BTW I suspect that routing the oil sump blow by back to the intake as

commonly

done in cars now is not good. Aircraft engines have the crankcase

vented

over board. That blow by probably includes some acidic steam from

condensed

water vapor not to mention escaped combustion gases.

Paul Lamar

lonwood wrote:

That brings up the question of just how much blow by is there on a

rotary,

and how is it being dealt with? Is there enough oil in it to justify a
seperator canister?
Lonnie

Good question Lonnie. I wonder what Tracy does.

BTW I was thinking about an oil sludge separator. I suppose the filter

gets

it all out? Perhaps nobody ever changed the filter on this filthy engine

of mine

and the bypass activated.

Paul Lamar

Tracy Crook wrote:

Take a look at the side of a rotor.  There is a groove (outside of the outer
oil seal groove) which channels any blow-by back to the side intake ports.
The blow-by never reaches the crank case which is why the rotary keeps it's
oil so clean looking.  Mine looks quite fresh at 70 hours when I change it.

Tracy Crook
rws@altavista.net
www.rotaryaviation.com

OK great. No need for PCV. Thanks Tracy. 

Paul Lamar
 
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