air/oil separator


Old 07-20-06, 04:02 PM
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air/oil separator

I'm looking for an air/oil separator to use in minimizing oil loss in crankcase venting to atmosphere.

The only ones I've found so far are those in the $300 price range for aircraft engines.

I'm thinking of taking one of the common twin element units and adapting that. It would involve hooking the bowl drains together and running it to the crankcase for oil return. (These are the kind that Harbor Freight, Northern, and JC Whitney have. Typically, they have twin filter elements, with a regulator in the middle).

I'd remove the regulator.

The question I have is if the air flow goes through the filter elements? If so, I should be able to make it work. Also, I think these are primarily intended to remove water. If so, will the filters also work with oil?
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Old 07-21-06, 12:15 AM
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You're wanting to use water separators to remove oil from the breather vent? There shouldn't be any oil coming from the breather vent. If there is, you have problems that need to be resolved.

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