Electrical
Anything about the electrical system on a Zcar.
3,450 topics in this forum
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- 6 replies
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Hello, I just bought a 1975 280Z. The starter works when I jump it, but not when I turn the key (ignition). I verified the is no power coming from the wire (connected to the starter) that is supposed to turn the starter on. Also, the fuel pump turns on and pumps fuel, I hear a cylinder under the clove box operating. All fuses are not blown and the two fusible links are hard wired. Any ideas of what might be bad or what I can check up stream from the starter starting wire that might be bad? Thanks, Robert
Last reply by SteveJ, -
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- 4 replies
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Hi guys I need some help here, I have a 77 280z and I just recently noticed that not all of the pins on my ecu match the ports on the harness connector, the part number on the ecu is A11-601 but why am I missing connections?
Last reply by Captain Obvious, -
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I have been slowly bringing my 1970 240Z back from the depths of despair where its previous owner left it and now have it running and stopping well. One area that continues to be a challenge is the flashing lights at the corners, as not all of them do. Here's the situation at present: Brake lights work both sides Running lights work all corners and front and back Head lights work Back up lights work Turn signals- Left (driver side) work both front and back, and the little clicker on top of the flasher makes a clicky noise. The green tach light illuminates as expected. Right (pass side) only the front works, the back doesn't, and there's no clicky noise from the clicker on…
Last reply by SteveJ, -
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Hi All, I'm looking for as simple as possible alternator for my '73 240z race car. I know Motorsport Auto (The Z Store) has one at a reasonable price, (Motorsport! SALE! 60-Amp Alternator Upgrade Kit, 70-73 240Z - The Z Store! Nissan-Datsun 240Z-260Z-280Z-280ZX-300ZX(Z31/Z32)-350Z-370Z Parts) which I will order it this week if I can't find another, but I'm hoping I can pick one up locally and install it right away. Anyone know what model Bosch it is that they use? Or, one that I can just bolt in with the same brackets and use one wire to the batter? Thanks Bill Oakes
Last reply by Bill.Oakes, -
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Hi. Kind of hesitant to post this cause it seems rather dumb but . . . I'm restoring a 1970 car. Was the t/s flasher secured with any kind of mount? When I bought my car the flasher was just stuffed up into the pedal box area without any kind of mounting. Haven't been able to find any references or drawings. If anyone has a pic showing the stock mount/bracket that would be very appreciated. Thanks for the help.
Last reply by chuck r, -
- 20 replies
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I need to get this straight... Are the 240z's pre-wired for driving lights? I was taking apart my dash and noticed a couple of unused wire connections that were taped to the harness. They are very close to the two dash indentations to the right of the steering wheel. Anyone know what these are for? I also seem to remember seeing a few unused connectors near the front of the car as well.
Last reply by Taz0162, -
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Hello, ZCar guys, I have a copy of the service manual that I want to post a copy of, how do I do it ? This is the manual that allows you to test and repair the ignition system for the 260Z and maybe the early 280Z. Note, the other Service Manuals do not have this testing info, they use the ultra rare test box(Dealer only), not how to test the system with a mulitmeter or O scope....This is the reason at first that I was going to change the 260Z system for the later 280ZX system....Now I may not have to....
Last reply by DRBall, -
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This post is mostly for archive searchers like myself, I couldn't find the size of battery I needed so pm Steve to get the answer. 24C is the OEM configuration. But if you want the POS terminal out from under the access lid, then get a 24F. Same size but poles are reversed. Chris
Last reply by pbarcher, -
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I have researched threads here on what battery voltage should be and now I am more confused than before. I have a 77 280. We all know it is externally regulated. I get 13.76 volts at the battery during idle. Now where I get confused is when you increase the engine rpm's shouldn't the battery voltage also increase? Iv'e read here that it should be 13.8 at 2500 rpms and I also read here where it should be 14.7 at 2500 rpm's. Which is correct? My battery holds pretty steady at 13.7 volts through out the rpm band, no changes. Help me understand. Thanks
Last reply by rcb280z, -
- 8 replies
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Hey guys, I posted a while back about the alternator upgrade that the PO had done and based on blue's tech tips, the wiring for the externally regulated alternator was wrong but the car was running fine. Based on blues diagrams, the PO had jumpered wires 5 and 6 from the alt. harness together where blue said numbers 5 and 1. So i reverted back to the way it was originally and now I am overcharging, showing about 14.9-15.1 volts, is running that much voltage going to cause damage? I know the stock voltage is supposed to be 13.8-14.4
Last reply by SteveJ, -
- 3 replies
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I have a 76 280z with a Z specialties one wire alternator. When driving the car with no other electrical load, sometimes it will chugg/hesitate at around 2500 rpm, if I stomp on the gas it stops the hesitation. But when the headlights or the blower fan is on, it wont behave like this. Could this be a bad connection somewhere? EDIT: Another explanation I could think of is with the other electrical load, the temp rises to about the middle of the gage because of the increased load on the alternator. The temp sensor is new. Could the increase in temp make it run leaner if it was hesitating from running rich?
Last reply by llouie, -
- 9 replies
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Hi guys. I've searched the forum and I cannot find a straight forward question as to a source/manufacture of an OEM equivalent ignition coil for a stock 1971 (Series 2) 240Z with points. Please do not suggest switching to an electronic ignition because it's not going to happen. I am keeping my points. It needs to look and perform like stock. I will be using it with a NOS Nissan ballast resistor. It can be a little hot but nothing that is going to negatively affect the rest of my electrical system. Thanks, Matt
Last reply by marvelous240Z,
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