4104

[4104SoFl]

Is a 1956 4104 Positive Ground or Negative Ground?

[luvrbus]

Positive ground 

[4104SoFl]

Thank you sir.
It now has an alternator and the 12V battery negative is hook to ground. Is everything else ok?

[johns4104]

Some gauges might be affected also!

[RJ]

Orville -

The 4104s came out of the factory as positive ground.

However:

Many, many, many operators and owners have since converted them over to the more common negative ground.

With you saying that the 12v battery negative is hooked to ground tells me that yours has been changed over.

Be glad somebody else went thru the process for you!

FWIW & HTH. . .



PS: What's the VIN on your coach?  PD4104-XXXX??

[4104SoFl]

4104-1889  Originally a bus in NJ (local). Then bought by a church who blew up the motor.
Then the man I bought it from, bought it from the church 1970 and put rebuilt 6-71 from GM and had the tranny redone. He change the rear end gear.
He also made it into a motorhome. That is the way it sits now. Took him about two years. He said he took it to Calf once. Then he used it to haul his drag car around. It had been sitting since 2006 or 7. When I bought it the old man was in his 80's. I had the motor check out by an old diesel mechanic. He pulled the valve cover. Everything looked almost new to me. The old man said he about 30,000 miles or so on it, but he was not sure. We worked on it. Fired it up and drove it home. Now I'm trying to get the lights to work.

[gus]

What RJ said.

Mine was Neg gnd when I bought it. Most have been converted.