Subject: positive crankcase ventilation
From: ACRE
Date: 12/30/2004, 9:30 AM


     Paul
     > Have you any suggestions for a rotary
PCV system using
     > a turbo? Have not seen it covered in my
yr of
     > following your posts. And is there a
better term to
     > replace "crankcase" in this acronym?
     > regards, Robert

     To my knowledge nobody has dealt with
that. Blow by does not seem
to be a large
     if any  problem in AC use. Not like there
is windage on the
crankshaft.

If I recall correctly, Tracy Crook said
something about some oil blowing
out of his engine at around 7,000 RPM, and that he
was working on correcting
it. It seems that he was having the problem
since he started using the 2.85/1 redrive. If
he is having a problem, it
would be good to know how to alleviate it.

Brian Trubee


Bruce Turrentine cut away part of the breather
system on the RX8 engine
Tracy
is using. Here is an illustration of what was
cut away.

Paul Lamar

Paul,
If you look to the right of the housing cut down
photo you will see a small
or thin passage which is actually an oil breather
line to bottom of the port
opening - I only just discovered this on the later
model 13B - which isn't
on the 12a.
Also the massive centre housing expansion centre
should alleviate any
blow-by - even with that part of the centre
housing removed as it is mainly
a oil filler ( the centre can act as that) and dip
stick holder.
Paul where did he run the dip stick ?

What concerns me on the single rotor is what
accommodation for an expansion
chamber, oil breather blow-by is provided for.
George ( down under)

Robert LeClercq wrote:

George
A center section with the filler tube passage cut away
looks as if it leaves a couple openings to be closed.
How is this done? Can't see any patches in the engine
photo.
Robert

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