Anti-splat oil separator

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Michael Baudhuin

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Aug 24, 2025, 8:48:34 AMAug 24
to rivetshaver via FalconRV-List
Guys,

I Would like to get feedback on the Anti-splat oil separator. 
  • Install it? 
  • Plumb the oil back into the case? 
  • Send excess oil to the exhaust? 
  • Save the money and wash the belly?
Thoughts?

Thanks,

Sparky

vic syracuse

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Aug 24, 2025, 10:03:18 AMAug 24
to Michael Baudhuin, rivetshaver via FalconRV-List
No go. They out slime back I to the crankcase. Oil separators need to be heated to work right. 

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Jim Faber

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Aug 24, 2025, 10:15:32 AMAug 24
to vic syracuse, Michael Baudhuin, rivetshaver via FalconRV-List
My experience is that it doesn't seem to work. I have one installed and I don't feed the output to exhaust system because of coking issues but I still have an annoying oil slick on the bottom of my airplane.

JBMcClanahan

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Aug 24, 2025, 2:37:52 PMAug 24
to Michael Baudhuin, FalconRV-List

Bob Walden

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Aug 24, 2025, 8:52:48 PMAug 24
to JBMcClanahan, Michael Baudhuin, FalconRV-List
Sparky,

I've been very happy with my AntiSplat oil separators,

My previous airplane had 1600 hours on the engine, and my oil consumption was always VERY low on the IO-390. 
 I maybe cleaned the airplane's white belly 2-3 times a year, and that was due in part with all the smoke oil we throw out in formation.
My overflow hose from the AntiSplat was directed to drip just above the exhaust pipe to vaporize the fluid as it leaves the airplane.
I inspected the system for coking during each condition inspection, but rarely saw  evidence of accumulation.

My new airplane has all-things AntiSplat, including the oil separator.  The builder plumbed the overflow directly into the exhaust pipe (which I DON'T recommend).  But he did install AntiSplat's check valve in the line to avoid clogging.  
So far, so good.  But I'm inspecting the system at every oil change now. 

Just my two cents.  If you read the VAF posts, this begins to sound a lot like "Primer Wars" discussions.

Waldo

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