GX-390, seeping oil, oil in air filter


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Old 06-18-17, 02:50 PM
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GX-390, seeping oil, oil in air filter

I have a GX-390 based generator. I noticed recently that it is seeping oil (right below the oil drain bolt), about 1 tablespoon/month, and the air filter becomes wet with with oil when the engine is running. What could be going on with it? The generator is out of warranty and has very low hours (about 30 total). Thanks.Name:  1.jpg
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Old 06-18-17, 07:10 PM
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Is the oil level overfull and does the oil smell like gas? Don't tighten that oil plug too much or you will crack the block just under the plug and it will drip, if that's not already the problem.
 
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Old 06-19-17, 04:26 PM
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Check your breather tube see if it is wet with oil film.
 
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Old 06-19-17, 05:22 PM
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Oil level is normal.

However you are right, the filter reeks with gas. There is also oil film in the breather tube.

I did oil the filter when putting it in per Honda's instructions, but I am guessing having gas there would not be normal.
 
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Old 06-19-17, 08:04 PM
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Oil level is not a sure sign that your needle valve is not leaking. As I have mentioned in several other posts, gas is a most mysterious fluid.
I would suspect your needle valve is leaking and would also suggest changing your oil.
 
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Old 06-20-17, 05:05 PM
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Will do. Thank you for the suggestion.
 
 

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