Good Sam Club Open Roads Forum: Changing oil & can only fit in half a quart:S - QG 4000
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Changing oil & can only fit in half a quart :S - QG 4000

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
jimdmorrison

South Dakota/Iowa

Full Member

Joined: 12/10/2012

View Profile


Offline
Posted: 06/15/20 08:29pm Link  |  Quote  |  Print  |  Notify Moderator

I just put an Onan QG 4000 in my RV. It was used and the fuel float was stuck, but I think we got that taken care of. Since fuel had gotten in oil, I tried to change the oil today. Seemed to all flow out easily since it had gas in it.

I went to add oil and after half a quart, it overflowed. Doesn't seem to be settling down in there. (capacity is 1.6 quarts)

Tomorrow I will drain again to see if that half quart comes out.

Any suggestions? Do you normally have to add a little at a time? I'm hoping I don't need to drop oil pan.

Concerning side note: Before I changed the oil, running the generator built up oil pressure, causing it to spray out the next time I opened the dipstick.

fj12ryder

Platte City, MO

Senior Member

Joined: 08/19/2003

View Profile



Posted: 06/15/20 09:35pm Link  |  Quote  |  Print  |  Notify Moderator

FWIW, when I filled the oil on my 5500 Onan, I had to do it slowly to allow the air to "burp" out.


Howard and Peggy

"Don't Panic"

theoldwizard1

SE MI

Senior Member

Joined: 09/07/2010

View Profile


Offline
Posted: 06/16/20 03:40am Link  |  Quote  |  Print  |  Notify Moderator

jimdmorrison wrote:

Concerning side note: Before I changed the oil, running the generator built up oil pressure, causing it to spray out the next time I opened the dipstick.

There should be little to no pressure inside the crankcase. If there is, the positive crankcase ventilation system is not working.

Could it be that the excess fuel in the oil just raised the oil level ABOVE the fill line ?

The cleanest and simplest way to remove oil from any small engine. Lawnmower oil change using a shop vac

Horsedoc

Dixie --- N. Georgia

Senior Member

Joined: 09/30/2002

View Profile


Offline
Posted: 06/16/20 06:44am Link  |  Quote  |  Print  |  Notify Moderator

I think it might sound strange to some of you, but adding oil with a ketchup bottle works. Put the tip down in the hole and squeeze gently. The space allows the air to come out as the oil goes in. Have tried too many time to jus use a funnel or even pour from the neck of the oil bottle.

edatlanta

Jennings Ferry Campground-Camp Host, Akron, AL

Senior Member

Joined: 08/13/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 06/16/20 07:56am Link  |  Quote  |  Print  |  Notify Moderator

fj12ryder wrote:

FWIW, when I filled the oil on my 5500 Onan, I had to do it slowly to allow the air to "burp" out.


Or put the dip stick back in and bump the starter. Then add the remaining oil. I do this and it makes getting that last 1/2 quart in a lot faster.


Ed
KM4STL

2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch, Progressive Industries EMS-PT50C, TST Systems 507 TPMS
2010 Jayco Designer 35RLTS,Cummins/Onan RV QG 5500 EVAP
Fulltime since 2010


bukhrn

Lanexa, Va

Senior Member

Joined: 03/20/2005

View Profile



Good Sam RV Club Member

Offline
Posted: 06/16/20 08:23am Link  |  Quote  |  Print  |  Notify Moderator

it does go slow, VERY, take your time.
Thanks Horsedoc, that doesn't sound all that strange when I think about it, great tip, I'll be trying it, it has to be faster and easier, I can put 6 quarts in the V-10 faster than I can put 1.5 qts in the generator. [emoticon]


2007 Forester 2941DS
2014 Ford Focus
Zamboni, Long Haired Mini Dachshund
You can have my RV, when you pry my cold dead fingers from the Steering Wheel


bdosborn

Colorado

Senior Member

Joined: 03/26/2006

View Profile


Offline
Posted: 06/17/20 06:14pm Link  |  Quote  |  Print  |  Notify Moderator

fj12ryder wrote:

FWIW, when I filled the oil on my 5500 Onan, I had to do it slowly to allow the air to "burp" out.


When I'm filled with beer I need to do it slowly to allow the air to "burp" out.


2010 6.5'X11' TTT - Boxcar
Custom Frame, Poptop, AC, Espar Diesel Furnace, HW Heater, Sink, Shower, 12V-120V, LED Lights, TV and XM Radio, DVD Player, 300W PV Panels, PD 9140 Charger, Tongue Box, Filon Exterior, 1000W Generator, Patient Wife
Boxcar Build


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  Tech Issues

 > Changing oil & can only fit in half a quart :S - QG 4000
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.