I have an 8N tractor that I inherited (early 50S model) and recently got it running. I just put a new 8V battery in it (advice from TSC worker) but it's drawing down the battery instead of charging it. I not a mechanic, nor do I have a lot of diagnostic equip., so can somebody explain what's up in simple tearms?
8N question (electrical)
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RickB
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You have a 6 volt charging system that may or may not be working.
In either event, it won't keep an 8 volt battery charged.
In either event, it won't keep an 8 volt battery charged.
Keoke
Gold Member
Rick is right, you can not charge an 8 volt battery with a 6 volt generator even if it's working. Eight volt battery has about 2.1 volts per cell for a total of about 8.4 static volts.
You are going to have a charging voltage that is above 8.4 volts to charge this battery.
EG, a 12 volt charging system runs at 13.8 to 14.8 volts as a norm.
Bottom line, unless you can crank your charging voltage (adjustable voltage regulator) up to 9 to 10.5 volts you won't be able to charge your 8 volt battery.
cheers,
keoke
You are going to have a charging voltage that is above 8.4 volts to charge this battery.
EG, a 12 volt charging system runs at 13.8 to 14.8 volts as a norm.
Bottom line, unless you can crank your charging voltage (adjustable voltage regulator) up to 9 to 10.5 volts you won't be able to charge your 8 volt battery.
cheers,
keoke
kebo
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Are you certain that the tractor has not been converted over to a 12V system??
ford farm boy
Bronze Member
Your best bet is to go with 12 volt your starter will take. You need a GM two wire ALT. and resistor the 12 volt wiring is easy to do for help go here How-To's best place for help with old fords. Then it will start right
Diamondpilot
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Like the others stated are you sure its not converted to 12 volt? Many have been. I converted my 861, well my mechanic did, but was very easy. 12v alternator, a new coil, and new light bulbs were about it. Spins the starter over like a champ.
Chris
Chris
RickB
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If he had an 8 volt battery installed with a working 12 volt charging system, at a minimum the battery would be boiled out all over the place. No mention was made of anything like that.
tommu56
Elite Member
Try this link for the 8n wiring.
http://www.tractorbynet.com/forums/m...cal-short.html
there is at least 2 other 8 n threads going on.
tom
http://www.tractorbynet.com/forums/m...cal-short.html
there is at least 2 other 8 n threads going on.
tom
Stimw
Elite Member
If you still have a generator you might need to turn up the regulator to get more voltage. I haven't dealt with generator systems in years but I remember there were ajustments.
I had a 8-N and a 9-N both were converted to 12V. They sure do start better with a 6V starter.
I had a 8-N and a 9-N both were converted to 12V. They sure do start better with a 6V starter.
Soundguy
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Only a few of the N gennies had adjustments on back.. the stock 8n genny was a 2 brush job using a vibrating regulator.. while you can tweak them.. it's mostly a lost art.
He needs to go get that 6v battery.. and the TSC guy needs to stick to selling lawnmowers..
soundguy
He needs to go get that 6v battery.. and the TSC guy needs to stick to selling lawnmowers..
soundguy
