LJ70 Alternator/battery issues

[komenda]

Hey guys,
I recently purchased an 1989' LJ70, it seems to have battery issues, the alternator doesn't seem to work, could you tell me what the issue could be or will the alternator have to be replaced? Thanks

 

[hzjoe]

a tu tester si tu charge plus que 12.5 sinon a tu netoyer tes borne de batterie avec une brosse de metal.mon 22re ma deja fait ca sur mon ancien camion rien du tout quand jai tourner la clef pis cetais juste mes contact qui etais sale.si ta baterie a du vers de gris sur les bornes ces signe quell est du.tien moi au courant et si tu vien en gaspesie ou si ta dautre question fais moi signe.

 

[komenda]

merci, jsuis dans la region de la gatineau pres d'ottawa

 

[Clint79]

thats dosnt help us much on the info side of things mate
unless we try google translate

 

[Radd Cruisers]

Basically he is saying that he needs to test the charge and see if it is more than 12.5V (or greater than battery voltage). That he should try to clean the battery terminals with a wire brush etc...

So, basically, clean the battery terminals and all the other connections and make sure they are clean. If there is black corrosion on the battery terminals, that will not conduct very well and will need to be scraped off.



The alternator may not be working if either a fuse or fusible link are broken (fusible link is at the battery + terminal, charge or engine fuse is in the fuse box).

The other issues that we commonly see in these are worn brushes in the alternator, a dead IC regulator (in the alternator) and a bad battery (which will slowly kill the alternator by overloading it - common in JDM imports when people are too cheap to replace the Japanese batteries with new ones).

Might be a good time to replace the starter contacts as well.


~John