RV.Net Open Roads Forum: Tech Issues: Getting Onan to run
RV Community | RV News & Reviews | RV Sales | Plan a Trip | RV Clubs & Services | RV Camping DealsRV.net
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

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

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Getting Onan to run

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

Southern California

New Member

Joined: 04/24/2008

View Profile

Offline
Posted: 05/01/08 03:53pm Link  |  Quote  |  Print  |  Notify Moderator

I have two questions and a little history behind them.

I have an Onan genset 4000 that is new to me. It is a model BGE spec. K. When I first got it, it sounded like it wanted to start, but would not run. I found that the generator shares the same fuel tank as the RV motor. The tank has a non-vented fuel cap which I believe creates a vacuum in the fuel tank starving the generator of fuel. I removed the fuel cap and generator started and ran for several minutes before I turned it off. Would a vented fuel cap remedy this problem?

The following day I parked the RV in the driveway which is sloped. I removed the fuel cap again and started the generator without much difficulty. I let it run for several minutes again before I shut it off. Twenty minutes later I had trouble trying to start it again and it started to make a strange noise while trying to start it. It was a metal on metal sound or like a buzz saw. Would operating the generator on a slope cause the oil to sit on one side of the oil sump, starving the motor of oil?

Thanks for any input.

Big Bruce

Ocala, Fl. US.

Senior Member

Joined: 01/03/2004

View Profile

Offline
Posted: 05/01/08 05:11pm Link  |  Quote  |  Print  |  Notify Moderator

Most generator that run off the main fuel tank are plumed so you can't run all the fuel out of the tank. I had one that would not run if the tank was down to 1/4. I guess it is possible to starve the oil sump if parked on a slope. But you should have a low oil feature that would shut down the generator.


Big Bruce
2006 Dodge, Dually, CTD, Quad Cab, 4 X 4, Automatic/ 2006 31' Cougar FW
Hauling (2) 2005 Harley Road Glides.
Or Gone Fishing - 17' Carolina Skiff with Yamaha 75Hp 4 Stoke.

CA Traveler

Sun Lakes, AZ

Senior Member

Joined: 01/03/2004

View Profile

Offline
Posted: 05/01/08 06:00pm Link  |  Quote  |  Print  |  Notify Moderator

Is the oil level on full on level ground?


2004 Holiday Rambler 36 Endeavor PST with ISC 330 Cummins
2004 Honda CR-V

Bob


Generator Jim

Conway, SC

Senior Member

Joined: 07/16/2005

View Profile

Offline
Posted: 05/01/08 08:18pm Link  |  Quote  |  Print  |  Notify Moderator

Your starter drive or starter is possibly going bad. Alternatively, your generator starting battery is low or has bad connections.


Jim & Jane Latour
08 Chevy 3500HD, crew cab, dually, Duramax/Allison
05 Wilderness Advantage AX6 365 BSQS, Onan 3.6KY
Retired AF CMS (E9) Power Generation and Onan RV genset Level III tech
Grand Strand Sams
Blog.rv.net

cheyuen

Southern California

New Member

Joined: 04/24/2008

View Profile

Offline
Posted: 05/02/08 09:24am Link  |  Quote  |  Print  |  Notify Moderator

I'll fill the fuel tank all the way up before trying again. The oil level is full on level ground. Can changing the starter drive or starter be done by the average do it yourselfer, or should I take in to be serviced?

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

Open Roads Forum  >  Tech Issues

 > Getting Onan to run
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:

© 2008 RV.Net | Terms & Conditions | PRIVACY POLICY | YOUR PRIVACY RIGHTS