Blow-by Yamaha ef3000ise
Sigh...went to check the air filter on my yammy generator and found the filter soaked in oil. Maybe a hint of gas as well. She has about 500 hours on it (the genset, not the filter) Well tak...
Forum Discussion
keithahl wrote:
Chum Lee: Fair enough, but still pretty oily. I can squeeze it out from the paper filters foam edge. (not the sleeve, but the foam attached to the filter edges that seat against the housing). When I run a towel into the filter grooves it comes out oily. Not sure if that is the way it should be or not. Overreacting?...possibly. All I know is it had never done this prior. She is running fine, no smoke, or at least none that makes me worry. It starts fine, the output is fine.
You know you are blowing my chances of convincing my wife we should have this:
http://www.centralmainediesel.com/order/Perkins-6-kW-Diesel-Generator.asp?page=P6125
I'll get another filter and see.
OK, I didn't realize that you cleaned the filter in the photo up, . . . . at least a little. It doesn't really look that bad. With that low of hours, there shouldn't be any oil dripping off the air filter or the foam seals on the ends of the filter. Find the crankcase breather and make sure its clear and that all the piping/venting is connected properly and flowing. Some Onan gennys had a TSB (technical service bulletin) to modify the breather, but, that shouldn't affect your model. (since it's a Yamaha) Are you using the correct oil and filling it to the proper level? (not overfull)
Chum lee
