510can

So I did more snooping around today, and I think my main cause of problems is the starter solenoid going bad from being so close to the header. Which would make sense because the problem seems to only occur when I have been driving the car hard for a little bit, then turn it off, and until it cools down when the solenoid wants to be a **** it just clicks but doesn't turn the starter like it should. FYI, when I say click I mean its one solid click not multiple fast clicks like with a low battery. Again any input is greatly appreciated Thanks, Mike

Hey guys, I have a 1971 240z with a Chevy 350 small block. The car runs amazing well, except sometimes when I go to start it all it does is click. At first I thought uh oh bad battery, which is a optima red top, but I had that checked and recharged and it checked out just perfectly. So I went ahead and had the starter tested thinking its my solenoid going bad, but the starter checked out fine at the autozone testing machine, unless the testing machine at autozone doesn't test the solenoid. So knowing that the battery checked out and the starter checked out I went ahead and recheck all the grounds which are good too. So at this point Im thinking that its the ignition relay, which I have not found where its located on this car. Also, this is a super intermittent problem too, sometimes the car will fire right up for over two weeks straight, sometimes it just keeps happening multiple times during a day and than it just goes away. FYI: I also have the amp meter by passed since I don't want it dead shorting from my 63amp alternator .. Any input or ideas are greatly appreciated. Thank you, Mike

Actually I never by passed anything. The red wire you see from the back post is soldered right into the stock white red wire, which runs through the whole car, which ran through the ammeter, and since I had a 63amp on a 45amp ammeter, it fused it self and created a dead short, and was burning up my power cables, and eating the battery. When it comes to wiring I love it. Now once I figured out that this is the 10si 63amp 3wire Delco alt, bells and whistles went off, I just didn't bother posting back lol. Anyways, the white wire you see there is usually hooked up to a dummy light, on the ground side. Except the crazy thing is gm dummy lights are a little bit more than that, and have something like a resistor build into them, or they just used a resisted wire on the plug either way works perfectly fine. Now surprisingly all that does is it turns the alt on as soon as you put your key to IGN ON and nothing else. So on my 240z since I don't have volt meter, nor a dummy light cause they didn't have them from factory. I had to hook up the wire to IGN ON, but with a 10ohm 10watt resistor, alnog with a diode so I don't get feed back. Now the red wire coming from the plug at this point I just jumped to the back post, and the back post I just ran to my battery. Now the car charges with no problems. Now probably due to the fact that Datsun/Nissan always has super fuckin shitty wiring and a weird fuckin way of doing things, everyone will experience these problems in differ ways. So Im probably going to rip the whole harness out of the car this weekend, and just build one from scratch. With how little this car needs, I should save my self about a gazillion wires hehe.

Hey guys, I have a 1971 240z with a 350 in it. The car runs perfect and I love it. Except Iv been having some weird issues with my charging system. Im running the Delco 3 wire alternator the 63amp. And here is how I have it hooked up. Of course the bat wire goes straight to the battery terminal post, the red wire on the plug labeled F#2(Field), and it goes into my post on the starter, I know I could just run a jumper wire from the Bat post to that terminal. The white wire is connected to the post labeled R(#1), and I have it connected with a 3amp diode to a 12v source that doesn't go on until my ignition key is turned on, and the diode is there so I don't get feedback and I can turn my car off with the key again hehe. The problem I have is or Im not even sure that its a problem. Is it seems to me as if the alternator switches on randomly when ever it wants, It definitly turns on when the car goes on, but sometimes when I do night driving my lights dim, and it does seem as if Im running off the battery. At first I thought my connector was loose, so I made sure thats nice and snug. Now on the other hand It might just be me not knowing and lacking knowledge on how a GM alternator is suppose to work, since I own 3 Datsun all with KA's and L series engines hehe. I did have the alternator tested yesterday and it checked out fine. I also have the AMP Meter completely by passed, since I know thats a culprit of all problems since their only 35 amps hehe. NOTE:Due to the size of these pictures, I recommend right clicking and pressing open in new tab or new window.