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Onan Generators

Need help: Newbie


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  #1  
Old 11-02-2008, 09:50:40 PM
pcrmike pcrmike is offline
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Default Need help: Newbie

Howdy all, my granddad left me an Onan model 1.0 AJ-1R/1L that I know NOTHING about. It has never been started. I build engines for a hobby, and am familiar with startup procedures, but I need to see if I can get a manual for it, like a service or even a users manual for it. It is in perfect condition, and turns over freely with decent compression. It has the exhaust tube, and no fuel tank, as it still has the shipping plugs in all the holes. Not even wired up. IT IS BUTT-HEAVY! LOL! I am wondering if there is anything I should know about it. It is my first post here, about my first generator, and my first Onan. Thanks all for whatever you can tell me. I checked the FAQ's and found nothing about this model, but the build date in the SN is telling me it was built in 10/1972. Love the site. :-) PCRmike
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  #2  
Old 11-05-2008, 10:45:45 AM
pcrmike pcrmike is offline
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Default Re: Need help: Newbie

No help on here? All I need is either to find a place to get this info or to translate it. Help please? :-) PCRMike
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Old 11-05-2008, 11:22:22 AM
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ListerDiesel ListerDiesel is offline
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Default Re: Need help: Newbie

Mike:

It sometimes happens that nobody is looking at a particular section of the forum, so your post may go unnoticed for a day or so, particularly over the Presidential Election days!

The AJ is a good little engine, if you look here:

http://www.oldengine.org/members/die.../Interpret.htm

you can work out what you have in your genny set.

Manuals come up on ebay, while a few of the guys here may be able to send you a pdf copy.

Peter
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Old 11-05-2008, 11:23:02 AM
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Billy J Shafer Billy J Shafer is offline
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Default Re: Need help: Newbie

Need your full model and serial number. Then I will see what I have. I think you have one of the 1800 RPM units kind of rare.
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Old 11-05-2008, 11:26:27 AM
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Billy J Shafer Billy J Shafer is offline
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Default Re: Need help: Newbie

As Peter told you it sometimes takes awhile to get an answer. There is not someone watching the site at all times. And the old guys like me get slow at times. Onan tech since 1980.
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Old 11-05-2008, 11:35:02 AM
pcrmike pcrmike is offline
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Default Re: Need help: Newbie

Thanks again guys. It is an 1800 RPM unit per the tag. here is the SN# 1072481313. I was able to figure it was made in october 72, but nothing else from there. Never even started since bought. I am in process of wiring the plug box and electric start. I know that back then, regular (leaded) gas was the norm, and unleaded will cause wear on the valve seats. I build engines as a hobby, but with the light spring pressure and low revs, shouldn't it be OK for a long time on unleaded or should I run insted-o-lead? :-) PCRMike
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Old 11-05-2008, 02:07:14 PM
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ListerDiesel ListerDiesel is offline
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Default Re: Need help: Newbie

Unless you reckon on running flat-out at full load for long periods, I wouldn't bother. It's a low compression engine and unleaded wouldn't be a problem.

Glad you got some other responses too!

Peter
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Old 11-05-2008, 02:08:26 PM
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ListerDiesel ListerDiesel is offline
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Default Re: Need help: Newbie

Quote:
Originally Posted by Billy J Shafer View Post
As Peter told you it sometimes takes awhile to get an answer. There is not someone watching the site at all times. And the old guys like me get slow at times. Onan tech since 1980.
Hey, Billy, not so much of the 'old' please, there's a few of us up that end of the age group!

Peter
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Old 11-05-2008, 02:13:34 PM
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Default Re: Need help: Newbie

Peter How about Mature. Or have grown wise in the ways of the world.
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Old 11-05-2008, 02:17:03 PM
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Default Re: Need help: Newbie

Back in the (Mature) days of Onan they warned about using leaded gas.
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Old 11-05-2008, 04:11:32 PM
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ListerDiesel ListerDiesel is offline
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Default Re: Need help: Newbie

Quote:
Originally Posted by Billy J Shafer View Post
Peter How about Mature. Or have grown wise in the ways of the world.
Yes, that would fit nicely

Peter
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Old 11-05-2008, 04:50:33 PM
JamesB JamesB is offline
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Default Re: Need help: Newbie

PCRMike -

I think I have a PDF of the parts manual I could send you. PM me with an email address and I will send it your way when I can.

James
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Old 11-06-2008, 01:23:35 AM
pcrmike pcrmike is offline
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All lower case, use my username at gmail dot com. Thanks again guys! :-) PCRMike
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