Electrical
Anything about the electrical system on a Zcar.
3,433 topics in this forum
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I’ve seen a ton of people switch to LEDs for their instruments, and I’ve seen a bunch of people say not to because it can be too bright. I’m also saw someone worked out a way to make a dimmer that works for LEDs. Well, that may not be necessary. In trying to locate that how-to thread I stumbled upon three dimmers for LED instrument lights: Autometer https://www.autometer.com/led-lighting-dimmer.html Classic Instruments https://shop.classicinstruments.com/leddim New Vintage USA https://newvintageusallc.mybigcommerce.com/led-lighting-dimmer/ I’m going to dig into reviews on these and see if any of them stands out. I’m guessing there are others…
Last reply by billgtp, -
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For some reason in the past, I came across this part number for a Sentra Intermittent Wiper Relay part number: 28510-1M200 It appears as though it might still be available. This is the wiring diagram from the EL section of the Sentra FSM: Note that it is 7 wires. Edit: Oops, I finally noticed that there is no pin #4. That fits an observation that I made after I posted this. I'll have to see if this is a fatal flaw in my effort. Here is pin out on the 73 Intermittent Relay: It seems pretty close to the same. I just have to trace out the wires better for the 73.
Last reply by SteveJ, -
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I have a 73 240Z restoration project underway. I'm currently trying to install a dash overlay. To do so I have to remove the hazard warning switch knob. It's one of the green pull switches. This may sound stupid, but I can't figure out how to get the knob off. I tried pulling, unscrewing, looking for a set screw, looking for a release button on the back. Nothing. It can't come out the back with the knob on. I'm afraid it I pull any harder I'll break it. Any suggestions?
Last reply by z3beemer, -
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Hey Guys, Back again... On the last gauge to fix on the car. Anyways, the temperature gauge does not work on my 1977 california spec 280z (Oil pressure does). It did work when I originally got it, but one day I started the car and it just did not work (2 years ago). Ok so, I grounded out the bullet connector on the t-stat housing and the gauge did not change. So that ruled out the sending unit. I got right to it and pulled everything needed to get to the gauge and pulled the gauge. Simple and easy. Ok so I first wanted to see if the whole gauge was getting power., and it was. I found that the bottom left pin in the photo was supplying 12V. Sweet. From …
Last reply by ckurtz2, -
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Hi All,= What is the procedure for bench testing horns out of the car? It's a '72 240Z. I bought 2 supposedly working, rebuilt horns from ebay and want to test them prior to installing. I tested both horns individually by connecting their spade connectors to 12.7 volts and grounding the mounting brackets. No sound on either. The connections are all very clean (by me) and I I measure 12.7 volts passing between the spade connectors and the grounds. What am I missing? Thanks!
Last reply by Jughead, -
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Somewhat as a follow-up to my earlier thread: I purchased an SMP S847 socket. I tested it out in my 240Z, and it seems to fit just fine.
Last reply by SteveJ, -
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A friend installed a Pertronix Ignitor I into his 240Z, and he contacted me for help since he could cruise fine at low RPM, but whenever he tried to get on the gas, it would stumble and cough. He thought it might be a coil impedance issue so he tried various coils but kept having the same issue (and sometimes even worse performance). Since he has been wrenching on Z cars since the mid 80s, I figured he had gone down the wrong rabbit hole at some point. I loaded up the rescue wagon and headed over to his place. The first thing I did was connect an oscilloscope to see if I could pick up an obvious miss. The scope left me with the impression that something wasn't happen…
Last reply by SteveJ, -
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So I have a pair of euro taillights I want to install in Lily. I know they require some rewiring. I searched the forum but couldn't find a relavent thread. Maybe the librarian can or someone else can chime in on whats required
Last reply by Patcon, -
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In my never ending quest to find parts that no one seems to be looking for, I finally found what seems to be a good replacement for the single filament (1156 style) bulb sockets for the tail lights and reverse lights. The Dorman 84808 fits snugly in the tail light housing. You can find them on Amazon and Rockauto. I'm going to get a Dorman S847 to see if it's a suitable replacement for the 1157 sockets.
Last reply by SteveJ, -
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Many moons ago I promised to describe how the gauges work... So in order to understand how the gauge system works, I think it would be a little easier to first understand how they DON'T work. I think everyone already has a good handle on this simple system, but it's an important place to start. Here's a pic of a simple (uncompensated) gauge design. Wrap a heating coil around a bimetallic strip and mechanically attach that strip to the linkage of a gauge needle. Flow current through that heating coil and to a sender unit who's resistance reflects the level of whatever you're trying to measure (temp, oil, fuel, whatever). As the resistance of the sender unit …
Last reply by Captain Obvious, -
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When removing the antenna cable from the back of the radio, the male plug broke. The plug appears to have a capacitor with the natation “180PF +-10% 50V”. What purpose does this capacitor serve? Thanks, Keith
Last reply by Captain Obvious, -
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I have a 280z that sat for 5 years. I got the car up and running a few weeks ago. I failed an emissions test (am planning on getting classic car insurance which by passes emission test requirements in AZ) (idk if that has anything to do with my issue but figured I’d mention it.) the car was running fine and I didn’t notice any issue. I had to turn the key a few times to get the car to start but it stayed running. I drove it around, got an oil change at big o tires. When it came back and after a few new body parts and paint (which I had to remove my tail lights for, but reinstalled from what I can tell correctly) the car now won’t stay on. As I drive the car around th…
Last reply by Zed Head,
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