Onan 4000 ky generator has oil in the air filter
Been awhile since I’ve been on this site . I have found a bulletin of interest for a problem for lot of folks. Onan bulletin
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When I first got my MH with a MicroQuiet generator, I had oil dripping from the breather. It wasn't until I changed the oil and measured the oil (1.6 Quarts) before refilling it that it stopped. The MicroQuiet/MicroLite generators are extremely difficult to check for proper level. The best time to check the oil is after it's set for several hours so that the level won't be affected by pressure in the crankcase - either positive or negative. Now that I maintain the proper level, no oil has been coming out of the air filter.
