Koss Posted June 14, 2011 Share Posted June 14, 2011 A couple of days ago I finally picked up my 1971 240z at the port. Upon arrival the battery was dead. This was no surprise to me, since I knew the battery wasn't too good. The trouble started when I got the car home. When charging the batteries, I accidentally connected the battery charger wrong way around. Fore some reason the cables going from the negative side was red, and the positive cable was black. I therefor automatically hooked it up the wrong way around. After a couple of minutes the battery chargers thermal fuse shut it off, and I came to realize my mistake. I connected it the right way and left it to charge. Trouble is when I now try turning the key, nothing happens. I have no electricity what so ever. No lights no nothing. I bought a new battery, since the old one was bad, and to eliminate that as a problem. And I have done some searching around. My first guess as a bad fusible link. I found it has been removed and a cable has been spliced in, hopefully a fusible one. My multimeter tells me there is continuity all the way from the cabel shoe to the fuse block. But as the rubber on the cable is melted, and since I am not sure it's even a fusible link, I will replace it with a new cable and a maxi fuse trouble is, I'm not sure this solves the problem. My other guess is the amp gauge. (I read somewhere the amp gauge was not to fond of reversing the electrics)But I was wondering if any of you guys have any suggestions on what could be wrong. Quote Link to comment Share on other sites More sharing options...
Koss Posted June 14, 2011 Author Share Posted June 14, 2011 I have changed the fusible link, still no electricity Quote Link to comment Share on other sites More sharing options...
rsicard Posted June 14, 2011 Share Posted June 14, 2011 Fist check for grounds on the burnt wires. Bypass the ammeter by inserting a heavy gauge wire from the battery post on the starter and the armature post on the alternator with the negative battery post removed. Then momentarily touch the negative battery cable to the negative post of the battery to see how much of a spark it emits. If it does not spark too badly then hook up same to the battery and test other circuits. Quote Link to comment Share on other sites More sharing options...
Koss Posted June 14, 2011 Author Share Posted June 14, 2011 Thanks for the answer, I didn't see it till now. I ended up by passing the ammeter by inserting a wire from the battery to the alternator. Solved the problem. Quote Link to comment Share on other sites More sharing options...
akeboshi Posted July 20, 2011 Share Posted July 20, 2011 (edited) how exactly did you bypass the ammeter? where did you run wires? can u take pics of it for me? i am having the same problem right now marcus Edited July 20, 2011 by akeboshi Quote Link to comment Share on other sites More sharing options...
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