Jd 70 diesel batteries question

[dick benson]

I’m helping a young man that was given a 70 diesel with pony motor.it sat for 3 years and he’s getting everything deeded up from rust.
It needs batteries. Question, will it start on one 12 volt battery?
What is the correct battery configuration ?
I’m finding different articles, one says two 12 volts
Unless I’m wrong it is positive ground, is that correct?

 

[Loosehandle]

Nope don't use 12 volt you'll fry the coils, just one 6 volt.

 

[MSD]

One 6 volt battery or your coils will be fried. Don't use a boost charger on it either or they will be fried.

 

[jd2cylman]

And positive ground.

 

[rrlund]

It was the 730 electric start that used two twelves or four sixes.

 

[Dan in Ohio]

6 V battery for sure and are getting harder to find. My go to store is RK, they have 6V batteries in stock and reasonably priced. Let us know how things go with the 70 D.

 

[55 50 Ron]

6 V battery for sure and are getting harder to find. My go to store is RK, they have 6V batteries in stock and reasonably priced. Let us know how things go with the 70 D.

Bomgaars (in north central US) has 6 volt batteries.

 

[buickanddeere]

I’m helping a young man that was given a 70 diesel with pony motor.it sat for 3 years and he’s getting everything deeded up from rust.
It needs batteries. Question, will it start on one 12 volt battery?
What is the correct battery configuration ?
I’m finding different articles, one says two 12 volts
Unless I’m wrong it is positive ground, is that correct?

in desperate need of the operator's manual and service manuals. There is a procedure to start and stop each engine with minimal wear or outright damage .