[AT] Onan Charging system help needed

[Dudley Rupert]

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com]On Behalf Of JEFFREY PILBEAM
Sent: Friday, January 27, 2006 6:19 PM
To: 'Antique tractor email discussion group'
Subject: RE: [AT] Onan Charging system help needed

EASY one, 2 wires come from the Stator, they should put out approx 30-40
volts AC @ 3600RPM those 2 wires will then hook to the outer wires of just
about any std small engine reg-rec. thjen you will be getting about 14v DC
out of the unit to charge with.


Jeff's Jeep Barn
Britton Mi
Pilbeam's Centennial Farm
Tecumseh Mi
-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Cecil Bearden
Sent: Friday, January 27, 2006 8:33 AM
To: Antique tractor email discussion group
Subject: Re: [AT] Onan Charging system help needed

Larry & others.

I have been working on small engines for fire pumps for the last month.  I
have 3 ONAN, the old CCKB series that have the internal flywheel type
alternator.   They use a regulator (3 wires) and a rectifier (2 wires)
mounted outside.  I am missing the regulator on one and both on the other 2.
Onan later used a 20 amp regulator on the P series that has 3 connectors.
My question is has anyone replaced the earlier models with the later model
regulator.  Since Cummins bought out ONAN, parts for ONAN are ridiculously
expensive.  The rectifier and regulator boxes are $83 each!!!!!!!  The one I
want to replace it with would only cost me $20.  I also thought of using an
old external regulator from a 60's model Chevy.  I am just stumped on this
one, and I know I should not be...   Can anyone give me a little help???

I found a discussion of ONAN charging systems Here:
www.simpletractors.com/service/onan_electrics.htm




Cecil in OKla

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Remembering Our Friend Cecil Monson 11-4-2005
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