Go Back   iRV2 Forums > MOTORHOME FORUMS > Class C Motorhome Discussions
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 07-06-2014, 11:35 AM   #1
Senior Member
fighterpilot's Avatar
Join Date: Jan 2013
Posts: 344
Gasoline in oil??

Onan 4000 quits running. Check oil and it pour out with gasoline smell. Really diluted as well. What is happening??? And how???. Thanks

fighterpilot is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 07-06-2014, 11:52 AM   #2
Senior Member
Mjay's Avatar
Fleetwood Owners Club
Join Date: Sep 2013
Location: Southern Alberta
Posts: 112
Needle and seat in carb is letting fuel leak by. Could be caused by a faulty float in carb.
If there is a fuel pump that is driven by the camshaft, that is another place where gas can get into engine oil.

2007 Fleetwood Revolution LE 40E, 400HP C9 Cat
2015 Ford F-150 Lariat Super Crew 4X4, Blue Ox Adventa LX and Patriot braking system
2012 Polaris Rzr 800 LE
Mjay is offline   Reply With Quote
Old 07-06-2014, 07:24 PM   #3
Senior Member
fighterpilot's Avatar
Join Date: Jan 2013
Posts: 344
Thanks, will get a mech. to check it out this week. 1994 Callista Cove Class C. Looks like genny is on a slide out rack but doubt the rack can handle the weight.
fighterpilot is offline   Reply With Quote
Old 07-16-2014, 09:38 AM   #4
Senior Member
Ford Super Duty Owner
Join Date: Apr 2012
Location: Austin, TX
Posts: 1,867
Shouldn't need to be slid out to service the carb...
cb1000rider is offline   Reply With Quote
Old 07-17-2014, 05:20 AM   #5
Senior Member
fighterpilot's Avatar
Join Date: Jan 2013
Posts: 344
Update. Thanks for the guidance. Took carb. off, cleaned it, checked float, appeared ok. Put new plugs in, air filter, and oil filter and oil. Cranked it up, runs better than ever. Considering my previous observation of "something" not shutting down when I shut down the generator once before, (I thought it was the starter still engaged), the mech suspected it was the fuel pump, which repeated itself again and forced the gasoline thru the carb. Have used it a number of times since, and seems normal. Will pay attention to the shut down. Thanks
fighterpilot is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Urgent: Where's my oil going? Piker Cummins Engines 819 07-10-2016 07:40 PM
Low oil pressure | erratic oil pressure | inconsistant oil pressure GlennLever Cummins Engines 45 08-28-2014 08:24 AM
Oil Seal Leaks - Front Wheels pagosajoe Freightliner Motorhome Chassis Forum 5 05-17-2014 10:27 AM
Oil Change Thoughts Vtxbiker Cummins Engines 39 04-09-2014 08:20 PM
Check the oil. Giant Jeff RV'ing Humor & Crazy but True Stories 4 01-10-2014 09:51 AM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:46 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.