Electrical Issue

[69roadster]

Lost power to my 67.5 SPL. There no power to the ignition switch, Light, Amp Gage, fuse box.ect. I pulled the big white wire off the back of the amp gage and checked for power. Nothing, check across all of the flues no power at the fuse box. I do have power to the wires at the solenoid. The battery does read 12 volts. I did have to jump the car today had it running in the garage came back a few minuets later shout the car off. Ten minuets later I went to take it out on a test run and had no power replaced the battery as well . Any ides of thing I can check.

[69roadster]

I noticed that after I hooked up a jumper wire from the positive battery terminal to the altenator with the white wire attached the car poweres up and everything works,and the starter turns over . Without the jumper the power is dead. I ohm the white wire and it checked out.

[fj20spl311]

There is a fusible link down by the starter that connects the white wire to the battery.

[69roadster]

Thanks for the tip Phil turns out there was a short in the fusible. Replaced the fusible link and all is well again.

[Nissanman]

Of course the q remains, why did the fusible link blow?
You may find it more convenient to replace the link with either a self resetting circuit breaker or a conventional Maxi blade fuse
Don't remove it altogether or the Amp gauge will become a fusible link in lieu

[shifty]

This is the first I've heard of a fusible link on a roadster. Is it in the starter harness?

[dbrick]

This is the first I've heard of a fusible link on a roadster. Is it in the starter harness?

Me too, I thought it was just bad design.

[Nissanman]

I assume it is this bit here: -

67_5 fusible link.jpg

[shifty]

Me too, I thought it was just bad design.

I thought the ammeter was the fusible link

[fj20spl311]

Its shown on most of the wiring diagrams, but not labeled.
Its also common for it to blow and be replaced with standard wire........amp meter than takes its place....LOL

I have installed a Maxi Fuse in its place.....A circuit breaker is a good idea, if you can remember its there when it blows, otherwise your car starts working again after a rest until it blows again..........and again....and again......LOL