Excess oil in Honda EM6500SX generator air filter case - Power Equipment Forum : Power Equipment Forums
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post #1 of 6 (permalink) Old 01-21-2014, 03:05 PM Thread Starter
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Excess oil in Honda EM6500SX generator air filter case

I bought this generator 3 or 4 years ago. I "accidentally" sprayed a small amount of carb cleaner into the air intake several months ago while it was running (the carb cleaner says "will attack plastic" right on it). It ran fine for several minutes and I shut it off. I hadn't run it again until yesterday (starts easy, single pull). From cold start, the exhaust is black and it takes 10 or 20 seconds longer than normal to run at full capacity. After that it runs fine and the exhaust is clear until I shut it off, but if i leave it off long enough to cool down, it does the same thing again. I don't see any damage on the plastic air filter case, but there is a very small pool of oil at the bottom of the filter and the filter has some extra oil in it. I am thinking it is the oil causing too much resistance to air getting through, so I soaked the filter in dish detergent and dried it thoroughly. I haven't tried again to see if it continues, but is it possible that I ruined some seals that is causing this?
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post #2 of 6 (permalink) Old 01-23-2014, 01:34 AM
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If you
Left it with fuel in it while it was stored the fuel has more than likely gone bad and the carb may be gummed up. I don't believe the oil in the air filter is a big problem possibly just a little blow by



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post #3 of 6 (permalink) Old 03-02-2014, 09:07 PM
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Originally Posted by holzhei View Post
I bought this generator 3 or 4 years ago. I "accidentally" sprayed a small amount of carb cleaner into the air intake several months ago while it was running (the carb cleaner says "will attack plastic" right on it). It ran fine for several minutes and I shut it off. I hadn't run it again until yesterday (starts easy, single pull). From cold start, the exhaust is black and it takes 10 or 20 seconds longer than normal to run at full capacity. After that it runs fine and the exhaust is clear until I shut it off, but if i leave it off long enough to cool down, it does the same thing again. I don't see any damage on the plastic air filter case, but there is a very small pool of oil at the bottom of the filter and the filter has some extra oil in it. I am thinking it is the oil causing too much resistance to air getting through, so I soaked the filter in dish detergent and dried it thoroughly. I haven't tried again to see if it continues, but is it possible that I ruined some seals that is causing this?
I do not no exactly what might be the problem but what I feel is that it could be the gummy fuel that is making problem
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post #4 of 6 (permalink) Old 03-02-2014, 09:08 PM
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Try cleaning the fuel tank and the funnel in which fuel flows...
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post #5 of 6 (permalink) Old 03-03-2014, 08:12 AM
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I would definitely check the fuel. Fuel from the pumps can deteriorate within 30 days. Even a fuel stabilizer will only "slow" the deterioration. With this in mind, your first step should be replacing the fuel.

I would not be concerned (as far as this incident goes) with the air filter cover and base being damaged as long as there is no visible damage. Long term, you might have a weakened base/cover since carb cleaner and those types of products will weaken plastic. Essentially, it makes it brittle. Again, not to be concerned with unless it starts to fall apart, crack, warp, etc. Just be certain the filter cover properly seals against the base so the air is "cleaned" before it enters the engine.

Regarding the oil in the oil filter and base, it is supposed to be there. I am a Honda dealer and trust me, these foam air filters (part # 17211-899-000) are shipped with excessive oil. It is not unusual for the oil to "drain" to the lower part of the filter. They are packaged in a sealed plastic and there is a visible quantity of excess oil in the package.

But you may ask why the oil in the filter? The oil in the foam filter traps the tiny dirt particles before they enter the engine. In a dusty and polluted setting (even pollen) the oil soaked filter will greatly extend your engine's life.

It is perfectly ok to wash the filter out with detergent and water (this is actually recommended by most manufacturers) but you need to saturate the filter in oil again before reinstalling it and running the engine. For about $8.00+/- you can replace your filter if it starts to deteriorate. If it gets worn, brittle, excessively stained, or otherwise damaged, REPLACE IT! A brittle filter will fall apart and suck into your engine, causing rapid internal engine damage. To test for it being brittle, squeeze and release a portion of it between your thumb and a finger. If it returns to its normal shape than it isn't brittle. Just remember, for about $8 you can replace it; is it worth taking chance damaging your engine with a questionable air filter? (Your engine should consume about 3 gallons of air per SECOND, a little more than 11,000 gallons per hour, at full RPM.)

Find your Outdoor Power Equipment owners manual here.

Here are the directions, from the Honda Owner's manual:

Quote:
Air Cleaner Service
A dirty air cleaner will restrict air flow to the carburetor. To prevent
carburetor malfunction, service the air cleaner regularly. Service more
frequently when operating the generator in extremely dusty areas.

Notice:
Never run the generator without the air filter. Rapid engine wear will
result.


Unsnap the air cleaner cover clips, remove the air cleaner cover, and
remove the element.

Wash the air cleaner element in a solution of household detergent
and warm water, then rinse thoroughly, or wash in nonflammable or
high flashpoint solvent. Allow the air cleaner element to dry
thoroughly.

Soak the air cleaner element in clean engine oil and squeeze out the
excess oil. The engine will smoke during initial startup if too much
oil is left in the air cleaner element.

Reinstall the air cleaner element and the cover.
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post #6 of 6 (permalink) Old 04-09-2014, 11:57 AM
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I noticed a lot of oil on the filter as soon as I looked at it when my SX got home from the dealer. It was settled at the bottom of the foam.
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