260z battery jumped wrong no power/lights

[finsrod]

OK thanks Dave. So do you think I may have fried my ammeter since I wasn't getting any reading for the fuses in the fuse box?

[Dave WM]

on mine, when the alt diodes shorted it took out the fuse link. lost ALL power. Try this, disconnect the alt (main lead positive) and jumper over the fuse links (there are 2 IIRC) just to be sure.

Since the alt is connected directly to the battery (thru the postive lead on the starter) you def sent reverses voltage to the rectifier built into the alt. Not sure the effect of that..

if that does not work you will just need to start tracing the power back to the fuse box. At least you dont have an EFI to worry about.

I will defer to Steve J on this one.

 

Edited November 29, 2017 by Dave WM

[finsrod]

OK Dave sorry I'm getting a bit confused so if I disconnect the main lead to the alternator. Should I then jump the green and black fusible links or are you referring to some other ones? 

[7tooZ]

If you go to the trouble to remove the amp meter you should consider changing to a 280 volt meter.


Sent from my iPhone using Classic Zcar Club mobile

[Dave WM]

disconnect the main wire to the alt, get some small small jumpers and use them instead of the fuse links. I just want to make sure your fuse links are NOT the problem. beyond that Steve J can guide you on best way go forward here is me with my total loss that happened when the alt shorted out. From you testing with the test light power from chassis to both sides it would seem you are ok,  I just want to make sure.

 

 

https://www.youtube.com/watch?v=Zn867HfRaOg

Edited November 29, 2017 by Dave WM

[finsrod]

OK got ya Dave thanks I'll keep troubleshooting.

7tooz would it plug right in or would I have to splice some wires?

[SteveJ]

Before we jumper out the fusible links, let's get some more readings with the meter. It's safer that way. I'll do my best to try to remember to write up some diagnostics for you. However, I recommend doing the troubleshooting with a fully charged battery. That way we are less prone to being deceived by low readings.

[finsrod]

Thanks Steve I'll pick up a new battery tonight I'll get back to you with the readings.

[7tooZ]

OK got ya Dave thanks I'll keep troubleshooting.
7tooz would it plug right in or would I have to splice some wires?

I have one sitting waiting to be installed but have completed it yet. My understanding is you basically illuminate the amp gauge by connecting the two wires then pickup a 12v power wire to operate the voltage gauge. Plus there is warning light that needs to be connected. I’ll search the form as soon as I can. Got to believe it has been well covered here.


Sent from my iPhone using Classic Zcar Club mobile

[finsrod]

7tooz oh ok doesn't sound to bad I'll look into it as well

[finsrod]

It runs again guys thanks for the insight.

I'm thinking the jump may have just fried the battery. I'm going to be double checking everything though making sure everything is working fine 

[SteveJ]

I'm glad it just seems to be a bad battery that caused your problems.