LJ78 Charging Issue (1 Viewer)

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Dec 23, 2020
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Massachusetts
I purchased an 1991 LJ78 Prado turbo diesel about two months ago. It was originally import from Australia. Long story short, the battery is going dead after about a days worth of driving and 5-7 starts.

I have replaced one of the two batteries. But both charge just fine when I put them on a trickle charger. So the problem appears to be in the charging system.

I have also had the vehicle with a mechanic who rebuilt the alternator and replaced several connectors in the charging system and returned it to me just two days ago telling me he had solved it. It died again last night.

Has anyone run into a similar situation? Or have experience with the LJ78 turbo diesel? Or similar charging system?
 
You might want to post this in the 70-series tech section, you’ll get a lot more information there.
 

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