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Positive Ground or Negative Ground?

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DaveM View Drop Down
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    Posted: 08 Oct. 2011 at 6:45pm
I have a 48 CJ2A.  It was disassembled when I bought it.  I have determined it is 6 volts, but cannot tell whether it is positive or negative ground because none of the parts were connected.  Any suggestions on how to proceed?
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F Bill View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote F Bill Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct. 2011 at 6:57pm
http://www.cj-2a.com/oldsite/elec/wiring/index.html
here's a couple of great wiring diagrams.. Bookmark it and check out Sean's other pages while you are there...
If you haven't checked out the tech FAQ section, go to:
http://www.thecj2apage.com/forums/tech-faq_forum57.html
for a lot of great stuff you need to know!!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote bkreutz Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct. 2011 at 7:17pm
It's negative ground (the diagram just says ground cable (without saying positive or negative), but if you read farther, it does identify the cable going to the start button as positive). 
Gale

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Post Options Post Options   Thanks (0) Thanks(0)   Quote woolf Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct. 2011 at 10:33pm
You could get away with hooking it up either way. When I bought my '48 it came with the positive cable connected to ground. The starter worked fine but the ammeter showed a negative current when the engine was running. I switched the cables and flashed the field on the generator to change it to a negative ground system.

See this post on the Gee.

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DaveM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DaveM Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct. 2011 at 11:18pm
Thanks for all the information!  It is very helpful and has given me peace of mind!The diagrams are
particularly valuable.  You guys are great!

Dave
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