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  #11  
Old 06-13-2017, 12:15 PM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
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Quote:
Originally Posted by Boyd Birchler View Post
and oil leaked past the intake valve guides when the engine is not running.
This was the Lycoming's explanation of the source/way of the oil to the sump. I get roughly about a cap of soda bottle in one year (80 hours) each year.
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  #12  
Old 06-04-2018, 10:43 PM
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sglynn sglynn is offline
 
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Default Sniffle Valve Install

Am I suppose to let all the oil drain out of the hole the sniffle value goes into before installing the sniffle valve?

I'm installing Sniffle valve now in new Lycoming IO360. When I remove the plug oil drains out. Am I suppose to let all the oil drain out of the hole the sniffle value goes into? Is the oil coming out the same as crank case oil? Is this the same compartment? Would all the oil eventually drain out of engine if I left out the sniffle valve?

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  #13  
Old 06-05-2018, 05:41 AM
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DanH DanH is offline
 
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Quote:
Originally Posted by sglynn View Post
Am I suppose to let all the oil drain out of the hole the sniffle value goes into before installing the sniffle valve?

I'm installing Sniffle valve now in new Lycoming IO360. When I remove the plug oil drains out. Am I suppose to let all the oil drain out of the hole the sniffle value goes into? Is the oil coming out the same as crank case oil? Is this the same compartment? Would all the oil eventually drain out of engine if I left out the sniffle valve?

Thanks
Steve, the purpose of the sniffle valve is to drain liquids from the intake plenum...oil and/or fuel under normal circumstances, and water if you get a load down the air intake while parked in the rain. So yes, if there are liquids in the plenum, they will drain. Shake the valve. Hear the little check ball? It sucks upward and seals the drain when the engine is running at a manifold pressure less than ambient.
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