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Onan Generators

Onan 15.0 Build Sheet off Serial #


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  #11  
Old 11-13-2017, 07:06:04 PM
Max Thompson Max Thompson is offline
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Default Re: Onan 15.0 Built sheet off serial #

The build sheet says spec. AC, but I think this is the right one.

Yes, B150 option is listed.
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  #12  
Old 11-13-2017, 08:13:41 PM
nothingbutdarts nothingbutdarts is offline
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Default Re: Onan 15.0 Built sheet off serial #

Thanks Max and OnanParts!!

The B150 makes sence, I measured stack lenght on a 3 phase 15.0 JC and it was 5 1/4", the stack length on this 15.0 RJC measures 16" so a B150 full output it is.

I also pulled the dist. today after getting it unloaded and i it's resting place for now, turning the flywheel I can see the crank turning but, the camshaft is not si sometime next year when I get room made in the garage, I will tear the engine down to see what the failure is.
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  #13  
Old 11-13-2017, 08:15:38 PM
yellowlister yellowlister is online now
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Default Re: Onan 15.0 Built sheet off serial #

Did you hear any grinding noise or feel hesitation while turning it? With the plugs out
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  #14  
Old 11-13-2017, 10:31:14 PM
nothingbutdarts nothingbutdarts is offline
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Default Re: Onan 15.0 Built sheet off serial #

Joe, I only turned it a few teeth on the flywheel and felt the cam not move then stopped.
Why do you ask???
I did notice the governor was not holding the throttle full open, maybe something in the front gear cover came apart. It will be very interesting to see what happened. The guy did say a place in Colorado Springs had rebuilt the engine and he only got about 50 hours out of it before this happened. I never thought to ask hime if he ever tried to get warranty out of it. Since it's been sitting like 6 years it really doesn't matter.
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  #15  
Old 11-22-2017, 12:13:05 AM
nothingbutdarts nothingbutdarts is offline
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Default Re: Onan 15.0 Built sheet off serial #

Might someone be able to put up a wiring diaghram for this unit?

I believe it's 612-5485-02 also diaghram 612-5818-01

Thank You!
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  #16  
Old 11-22-2017, 12:42:14 AM
MBB MBB is offline
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Default Re: Onan 15.0 Built sheet off serial #

Here you go Darts.
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Old 11-22-2017, 12:51:49 AM
nothingbutdarts nothingbutdarts is offline
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Default Re: Onan 15.0 Built sheet off serial #

MBB,

Do you happen to have to other diaghram as well, 612-5818?


Thank You for the other one!!!
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  #18  
Old 11-25-2017, 08:17:38 PM
nothingbutdarts nothingbutdarts is offline
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Default Re: Onan 15.0 Build Sheet off Serial #

OUCH!!!

The oil pump gear busted off and stuck in the crank and cam gears. It looks like the crank gear is split, I will know more tomorrow when I strip the engine down.
The crank turns a little but, the crank gear does not.
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  #19  
Old 11-25-2017, 08:19:36 PM
nothingbutdarts nothingbutdarts is offline
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Default Re: Onan 15.0 Build Sheet off Serial #

Few more of the damage.
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