REFLECTOR:M-20 Oil/Air separator

[Larry Colley]

Instead of adding parts, why not form a trap in the return line.  This will 
insure one way flow with about zero weight/complexity increase.


At 09:15 AM 4/3/04 -0700, you wrote:
>The PCV valve is put in the oil return line, backwards.  Positive pressure 
>closes the line during operation. When you shut down the engine the 
>reclaimed oil then drains back through the PCV valve into the crankcase.
>
>When the return line is open during engine ops it can cause a flow problem 
>in the separator that causes a greater amount of oil to be blown over board.
>
>Scott
>
>At 08:30 AM 4/3/2004, you wrote:
>>Keith,
>>How does a PCV in the return line prevent oil loss through the
>>breather?  My breather hose is connected to an aluminum box, is that the
>>separator?  Mine has a drain plug and I am considering installing a tiny
>>return line that will drain after the engine is off, but hopefully not
>>during operation.
>>John
>>
>>KeithHallsten wrote:
>>
>> >  John, The proposal is to put the PCV valve in the return line from
>> > the separator to the engine.  There is no way that such an
>> > installation could pressurize the crankcase!  The breather tube is
>> > still the breather tube. Keith
>>
>>
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>
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