Electrical
Anything about the electrical system on a Zcar.
3,454 topics in this forum
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Hey guys I just got back home after doing some work on the 260z. When I bought the car it did not have a fan or fan clutch (honestly no idea why), so after I finally got the car running and the brakes and clutch in order my last step was to install a fan, the prices were higher than i expected so I just decided to do a electric fan setup. So I bought a Hayden electric fan relay wiring kit, and a small 12inch fan (with plans on adding a second one soon, I just really want to drive the car. I believed I had everything wired up correctly, relay to ground and positive battery terminal, one wire to ignition coil, one wire to thermostat, and one wire to the fan (fan was grounde…
Last reply by Racer X, -
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So this is an odd one - I opened my engine relay bracket (the one under the black metal cover on the passenger's side) to clean the teeth on the relays and noticed one relay wasn't plugged in and there doesn't seem to be a connector for it on the harness (top middle). Any ideas what's going on here? The car runs as-is but I'm just curious
Last reply by SteveJ, -
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Hi Guys... my 73 240z had a fuel gauge working fine. Last month it went intermittent on me, reading very low, then finally stopped. So I checked the fuel level sending unit and yes, it was leaking from the top connection. I figured this was also why I smelled gas when the tank was about half full. So I bought an OEM replacement sending unit and figured a 30min job to swap it out. I drained the fuel tank, got the old one out without dropping the tank and hooked the new one up. Two days later, dozens of searches and hundreds of pageviews and I still can't get the gauge to read anything. I'm seeing the fuel sending unit reading a low fuel level with an Ohm meter, so t…
Last reply by Captain Obvious, -
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Hey guys, My old alternator failed, so I decided to upgrade the alternator to an 80amp alternator from zcardepot: https://zcardepot.com/products/alternator-high-amp-80-240z-260z-280z . I did some research on how to rewire some of the components to accept the new alternator, and this is all I could come across. He used the same alternator I got for his 240z. Is there anything specific differences between the 240z and 280z that I need to watch out for regarding alternator wiring? I am not sure how I should setup the wiring, besides what I found from that forum post. I figured I would just copy what he did, but any advice would be wonderful so I don't fr…
Last reply by Zed Head, -
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I have recently put a new head gasket on my l28 and after I put it back together it won't start I thought it was the timing chain out a bit but I took the timing cover back off and that all lines up. All I can think of is the distributor because the distributor and the oil pump sharft can both move separately when there out of the engine and I am not sure how to get the distributor back to firing on the 1st cylinder at the right time. Any help will be much obliged
Last reply by Zed Head, -
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Just rolled in anew 71 240 and am looking it over.. what is the green circuit board on the firewall with some black cube plugs???? anyone seen that?? should i leave it out cut it out before trying to start the car?? it has not been started in 13 years.. also this weird 6 prong box on side of car,,, nothing going to it,, any clue on that???
Last reply by grannyknot, -
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I have had a few ask if there is any problem running the 123ignition with the old tachometer. To my knowledge there is no problem. However, if you do need to have your tachometer repaired there are two companies that do the conversions to add modern electronics so they will work with the modern ignitions of today. I had mine repaired in 2006 by JDO in the UK. I can't say enough good about them and their service. They are: http://www.jdo1.com/ and http://www.nisonger.com/ If you have any issues and fixes post them here.
Last reply by rcv, -
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I have 1974 early 260z , I just installed a new datsun voltage regulator and what is next to it is a large box that says 3a fuse link. it is located just behind the passenger side headlight next to the carbon canister .does anybody know what this is for ?
Last reply by gogriz91, -
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Don’t even know what to call the part , but it’s cracked and don’t know how important it is . Can I used an earlier metal bushing ?
Last reply by Captain Obvious, -
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Has anyone found a good cruise control for the 240Z. I installed one on my 1972 years ago but it quit working and am looking for a good replacement after a recent restoration.
Last reply by Derek, -
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took the car out for a drive, while on the road constant speed smooth highway, the ammeter starts going nuts, 60+ then about -30 amps. then settle down then starts up again, lasting several seconds. I heard NO odd noises (but a 70mph prob would not hear over road noise anyway). No other indication of problems (radio fine, lights seemed normal (I turned on the HL to soften the charging down to about 30 amps indicated). I was not far from home so just disconnected the VR and drove on home, no more intermittent anything, just a constant to be expected discharge rate. Installed a new backup VR that had been tested on a running engine, same thing random wild swings b…
Last reply by Dave WM, -
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First of all I’d like to thank all of you who have added so much value to these forums. I’d be lost without the information I’ve gathered through HOURS and HOURS of reading and taking notes. I’ve spent the last few weeks working on the lighting. After reading countless threads and making many mistakes I think I have finally got the mock up wiring ready for final crimping and wrapping. Thank you electrical gurus for sharing your knowledge so freely, it’s been fun putting it all together. Question for the group, I’ve installed relays on the headlights and park/tail circuits to reduce the load on the switches/fuse box. All bulbs with the exception of headlights and inter…
Last reply by Trnelson,
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