Only way to get fuel in the oil is through the small gap between the piston rings and cylinder or if the valve stem on the intake is leaking. Usually it is the opposite where the oil gets into the cylinder or intake mainfold through the leaking parts.
One other way this could happen is if the choke is flooding the engine then when the plugs short out, the engine shuts down, but still turns over a few more times. This draws in a bit more fuel that remains unburned. This fuel will seep down into the crank case very slowly, no matter the age of the engine. My suggestion would be to repair the fuel delivery problem, and keep replacing the oil in the the crank case. when fuel problem is fixed, run the generator on a good load with new oil for an hour or so and see if fuel still gets into the oil. Good luck, victor On Jan 22, 4:24 pm, "Perry & Cindi" <[email protected]> wrote: > Not good having fuel in the oil. It dilutes the oil and you loose > lubrication properties and can play havoc with seals especially in older > engines. I will let a more knowledgeable gas engine person give you > suggestions on what to do to repair the issue. > I do not think you should be running the engine until you fix the fuel > leaking problem. > Good luck > Capt. Perry > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > > On Behalf Of bushwood > Sent: Thursday, January 22, 2009 3:59 PM > To: UnifliteWorld > Subject: [UnifliteWorld] Re: Onan generator > > Well I played with it again today. I changed fuel filter, sprayed > carb cleaner down carb throat, checked plugs and they are moist. I > pulled dipstick and I can smell fuel in the oil. Despite what I did, > it still runs same. I haven't pulled the carb apart, yet...... > > On Jan 19, 1:03 pm, bushwood <[email protected]> wrote: > > I will check all again. It's just odd that one day it works great. > > The next day it starts up fine (manual choke) and then fails with a > > load. I checked the smoke/exhaust when this was occurring and did not > > see anything out of the ordinary. The water coming out of the exhaust > > did not seem to have any excess 'rainbowing' from unburned fuel, but > > then again, I've been wrong before. > > > Thanks and will keep you posted. > > > On Jan 19, 2:48 pm, waterguy <[email protected]> wrote: > > > > >RPMs never recovered after this, > > > > even with no load. > > > > > I think I can smell some fuel. Is it possible the carb float stuck > > > > and it's running way too rich? The genny has never been a problem. > > > > Are there any tricks to check before addressing the carb? > > > > > Thanks > > > > All excellent suggestions. I'd first look at the fuses in the control > > > unit (box on the left side of the genset - "left" as you stand at the > > > generator end of the unit, flywheel farthest away from you). The > > > electric choke is controlled by one of those fuses (sorry - don't know > > > which one offhand). Pull each one out and check with an ohmmeter - > > > I've had fuses blow right under the cap where you couldn't see it. > > > > I had this problem - rough running, fuel smell, gray-to-black smoke, > > > and it was the blown fuse that kept the electrically-heated choke > > > stove from being energized, warming up and pulling the choke off.- Hide > quoted text - > > > - Show quoted text - > > No virus found in this incoming message. > Checked by AVG -http://www.avg.com > Version: 8.0.176 / Virus Database: 270.10.12/1910 - Release Date: 1/22/2009 > 6:28 PM- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/UnifliteWorld?hl=en -~----------~----~----~----~------~----~------~--~---
