GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Onan Test Run (Bench Running Onan)
Onan Test Run [message #302628] Sun, 26 June 2016 00:47 Go to next message
Adrien G. is currently offline  Adrien G.   United States
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
Senior Member
Need help.

The Onan has been taken out of the MH compartment for cleanup of oil leaks,
R & R rear armature bearing, general maint, upgrades, and paint.
Would like to bench start the unit to check on oil leaks, voltage output,
carb adjustment and ? before putting it in.
How secure does it need to be to do this, and is a light bulb enough of a load on the gen
to check output?
Your comments and ideas, welcomed.





Adrien & Jenny Genesoto 75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
Re: Onan Test Run [message #302634 is a reply to message #302628] Sun, 26 June 2016 06:42 Go to previous messageGo to next message
bobby5832708 is currently offline  bobby5832708   United States
Messages: 237
Registered: November 2006
Location: Winter Springs FL
Karma: 3
Senior Member
I have run my Onan 6K on a work table with no issues. It doesn't move around at all just sitting there running without any restraints. Horizontally opposed engines are incredibly well balanced.

As an example of engine balance, in my 'collection' I've got several military-style small engines -- a 2A016 two cylinder vertical and a 4A032 four cylinder horizontal opposed. The horizontal engine is smooth and vibration-free when running free-standing while the vertical engine has to be sitting on an old tire to dampen the vibrations or else it's 'walking' all over the place.

I would think a light bulb would be enough of a load for a basic check of the Onan's output.


Bob Heller
2017 Winnebago 29VE
Winter Springs FL
Re: Onan Test Run [message #302635 is a reply to message #302628] Sun, 26 June 2016 07:04 Go to previous message
RF_Burns is currently offline  RF_Burns   Canada
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
Senior Member
I'd put something heavier than a light bulb as a load on it. After all a 60W lamp is just 1% of its rated capacity.
Maybe a small space heater (1500W is 25% of the Onan's rated loading)
JWID


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
Previous Topic: [GMCnet] Seam Sealant
Next Topic: windshield wipers
Goto Forum:
  


Current Time: Mon Sep 23 20:27:39 CDT 2024

Total time taken to generate the page: 0.00854 seconds