Generator or Alternator?

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ricky racer
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Re: Generator or Alternator?

Postby ricky racer » Sat Apr 09, 2016 7:10 pm

Okay, here are a couple of pictures of the alternator and external resisters.

Image

Image

Don't ask me what the light bulb is for. :roll:

I would assume that with the alternators, it's pretty safe to say that they've been converted to 12 volts.
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Re: Generator or Alternator?

Postby Eugene » Sat Apr 09, 2016 7:57 pm

2nd photo, the light bulb is used to keep the alternator from back feeding the ignition system. Without the bulb the engine wouldn't shut off once it was started.
I have an excuse. CRS.

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Re: Generator or Alternator?

Postby ricky racer » Sat Apr 09, 2016 8:21 pm

Eugene wrote:2nd photo, the light bulb is used to keep the alternator from back feeding the ignition system. Without the bulb the engine wouldn't shut off once it was started.


:shock: :shock:
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Re: Generator or Alternator?

Postby Eugene » Sat Apr 09, 2016 8:44 pm

I have an excuse. CRS.

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ricky racer
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Re: Generator or Alternator?

Postby ricky racer » Sat Apr 09, 2016 9:03 pm

Good info.... Thanks Eugene.
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Re: Generator or Alternator?

Postby Boss Hog » Sat Apr 09, 2016 10:12 pm

Eugene wrote:My parts manual says the first alternator on a Cub was 1975, starting at serial number 248125.

The conversion from 6 volt generator to 12 volt generator took place in late 1962 at serial number 221293.

So, thinking converted from generator to alternator.


It was in 1964 Eugene, and it was a red and white cub :D
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Re: Generator or Alternator?

Postby Eugene » Sat Apr 09, 2016 10:22 pm

Boss Hog wrote:It was in 1964 Eugene, and it was a red and white cub.
I have a wall fall of automotive and engine reference books. I just read them and report the printed material. I make no inference to their accuracy. I know of several references that have errors in the material.

So, , , , it's not my fault. It's someone else's.
I have an excuse. CRS.

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Re: Generator or Alternator?

Postby bob in CT » Sun Apr 10, 2016 3:49 am

You need a resistor, diode, or a warning light, in the circuit in between the alternator and the coil or there is enough voltage to keep the tractor running even with the key off.

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Re: Generator or Alternator?

Postby CharlieK » Sun Apr 10, 2016 5:18 am

snowed at HOG WALLOW also not to mention the WIND yesterday
get er done; life is good

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Re: Generator or Alternator?

Postby Smokeycub » Sun Apr 10, 2016 12:16 pm

staninlowerAL wrote:
Smokeycub wrote:Hi Rick, Does either tractor have an oil pressure switch wired into the alternator? My Super C has been converted to a 12 volt negative ground alternator and has that oil pressure switch to activate the 10SI alternator, works flawlessly.
Could you possibly post a picture of this setup? Thanks.

I'll try to get some pic's. In the mean time here's a site Eugene posted some time ago from Yesterdays Tractors, http://www.yesterdaystractors.com/ttalk ... 32845.html
Hope that helps! :coffee:
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Re: Generator or Alternator?

Postby ricky racer » Sun Apr 10, 2016 9:15 pm

So since we've determined that they've been convered to 12 volts, what is the group size of the 12 volt battery that will fit in the battery box?
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Re: Generator or Alternator?

Postby Boss Hog » Sun Apr 10, 2016 9:54 pm

26
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Re: Generator or Alternator?

Postby Bill E Bob » Mon Apr 11, 2016 8:07 am

Make that 26R (so the + and - poles are in the correct position)


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