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Onan 6.5NH-3CR/16004P Manual Help


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  #1  
Old 03-04-2011, 12:16:42 PM
olldhippie olldhippie is offline
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Default Onan 6.5NH-3CR/16004P Manual Help

hello friends

new here but need help. I live in Xcalak, Mexico (last town on the coast before Belize). moved here for Mich. I have an onan 6.5NH-3CR/16004P gen that was given to me but i have no books on it. I want to use it as a back-up gen for my solar set-up. here is the problem. I live so far from any town that has mail of any type. mail here is a joke. we dont even have a gas station, bank or ATM here. it takes over an hour to get to the big town to get gas. so i need manuals that i can down load in PDF. the only way i have to pay is in paypal. any help would be great.

thank you
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  #2  
Old 03-04-2011, 01:17:38 PM
Kevin K Kevin K is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

I think we can help you.

The engine service manual is part number 940-0751 and can be downloaded at
http://www.cumminsonan.com/www/pdf/manuals/940-0751.pdf

The Generator service manual is part number 900-0196
http://www.cumminsonan.com/www/pdf/manuals/900-0196.pdf

These are large files of about 4.5 Mb.

Someone may be able to email you a parts and operator manual.
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  #3  
Old 03-04-2011, 07:53:04 PM
Max Thompson Max Thompson is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

I have #940-0223 NH parts manual, PM me an e-mail address & I will send it.
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Old 10-28-2015, 09:59:25 PM
nickTHEtinkerer nickTHEtinkerer is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

Hey any chance I could get a copy of the parts manual or any other manuals for 6.5 NH 3CR as well? I've looked and looked for free manuals on one of these engines. I have a buddy that has one but its spewing out fuel out of the top of the carb like a water fountain. I am volunteering my time on it. I've cleaned the carb and the float looks good. Any advice would be appreciated! My email is nick.catron@gmail.com

Thanks so much and God Bless!
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Old 10-28-2015, 10:58:27 PM
nothingbutdarts nothingbutdarts is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

It might be best if you post the complete model and serial number of the unit so you get the correct manuals.
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Old 10-29-2015, 12:18:59 AM
Doug Reed Doug Reed is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

My first guess would be that someone has replaced the original fuel pump with an automotive fuel pump. An Onan fuel pump is around 3PSI, an automotive fuel pump is much higher. The Onan carb is designed to work with a gravity feed fuel system so it can't shut off a high pressure fuel supply. The fuel pump is mostly just for raising the fuel from a lower tank. You can search the forum for fuel pump and will find numerous suggestions for pump model within the last month It is pretty much one size fits all.

If you look back in this thread you will find all the manual numbers listed and you should be able to find them on the web site below, and possibly some that are not listed before. I particularly like the Master Service manuals as a reference for engine problems and the training manuals if they exist......
Good luck!
http://www.twinslan.net/~n0nas/manuals/onan/
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Old 10-29-2015, 07:28:41 AM
Max Thompson Max Thompson is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

Parts manual should be in your in-box.
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Old 10-29-2015, 11:57:43 AM
nickTHEtinkerer nickTHEtinkerer is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

Thanks so much everyone! This information is and will be a huge help! God bless all of you and Lord willing and I don't forget if I can figure it out I will post the solution!!'n
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Old 02-07-2018, 08:30:09 AM
Tablerockfshr Tablerockfshr is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

I know this is an old thread but i was also hoping if someone has the time i would love to have the manuals not to mention need lol thanks in advance tablerockfshr@yahoo.com
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  #10  
Old 02-07-2018, 09:19:49 AM
Kevin K Kevin K is offline
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Default Re: Onan 6.5NH-3CR/16004P Manual Help

You can download the manuals here: http://onan.xmsi.net/
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