Electrical
Anything about the electrical system on a Zcar.
3,450 topics in this forum
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All guages were working before I made the switch to a megasquirt fi system. I found that the tach wire (blue) was shorting the ignition system out when it was attached so to get it turned I just left it off. When the engine is running it will short out the ignition if I attach it and the engine dies. I thought it might be the tach so I pulled the guage and wire plug out of the dash completely and the engine still dies if I try to attach the ble blue wire while it is running so I don't believe that the tach is the fault. Looking at the schematic in the service manual it appears that the blue wire goes to a resistor but I don't know where that may be, anyone know? I h…
Last reply by cgsheen1, -
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- 4 followers
- 18 replies
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The signals are doing some strange things that make no sense to me, using the old flasher unit, sometimes I can get all four signals to flash by moving the signal stalk left and right. Then the next time I go back to the left the front left signal won't flash or light up, the rear left and right signals always work no matter what, switch back to the right and now the front right signal doesn't work. Then a couple more tries and they all work again until the next time and the front left stops working. No rhyme or reason, I have taken the signal switch apart and cleaned the contacts with a scotch pad, the signal bulbs are working fine, I've switched them around, I've j…
Last reply by cgsheen1, -
- 2 followers
- 5 replies
- 514 views
I'm working on a 72 240z atm, it has a standard Pertronix ignition and the engine is running well, no problems there. Before I tear the dash out I'm wondering if any of these wires will restore the tach, on the coil are the red and black from the Pertronix and one of the black w/white stripe wire going to the positive side. Three wires left over, 1 black w/white stripe, 1 green w/white stripe and 1 black wire that I thought would be a ground but isn't. I was going to try connecting the loose wires one at a time to see if I could get it working but I've fried Pertronix units before so thought I would ask first. Thanks
Last reply by Yarb, -
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- 1 reply
- 257 views
in the passenger side engine compartment there is a kanto 3 amp fuse ? does anybody know what it is used for? can I get rid of it? thanks
Last reply by kully 560, -
- 2 followers
- 3 replies
- 326 views
My brake light is on and I’ve disconnected the parking brake switch. Based on the service manual the proportioning valve switch must be on but I can’t for the life of me see an electrical connection to it. What am I missing here? It’s the valve on the firewall with the four hard brake lines right? Driving me nuts!
Last reply by sboy79, -
- 1 follower
- 1 reply
- 611 views
Does anyone know of a more detailed wiring diagram for the blower fan and switch? I found this one but it's too basic, there are 6 wires coming from the switch and I need to trace them down. The car previously had A/C and I think the wiring harness has been modified. ColorWiring240Z-1971-USA-Early.pdf
Last reply by SteveJ, -
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- 3 replies
- 330 views
I'm putting together an order from Eastern Beaver for some electrical terminals bits and pieces. Anyone interested in tagging along and putting stuff in on the order? I'll send you your parts once the order arrives on-shore. Domestic shipping should be cheaper than the shipping from Japan. Their shipping isn't fast, but some of the stuff they have is really hard to find elsewhere. https://easternbeaver.com/Main/Main.html Some examples:
Last reply by Captain Obvious, -
Accessory Wiring 1 2
by SteveE- 1 follower
- 14 replies
- 1.4k views
Hi Everyone Looking for help and suggestions for wiring the accessories I have added to my "72" 240Z Added - Power door locks Power windows 2 Power outlets Hatch popper I have 2 fused power strips - my plan was to have one with constant power and one with switched power. thoughts? questions Where is the best places to pick up power? I am mounting these power strips under/behind the blower and don't want to go into the engine compartment if possible. I have more questions but will wait untill I get past this first obstacle. Thank You!
Last reply by SteveJ, -
- 2 followers
- 12 replies
- 943 views
Just noticed the high speed position on the wiper Combo switch is no longer working. Should i just dump that old and tired wiper motor or could it be something else?
Last reply by Richie G, -
Wiper rebuild 1 2 3
by Patcon- 6 followers
- 35 replies
- 1.5k views
I have 3 sets of wiper mechanisms on the bench. I finally decided I would rebuild them and plate them since I have some other items that need to go to the platers. Since I didn't know of a comprehensive rebuild thread on CZC I thought I would make one I did the break down today So you need to be sure on reasssembly that it looks like this or you're gonna have problems!! I started on the single pivot end The little clips aren't spring steel. The bend open. I might go back with snap rings on reassembly Then the felt. I am working on replacements for these Also shows the rubber seal that is on the face of the wiper pivot …
Last reply by Zpenman, -
- 2 followers
- 5 replies
- 548 views
There are three of them, one on the distributor, one on the coil and one near the alternator. There is a new alternator coming with an internal regulator, the spark is going to be handled by a Pertronix II unit and the spark plugs are NGK BPR6ES, do I need them? Thanks
Last reply by Zed Head, -
- 3 followers
- 11 replies
- 958 views
Who here knows the proper title given to the circuit board that s30 ZCAR headlight and turn signal switches use in their switches? This would be someone with a command of ZCAR esoterica and sadly, most of those guys are passing on. I miss them.
Last reply by Zed Head,
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