Patcon, -
- 7 replies
- 4.2k views
I just refurbished an old breaker plate and took a picture of all of the pieces laid out in the order I took them off, in proper orientation, except for the bottom spring plate bearing holder, which is upside down and opposite the way it would go back on. But it's obvious how it fits when re-assembling unlike some of the other parts. I spent more time trying to get the circlip back in place than anything else. I'll devise some sort of jig before I try to put another one back together. Just posting for the record for those who get disoriented while taking it apart. I always do.
Last reply by Careless, -
- 2 replies
- 6.8k views
Does anyone have a nice wiring diagram for the '78 280Z headlamp circuit, showing the switched grounds? I had a "professional" install new headlamp connectors, and the dummy got the wires backward, like a new car has, with a common GROUND, Instead of the common hot wire and switched grounds. I'd like to show a good wiring diagram, showing the switched grounds... The diagram in the FSM is nicely drawn, but doesn't show the switched grounds, so you easily mistake that the headlamp switch is switching the +12V feeds.the complete wiring diagram I have is apparently too complicated. thxZ
Last reply by TomoHawk, -
- 1 follower
- 16 replies
- 2.4k views
Hello, Thank you for your thoughts. Here is my problem... the dome and map light aren't working. bulbs are good. When I put a probe to the map light harness it tells me that one feed is connected to positive and one connected to negative , but I get no voltage. For the dome light, the probe is telling me that all the wires are a negative feed. that really shouldn't be that way. Any thoughts would be greatly appreciated. It's a late 260Z automatic. Doesn't everyone love electrical issues . Thank you, Scott
Last reply by Kurbycar32, -
- 2 followers
- 61 replies
- 10.7k views
I recently completed a headlight relay upgrade, but I did it differently than the traditional approach. It's a little more complicated, but I think the results were worth the effort. Basically, I used four relays instead of two so that each filament has it's own set of contacts and high currents are not shared on the same set of contacts. While I was at it, I also modified the headlight switch to connect to ground instead of connecting to power. This enabled me to reduce the number of wires needed run to the relay block. Advantages are: Uses the original fuses in the fuse block and does not require additional wires run from the battery. Original fuse block lid print…
Last reply by TomoHawk, -
- 2 replies
- 2.8k views
After literally several years of searching, I recently managed to purchase an unused set of European (UK) specification headlight bowls (this year’s holiday spending will have to take a hit because of it, though). Unusually for a UK example, most of the metalwork on my car is in good condition, but for some reason the existing headlight bowls were badly corroded and un-restorable. It may be to do with the fact that UK roads are often salted in the winter, which does not do the metalwork much good, even after a couple of seasons. I thought there was a post on here which discussed the Koito headlight units, but I cannot find it, where there was possibly a date stamped…
Last reply by jerz, -
- 2 followers
- 5 replies
- 1.5k views
Hey gang, Wanted to share this story. It's a great FYI. And it's not mentioned anywhere to check as a possible failure. We have been battling a crazy distributor problem for the past month. First the 240z began to slowly run horrible to the point where it just wouldn't stay running after starting. After about a week of troubleshooting, checking compression (124-128psi), checking valves (a tiny bit out), Checking timing (dead on), Checking for water in the gas (nope), replacing the coil, and lots of cussing nothing. One thing we didn't check was the points... hmm, why should we they were replaced only a month earlier. They look fine. Might as well check with the feele…
Last reply by 240260280z, -
- 4 replies
- 1.5k views
My Z.hit F 250 pick up in the parking lot. Anyone know where I can get a side marker light?
Last reply by ktm, -
- 1 follower
- 9 replies
- 1.2k views
My brake lights dont work at all. All other lights work. I have power in the brake light switch behind the pedal. And power up to the blinker switch. I cant find power coming out of the blinker switch. Does that mean that the blinker switch is the problem or could it be the hazard switch (doesnt the power goes from battery-fusebox-hazard-brakeswitch-blinkerswitch and back to the tail lights). Could someone confirm./Andreas
Last reply by moelk,
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