Hey everyone, been keeping my '78 datsun ute alive for the past few months by the skin of my teeth and it finally kicked it.
The ute will run fine if it is jump started, but when driving i lose the radio and headlights dim, etc. However when I try to turn the key over, the electrics turn on, but i get the clicking sound suggesting the battery is dead even though i have changed the battery just to be sure.

Anyway to anyone out there that can help me would be much appreciated! :)
Okay so, i've narrowed it down to a few problems it possibly could be
- The alternator: The original alternator died earlier in the year and I replaced it with a recycled alternator (the cheap option). Would love to know if it is just because I went for the cheap option?

- The small positive wire trailing off the main positive cable connected to the battery, appears to overheat and break every chance it gets and honestly I've just been soldering it back together. I recently tracked the wire into the loom/harness it connects to, and it splits off into 3 wires, 2 of which proceed into the firewall and into the cabin, while the other continues towards the positive post of the alternator. Would love to here some ideas about that

- A particular fuse: I wouldnt have thought that the datsun would have an alternator fuse, but I could be wrong. The only fuses I can see are the classic cylindrical ones underneath the dash on the drivers side.

-Anything else i couldve left out?

I think thats everything! If anybody could help me ASAP, it would be greatly appreciated!

Cheers,
Sam