I have an Onan Emerald 4000 generator on my class C mh. I was running the generator on a camping trip, when it suddenly died. It won't even turn=over now. It only makes a single click sound when I try to start it. I noticed the bearing on the generator end appears to be damaged. If this is the cause for the generator to stop and not crank, should I expect more damage than just the bearing? What should I expect to replace, and where is best place to purchase the parts?

If the ball bearing has broken then the generator rotor is most likely jammed against the rotor. Usually the support bracing for the rotor will be broken and this is really an ONAN technician type of job. It is usually fixable. See if you can find a level 3 tech as they are more experienced. If no ONAN trained tech, go someplace else. Check the yellow pages under "generators, electric" or call ONAN at the number in your owners manual.JimL

I agree with Jim. Bearing drops and rotor can jam into stator. If you have the service manual and good with your hands. You could do the repairs yourself. But if you are not sure. Find someone that can.If you are close by. I would be willing to help you out.903-536-2816

What's the full model number and I'll post service manual. Good to hear from you Jim how are you feeling ?

Yes, ALWAYS include both Model and Spec. All the letters and numbers is even better. Those three replies above are three of the top RV genset gurus you'll find. Here and probably anywhere else.Every one's been a help to me. You can take what they say to the BANK.

j-d wrote:Yes, ALWAYS include both Model and Spec. All the letters and numbers is even better. Those three replies above are three of the top RV genset gurus you'll find. Here and probably anywhere else.Every one's been a help to me. You can take what they say to the BANK.Thanks jd but its those other two guys that have the knowledge I just try to store manuals to help out as I have been helped.

Onan Emerald 4000 bearing issue | Good Sam Community

Kpackpackkelley
Explorer II
Nov 04, 2013
j-d wrote:
Yes, ALWAYS include both Model and Spec. All the letters and numbers is even better.

Those three replies above are three of the top RV genset gurus you'll find. Here and probably anywhere else.

Every one's been a help to me. You can take what they say to the BANK.

Thanks jd but its those other two guys that have the knowledge I just try to store manuals to help out as I have been helped.
j-d
Explorer II
Nov 04, 2013
Yes, ALWAYS include both Model and Spec. All the letters and numbers is even better.

Those three replies above are three of the top RV genset gurus you'll find. Here and probably anywhere else.

Every one's been a help to me. You can take what they say to the BANK.
Kpackpackkelley
Explorer II
Nov 04, 2013
What's the full model number and I'll post service manual. Good to hear from you Jim how are you feeling ?
TEXAS
Explorer
Nov 04, 2013
I agree with Jim. Bearing drops and rotor can jam into stator. If you have the service manual and good with your hands. You could do the repairs yourself. But if you are not sure. Find someone that can.If you are close by. I would be willing to help you out.

903-536-2816
Generator_Jim
Explorer
Nov 03, 2013
If the ball bearing has broken then the generator rotor is most likely jammed against the rotor. Usually the support bracing for the rotor will be broken and this is really an ONAN technician type of job. It is usually fixable. See if you can find a level 3 tech as they are more experienced. If no ONAN trained tech, go someplace else. Check the yellow pages under "generators, electric" or call ONAN at the number in your owners manual.

JimL

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