datzenmike Posted January 23, 2014 Report Share Posted January 23, 2014 The guy to ask for this is http://community.ratsun.net/user/2344-sealik/ It would help if you had a project thread and all these posts could be kept together. Way easier for everyone to find. And he posts right on time... like a boss. Still say the 3 wire plug will be near the tach... maybe tapped up into the harness. Look Quote Link to comment
EatLag Posted January 23, 2014 Author Report Share Posted January 23, 2014 Well as some of you may know, (datzenmike) i've been asking questions all over the place so he suggested to make one thread with it all ;) so i have, I was at work today when sealik was trying to help me with my rpm gauge issue, but i've got some photos now what do each of the 3 prongs do, they're behind the rpm gauge, and i can't read wiring diagrams for shit, now most of you have been saying that their should be a plug taped up somewhere i have looked in every nook and cranny to find it, and i'm damn certain its not their! this is behind my dash anyway :) Quote Link to comment
flatcat19 Posted January 23, 2014 Report Share Posted January 23, 2014 That's a lot of red wire. Quote Link to comment
wayno Posted January 23, 2014 Report Share Posted January 23, 2014 The plug for the tach will be above the the ignition key/gas pedal in the dash wiring harness, it should be there, it will have tape wound around it to keep it out of the way. Here it is on my 1980 720 harness. Quote Link to comment
ggzilla Posted January 23, 2014 Report Share Posted January 23, 2014 So now you have two threads about the rpm gauge. I doubt if that what dm had in mind. Quote Link to comment
EatLag Posted January 23, 2014 Author Report Share Posted January 23, 2014 yeah but if i have different questions, concerning other things they'll all be on here instead of spamming the forum :) Quote Link to comment
EatLag Posted January 23, 2014 Author Report Share Posted January 23, 2014 right... i untaped half the tape on the wires, i have about 3 that have bare wires showing with nothing attached, anyone know what colour the wires should be for the tacho? Quote Link to comment
wayno Posted January 23, 2014 Report Share Posted January 23, 2014 Yellow/red line(power), blue(to tach), and black(ground) Quote Link to comment
EatLag Posted January 23, 2014 Author Report Share Posted January 23, 2014 Right to make this easier on myself, i mose well check to see if the wire is coming of the coil, if i knew what and where the coil is on a z24, (excuse me retardness im new to cars in general and don't have a fucking clue about anything) but yeah, Quote Link to comment
wayno Posted January 23, 2014 Report Share Posted January 23, 2014 That blue wire doesn't go all the way to the coil, it ties into the negative side of the coil wire via resister before it gets to the negative post of the coil, but first it would help to even find it in the dash harness. Quote Link to comment
EatLag Posted January 23, 2014 Author Report Share Posted January 23, 2014 I'm stumped dude, literally fucked (not literall), looked everywhere for this bitch and nothing... i was going to buy an aftermarket tacho today when i bought my aftermarket fuel gauge but thought, no fuck it il fix and use the stock one... regrets... Quote Link to comment
wayno Posted January 23, 2014 Report Share Posted January 23, 2014 I went threw all this a month ago, you are going to have to pull that dash harness out of it's tangs that hold it in there, if you have done it already, then just wire the stock tach yourself. Number one post goes to the negative side of the coil, number 2 post goes to keyed power, number 5 is ground, there should be numbers on the back of the tach. There is supposed to be a resister in that line to the coil, I don't know nothing about that kind of stuff. I actually put an aftermarket tach in my truck today. Quote Link to comment
EatLag Posted January 23, 2014 Author Report Share Posted January 23, 2014 Right.. not to sound retarted, but what and where is the coil on a z24? Quote Link to comment
wayno Posted January 23, 2014 Report Share Posted January 23, 2014 Right.. not to sound retarted, but what and where is the coil on a z24? Oh.....yea......well..........I don't know about that situation, dual coils that is, I am dual coil challenged, so I only have engines that have one coil, or none at all, your going to have to find someone else that knows how to wire a tach to the Z24 engine. If I were to guess, I would say you could just use one of them coil connections to make the tach work, follow one of the distributor cap center wires from the cap to the inner fender, that should go straight to one of the coils. Quote Link to comment
EatLag Posted January 23, 2014 Author Report Share Posted January 23, 2014 Right... i think i found the coil, if not i'm about to make a fool of myself, now do i attach the tacho pickup wire to the positive or negative of it? Quote Link to comment
wayno Posted January 24, 2014 Report Share Posted January 24, 2014 Negative side Quote Link to comment
EatLag Posted January 24, 2014 Author Report Share Posted January 24, 2014 fuck yeah, finally found out what a coil is! ;) 1 Quote Link to comment
ggzilla Posted January 24, 2014 Report Share Posted January 24, 2014 The terminals on the coil are marked + and minus. For testing just wrap the wire around the - terminal post. If you have an 8-plug engine, be sure to use the primary coil as the secondary coil shuts off sometimes. Quote Link to comment
wayno Posted January 24, 2014 Report Share Posted January 24, 2014 The terminals on the coil are marked + and minus. For testing just wrap the wire around the - terminal post. If you have an 8-plug engine, be sure to use the primary coil as the secondary coil shuts off sometimes. :lol: Primary coil, they just figured out what a coil is, and you go and throw a curve ball. :lol: 1 Quote Link to comment
flatcat19 Posted January 24, 2014 Report Share Posted January 24, 2014 :lol: Primary coil, they just figured out what a coil is, and you go and throw a curve ball. :lol: How could he ask more questions if you do this? Bwahahahahahaha Quote Link to comment
EatLag Posted January 24, 2014 Author Report Share Posted January 24, 2014 Oh fuck me.. theirs two?, it's only got 4 plugs so... the one it took me along time to find should work? Quote Link to comment
wayno Posted January 24, 2014 Report Share Posted January 24, 2014 They are in Australia, they might not have the smog engine. Quote Link to comment
ggzilla Posted January 24, 2014 Report Share Posted January 24, 2014 4-plug engines have one coil yes. Quote Link to comment
EatLag Posted January 24, 2014 Author Report Share Posted January 24, 2014 Right... well i bought a blue led tacho off ebay, so we'll see how that goes :) Quote Link to comment
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