I flew the Ross PSRU 200 hours on my Long EZ (rotary)
and after 2 failures I am installing a Marcotte PSRU.
Ross recommended using engine oil and Marcotte says to
use gearbox oil that requires a reservoir.  I will be
going with Marcotte's recommendation.  I feel the plus
is I will be using clean gear oil that is formulated
for gearboxes not hot dirty engine oil.  The BIG guys
(airliners) use separate oil systems for their
accessories.  There are airplanes flying with the Ross
system.  To each is their own.      
--- Finn Lassen <finnlassen@netzero.net> wrote:
> So? What has that to do with the the Ross PSRU?
>
> Finn
>
> ronald GOWAN wrote:
>
> >Before drilling into you engine for oil you may
> want
> >to consider what Guy Marcotte recommends.  He said
> to
> >have a reservoir with gear oil to lubricate the
> PSRU.
> >--- "sqpilot@earthlink" <sqpilot@earthlink.net>
> wrote:
> >  
> >
> >>Hi, fellow rotary enthusiasts....I am getting
> ready
> >>to run the oil supply
> >>line to my Ross PSRU.  I am contemplating tapping
> >>into the 90 degree oil
> >>filter adapter which we made.  Upon looking at
> >>several schematics showing
> >>oil flow and direction in a 13b, I concluded that
> >>the oil first enters the
> >>oil filter from the port furthest from the engine,
> >>then after flowing
> >>through the filter, returns into the port closest
> to
> >>the engine. Because of
> >>the design of my 90 degree filter adapter, it
> would
> >>be easier and more
> >>practical to tap into the system where the oil is
> >>returning from the filter
> >>back into the engine.  My thinking is that since
> the
> >>oil filter is a
> >>"closed" system, that there should be the same, or
> >>adequate oil pressure
> >>just as the oil is exiting the filter as it would
> >>just before entering the
> >>filter?  If this is true, I can tap into that
> >>portion of the loop, and have
> >>a simple, short hose going straight to the top of
> >>the PSRU.  Did I mention
> >>that I like things simple?  Thanks in advance for
> >>any and all replies and/or
> >>suggestions.  Looks like this thing will be making
> >>noise very soon.  Paul
> >>Conner
> >>
> >>
> >>
> >>    
> >>
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> >
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> >>>
> >
> >
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> >
>


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