This is my first attempt at making a cyclonic breather. Made from a 5/16 metal fuel filter. Removed the filter.

Whacked a ball brng into the bottom half to form it more funnel shaped. Silver brazed together.

I plan to route the vent hose up and over the engine mount.

It might work, but I may have the rotation backwards for the northern hemisphere!

Steven Winn

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Comment by Steven Winn on June 3, 2012 at 6:20am

So far so good! I have run the engine several times, no evidence of oil coming from breather. Admittedly, I have not made any high power runs. Will continue to monitor.

Comment by Steven Winn on May 20, 2012 at 8:31am

Dan, The breather hoses on my engine came from viking with a brass tee installed between the oil tank and a cover plate under the starter (as shown above). I removed the brass tee and installed my breather in it's place, the idea being the elimination of the catch tank. I will report it's effectiveness after testing.

I recall my old Cessna w/Cont 0200 having a cyclonic oil/air separator. This was my inspiration.

FYI, while researching, I found that modern Land rover diesels have cyclonic separators.

Comment by Dan Stanton on May 20, 2012 at 7:10am

Hi Steve,

Is that tee in the vent line something new?

On mine, the vent tube goes over the engine and down into a container on the firewall.

Why the tee? And where does the tube now go?




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