Electrical
Anything about the electrical system on a Zcar.
3,433 topics in this forum
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I'm trying to find the proper orientation of the marker lights on 73 Z. As you know they are thicker on one end and thinner on the other. I've look at numerous phots of z's and it seems to vary. Anyone know the correct orientation? Does the wider part go towards the front of the car of the back or the back? Are the front ones orientated differently than the rear? Thanks for your help. Didn't find an answer in the other postings,
Last reply by Racer X, -
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So, I decided I wanted to update the fuse box (it'll be one part of the electrical system plan), I designed one in Fusion360 and got it 3D printed by my brother in law (he's new to 3D printing and I haven't a clue about it). Here's what the result was. The back side didn't print real smooth, but I figure that's operator error. This is designed for full size blade fuses. I tested it with female spade connectors (snap-in) and a blade fuse. They fit and connect with a little tension. The mounting tabs/ears are spaced accordingly and are same general shape as the original (thickness might be a bit different.
Last reply by SteveJ, -
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I have a 6/71 which should have the earlier harness with the longer pig tail fuse box connections. Seems the PO mixed and matched some stuff from a 72 or later and I think I have a late 71 / 72 dash harness and short pig tail fuse box. As I start on the dash area restoral couple of questions if you don't mind. First, are there any major differences with the harness I need to worry about or as long as the fuse box matches the harness I should be good? Everything seemed to be working off dash / console except the radio and rear defrost but I know why. The rear defrost had the inline fuse holder broken (needs replacing) and the radio was something he just threw in there…
Last reply by Richie G, -
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The paper gaskets are too damaged to reuse so I'm wondering if I can use a thin layer of liquid gasket instead of the paper? The sealer would keep the horn from rusting up again the way the paper gaskets allowed but wondering liquid gasket might damped the vibrations when the horn is sounding off. Any experience either way?
Last reply by SteveJ, -
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My alternator recently gave out in my 73 Z, so I ordered the MSA 60 amp upgrade kit. I decided to give their alternator a try instead of sourcing one locally. Of course they warned me it's made for 70-72 Z's, and additional work is needed for a 73, have a pro install it, no warranty, etc. There are a handful of threads here for a 73, but some with broken links, and some with unanswered questions. Maybe this thread can be used to consolidate 73's. From what I gather, for a 73: Install new alternator and connect per instructions. The regulator plug (Dave's) is the same for 73 as 70-72. Extra wiring is required if you are running an electric…
Last reply by jpc3006, -
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Hey guys, I am reassembling my dash and my next obstacle is replacing all the broken connectors (have broken locking tabs) on the dash harness. I have heard vintage connections carries datsun connectors, but they don't seem to have what I need. My connections seem to be bullet connections inside the connector instead of spade. I am sure many people have ran into this problem. Should I just repin the connectors for spade connections and go with one of the vintage connectors. I would prefer to find the proper connector and save the hassle of repinning the harness, so let me know if you know where to get these connectors!
Last reply by crayZlair, -
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Can anybody guess what I'm about to try?
Last reply by SteveJ, -
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I'm working on completely rewiring my Z using one of the Painless harnesses. Since these don't come with provisions for the rear defroster, I was just going to use one of the spare circuits to power it. I measured the resistance of the traces and got about 29 ohms which would give a current draw of about half an amp and about 5 watts of heating. My question is, do you think this would be enough heat for the defroster to function properly, or is the resistance of my defroster too high and in need of refurb? I appreciate the help on this one!
Last reply by dutchzcarguy, -
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Recently I lost the fuel and temperature readings on my 1972 240Z simultaneously and am wondering if there is a connection. I know on Roadsters there is a step-down voltage regulator that controls both functions, but I'm not sure if there is any relationship between the two on an early Z. Checked the connections at the fuel tank and the temperature sensor and they seem secure. Is there a single fuse somewhere that controls both? Thoughts?
Last reply by Racer X, -
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I have a 1970 240Z which has some unoriginality to it. In other words: PO(s) did a lot of work to the car, including stuff like disconnecting the wiper fluid pump, etc. Anybody know what this single-wire connector might have run to? It's on the firewall side, just before the main cable bundle goes through the firewall to the cabin, and before the (I believe) windshield wiper motor wires split off. I can't make it out on the Engine Compartment Harness diagram in the FSM.
Last reply by jfa.series1, -
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Higuys, Is there a chart or a graphic of the connectors nears near the firewall (blue, white and black) that show the connector names? I need to know which is connector "C-4" which has the wires for the headlamps, so I can clean the pins and improve the leadlights. I looked in the Body Electrical section in the FSM and it only refers to C-4, and even tells you where the specific pin is for power & ground connections, but doesn't tell you where to find the connector itself. While I'm looking at them, I will mark them with a black marker. Thx
Last reply by TomoHawk, -
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So, I search the forum for an answer, got some info, but not exactly what I need, so here it goes: I'm doing a 73z completer restoration that was originally an automatic and I've converted it to manual using 72z doner parts. I initially left the car with points while starting it and checking it out. It runs with points. Now I want to make the Pertronix conversion (with the flame thrower coil). Since the car was originally an auto it had dual point distributor with one wire to each set of points. I replaced the 73 distributor with a single point distributor from a 72 Z. Since I'm using the original wire harness from the 73, it had two wires the connected to the poin…
Last reply by z3beemer,
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