12volt for 8volt Oliver 77

OilverFan77

New User
I have an old 77 that is a retired lawn ornament, years ago the 6v was upgraded to the 8v but now I would like to throw a 12v battery in it. I may start it about 10 times a year, it is restored and I have had it since the 1950s, but the 8v batteries just do not last and I am too lazy to fix the generator.

For the conversion:

I do not use the generator, the lights are not used, therefore specifically for my 77, please in simple language (I am not a mechanic) what would I need to change to prevent damage to my tractor if i wanted to throw a 12v battery in it instead of my 8v?.

Thanks
 
Take your generator and regulator to a local electrical rebuilder and have him set it to 12V, most Delco generators can be set up to 18V, they just don't put out a lot of amps.
 

You stated you do not use the generator or the lights: is your intend to only install a 12 volt battery and not have a charging system?
 
(quoted from post at 19:55:21 05/23/18)
You stated you do not use the generator or the lights: is your intend to only install a 12 volt battery and not have a charging system?
Alot of my tractors do not have a charging system. Just a hot wire to the coil. They will run along time on a charge. If you do run them a lot you can put a trickle charger on at night. I bought a to30 in about 2005. Bought a new battery at that time. It has never had a charging system and the battery still works. My 3010 was the same way. I fixed it's charging system. Now I replace the batteries every 3-4 years. Go figure.
 
(quoted from post at 19:55:21 05/23/18)
You stated you do not use the generator or the lights: is your intend to only install a 12 volt battery and not have a charging system?

YES, I have used a 12v to jump the 8v and it starts fine, obviously it looks like for sustained us I would want to address the coil.

I gather from the above input (THANK YOU ALL) it looks like for a tractor used only on occasions, if I disconnect the generator, I can throw in the 12v as long as I set up the coil, am I correct?

THANKS AGAIN
 

Yes, that would pretty much do it if you don't desire a charging system. NAPA sells a 12 volt coil # IC-14SB for use without a resistor. You will need a battery charger/maintainer to keep your battery charged. You will need to put the charger on after each use - do not allow the battery to sit in a dis-charged state. Maintaining the battery fully charged is required for long life.

If you are leaving the generator in place and driven when the engine is running you may want to dis-connect it electrically. I am not familiar with Olivers so perhaps some one else can comment as to what is best.
 
(quoted from post at 17:28:44 05/25/18) is this a typo or did they really have an 8 volt...in case i ever run across it.
It was originally a 6v but an 8v was put years later, I believe to give it a little more cranking power.
 
(quoted from post at 19:02:43 05/24/18)
Yes, that would pretty much do it if you don't desire a charging system. NAPA sells a 12 volt coil # IC-14SB for use without a resistor. You will need a battery charger/maintainer to keep your battery charged. You will need to put the charger on after each use - do not allow the battery to sit in a dis-charged state. Maintaining the battery fully charged is required for long life.

If you are leaving the generator in place and driven when the engine is running you may want to dis-connect it electrically. I am not familiar with Olivers so perhaps some one else can comment as to what is best.

THANKS
 

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