Onan generator not putting out power

Chazzer

Chazzer

Member
Sep 11, 2012
83
6
8
Southern Ontario
I have a 6000 watt onan generator model number is 6.ONH.IR/9000F could be an E It was running fine putting out 119 to 120 volts shut it down came
back 30 minutes later and no voltage. I have checked the breakers and plugged into ground power and everything works like it should, So the problem
is with the generator
--
Hager and Sissy
1975 Eleganza #5 of that year
Has a plaque on the glove box from GMC
Mostly stock with a few changes to the interior
Eagle rims and through the bumper hitch
Granite City Illinois
 
Did you have a load on the generator when you shut it off, and, did you
pull your finger off the "stop" switch before it completely stopped? If in
fact, you did, perhaps you toasted the bridge rectifier. Simple inexpensive
fix for that. Contact Jim K. and order a replacement. Simple modification
to the tangs, and you are good to go.
Jim Hupy
Salem, Oregon

> I have a 6000 watt onan generator model number is 6.ONH.IR/9000F could be
> an E It was running fine putting out 119 to 120 volts shut it down came
> back 30 minutes later and no voltage. I have checked the breakers and
> plugged into ground power and everything works like it should, So the
> problem
> is with the generator
> --
> Hager and Sissy
> 1975 Eleganza #5 of that year
> Has a plaque on the glove box from GMC
> Mostly stock with a few changes to the interior
> Eagle rims and through the bumper hitch
> Granite City Illinois
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
We can get you full instruction on location and what to do with the bridge
rectifier.

> Did you have a load on the generator when you shut it off, and, did you
> pull your finger off the "stop" switch before it completely stopped? If in
> fact, you did, perhaps you toasted the bridge rectifier. Simple inexpensive
> fix for that. Contact Jim K. and order a replacement. Simple modification
> to the tangs, and you are good to go.
> Jim Hupy
> Salem, Oregon
>

>
> > I have a 6000 watt onan generator model number is 6.ONH.IR/9000F could
> be
> > an E It was running fine putting out 119 to 120 volts shut it down
> came
> > back 30 minutes later and no voltage. I have checked the breakers and
> > plugged into ground power and everything works like it should, So the
> > problem
> > is with the generator
> > --
> > Hager and Sissy
> > 1975 Eleganza #5 of that year
> > Has a plaque on the glove box from GMC
> > Mostly stock with a few changes to the interior
> > Eagle rims and through the bumper hitch
> > Granite City Illinois
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
What Jim and Jim said. Happened to me.

Melbo
--
Albuquerque NM Bus Conversion 1978 MCI 1973 GMC
 
Hey, would anyone have a copy of those instructions handy? I bought a bridge rectifier from Jim back in 2017 as a spare to carry, and I realize now,
I don't think I have the instructions on what needs to be adapted to use the new version in place of the original....

If it matters, I have a 4K Onan...
--
Mark S. '73 Painted Desert,
Manny 1 Ton Front End,
Howell Injection,
Leigh Harrison 4bag and Rear Brakes,
Fort Worth, TX
 
Here is a link to photos of the OEM and mods to the replacement.

Two of the pins are labeled + (positive) and - (Negative). Orient the original and replacement rectifiers so those pins are in the same position.
Note the ones that need to be twisted to match the original.

In this photo, the original (OEM) is on the left. A new one is in the center, and a new one modified with twisted pins is on the right.

You can buy this from any electronic distributor for about $2.50 each. I'm kinda partial to DigiKey because of the fast & inexpensive shipping. Get
one rated at 25 Amps and 1000 volts. The high voltage rating may save the replacement next time the generator is shut down under load.

http://www.gmcmhphotos.com/photos/onan/p17103.html

--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
 
Mark,
We can send over the instruction on where the Bridge Rectifier is located
and how to modify the connectors.
Trusting the terminals is ok , but it is not that easy as the legs normally
do not line up.

> Here is a link to photos of the OEM and mods to the replacement.
>
> Two of the pins are labeled + (positive) and - (Negative). Orient the
> original and replacement rectifiers so those pins are in the same position.
> Note the ones that need to be twisted to match the original.
>
> In this photo, the original (OEM) is on the left. A new one is in the
> center, and a new one modified with twisted pins is on the right.
>
> You can buy this from any electronic distributor for about $2.50 each.
> I'm kinda partial to DigiKey because of the fast & inexpensive shipping. Get
> one rated at 25 Amps and 1000 volts. The high voltage rating may save the
> replacement next time the generator is shut down under load.
>
> http://www.gmcmhphotos.com/photos/onan/p17103.html
>
> --
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
In lieu of twisting the pins you can make up four short wires, each with a female spade connector on obne end and a male on the other.

--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
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Applied GMC
Get your shine on at www.cruzingear.co

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