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Discussion Forum
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8 Volt N

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Al Amstutz

03-13-2001 06:20:00




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I have been following this board carefully for a couple of months now and read lots about conversion to 12 volt (which I have done). I have a friend who has a 2N that has an 8 volt system. I had not heard of that before and wonder if that is a good alternative to 6 volt,and what changes are necessary to accomplish the change?
Any information would be interesting and educational to me and maybe others out there.
Thanks much.

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rbell

03-14-2001 07:16:46




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 Re: 8 Volt N in reply to Al Amstutz, 03-13-2001 06:20:00  
Brother had a 52 plymouth with a 6 volt flathead six. Wouldn't start (hot or cold) for nothing. He was going to buy an 8 volt battery, but I convinced him to spring for a tune up and new battery cables. When I was done, it started at -35 when 12 volt cars and trucks wouldn't even budge. As Dell often says, make it right, clean, bright, and tight! 6 volts with a properly tuned engine is as good as it gets.

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The other side...John-COLO

03-13-2001 18:41:54




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 Re: 8 Volt N in reply to Al Amstutz, 03-13-2001 06:20:00  
Unlike the other respondents, I think this is a viable alternative that should not be rejected out-of-hand. I've used 8 volt batteries in many Ns without problems. In some situations it's a good solution.

First clean the posts and be sure you have the correct cables. Check your 6V battery to be sure it is good. Do this with your charger...charge overnight and check the charge rate in the morning. If it's over 2 amps your battery isn't 100%.

The coil will take the extra volt (at least I've never had problems). My 6V battery charger will charge an 8V battery. The only potential problem is that sometimes the voltage regulator needs to be tricked up to allow a little more juice. I can explain how to stretch the spring in the regulator to make this happen.

An 8V battery isn't a solution to all potential problems. It won't cure an engine in need of overhaul. But it may delay the inevitable a for a few years until expending $1500 on the motor maybe won't cut into grocery money.

John, tOTG

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Dave in Mo

03-13-2001 15:03:03




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 Re: 8 Volt N in reply to Al Amstutz, 03-13-2001 06:20:00  
I just picked up a '52 AC WD which had a 8 volt battery in it. First thing I did was throw it away and get a new 6 volt. New battery cables/ groundwire, cleaned the starter housing real good. Fired right up.



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Claus

03-13-2001 08:59:09




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 Re: 8 Volt N in reply to Al Amstutz, 03-13-2001 06:20:00  
If you weigh the pros and cons, you will see that the cons outweigh the pros. As previously mentioned, charging the battery can become a problem. Messing with the voltage regulator can be aversion therapy. Then you are putting the coil at risk with the additional current through the primary. Unless, you really know what you are doing, stay away from 8 volt conversions. On the other hand if you really knew what you were doing, you would not do it in the first place.
Happy Motoring
Claus

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bj/8N/mt

03-13-2001 06:49:25




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 Re: 8 Volt N in reply to Al Amstutz, 03-13-2001 06:20:00  
eight volt batteries probably made sense if you had '49 Oldsmobile Rocket 88 trying to hot start on six volts.

with a twenty five horse flat head a good six volt system should never miss a start.

like twelve volt conversions they are a crutch



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Joel (SoCal 44's)

03-13-2001 06:30:03




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 Re: 8 Volt N in reply to Al Amstutz, 03-13-2001 06:20:00  
Cruise the archives... but, how do you charge an 8v batt with a 6v charger?? It's not the way to go. I am sure Claus will chime here soon ;). The archives will tell more than one can write in a single post.

Joel



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TimK

03-13-2001 07:09:35




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 Re: Re: 8 Volt N in reply to Joel (SoCal 44's), 03-13-2001 06:30:03  
I agree with the other responses. Don't do it. Mine was 8v. when I bought it. Nuthin but problems since nuthin electrically quite fits the system. My $.02



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DavidO

03-13-2001 08:01:54




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 Re: Re: Re: 8 Volt N in reply to TimK, 03-13-2001 07:09:35  
I also agree with the posts above. The 8V battery was probably someones treatment of a symptom, rather than a cure for the problem. Probably hard to start due to any number of problems, low compression, needed tune up, etc. I would recommend that you get rid of the 8V battery as soon as possible. Fix the 6V system or, if you feel the need to, convert to 12 V. 8V is not good.



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