[AT] Onan Charging system help needed

[Dudley Rupert]

Cecil,

I have three Simplicity's with each having a CCKB engine and with each
engine having the Stator charging system.  However, there are two different
configurations of Rectifiers and Regulators.

One configuration has a discrete Regulator and a discrete Rectifier.  Three
wires come out of the Stator, three come out of the Rectifier and two come
out of the Regulator.  Two of the three wires coming out of the Stator go to
the Rectifier and the third Stator wire goes to the Regulator.  The third
wire coming out of the Rectifier and the second wire coming out of the
Regulator are tied together and go to the Battery.

The other configuration has a single unit which contains both the Regulator
and the Rectifier.  In this configuration only two wires come out of the
Stator and they both go to the Regulator/Rectifier unit.  A third wire
coming out of the Regulator/Rectifier unit goes to the Battery.

I am not sure I understand your' charging configuration but if it's like
either described above I would believe as Jeff has said below that you
should have some Regulator/Rectifier choices other than Onan.  Incidentally,
I love the Simplicity's (9020s) to drive/operate but DETEST them (including
the Onan engine) to work on ... more than once I've been tempted to load
them all up and take them to a high cliff somewhere and push them off.

Dudley
Snohomish, Washington

-----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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Remembering Our Friend Cecil Monson 11-4-2005
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