Mark. S. (and anyone else with PP engine experience)
How did you end up getting a usable MP signal for the EC2/3? I have another couple of builders who took Paul L's advice and used PP engines with slide throttle mounted right to the ports. They are not having any luck getting a stable MP using the oil injection ports on the rotor housing.
Did you ever come up with a good solution?
Thanks, Tracy Crook
Sent from my iPad Charlie,
My system uses those EFI filters also. They are Fram p/n G3727. They take a Saginaw fitting on the filter side (see pic). I don't recall where I purchased my AN-Saginaw fittings.
Mark S. On Sun, Aug 5, 2012 at 7:16 PM, Charlie England <ceengland@bellsouth.net> wrote:
I'm not flying yet, but I more or less copied Ed Anderson's filter
configuration: each high pressure pump feeds a separate GM inline
filter, with the outputs from the filters T'd back together to feed
the regulator. There are AN adapters that screw into the filter.
Attached is the only pic I could find. The pumps are off the bottom
of the pic.
Ed, do you have the NAPA # handy?
Charlie
On 08/05/2012 03:35 PM, David Leonard wrote:
So my next
question is how small of filtration do we need? ie, what is the
size of a particle that will fit through the injector nozzle
easily?
I was using the Earls sintered bronze element at 35microns, but I
also could use the SS screen version at 85 mic. The Peterson in
line 600 series is MUCH more expensive and comes in 45, 60, and
100 micron SS screens.
http://www.jegs.com/p/Peterson-Fluid-Systems/Peterson-600-Series-Fuel-Filters/1528539/10002/-1
Those do have more surface area but will be a hassle for me to
retrofit, and not sure they are worth 4x the price of the earls.
Lots of other brands I have not explored yet.
I like the sintered bronze for strength and durability. Other
opinions?
Dave Leonard
On Sun, Aug 5, 2012 at 12:42 PM, David
Leonard <wdleonard@gmail.com>
wrote:
Yea, mine is an Earls cleanable high
pressure with maybe 10 sq cm worth of area. Will look
into the Peterson. Thanks Tracy.
Dave Leonard
On Sun, Aug 5, 2012 at 10:48 AM,
Tracy <rwstracy@gmail.com>
wrote:
Al probably means the filter that's on factory
in-tank pumps. OK, but very hard to implement on
RV wet-wing tanks. I used a gascolator for low
side filter on my -4. Worked OK and when it
clogged, switching on the backup pump with main
pump caused the screen disk to collapse and let
fuel bypass it. which is better than no fuel at
all but not an ideal solution.
On the -8 i used a cleanable Peterson filter
with TONS of filter area, works great. That was
a replacement for the Summit Racing fuel filter
with a filter element disk the size of a nickel.
It clogged up in about about 5 hours of flight.
Yes, it was the high side filter. I
don't have any low side filters. Would be
interested in a source for the self-cleaning
fool-proof low side filters that Al
mentions.
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
On Sun, Aug 5, 2012
at 6:34 AM, Tracy <rwstracy@gmail.com>
wrote:
I assume Al is referring to the
pump intake side filter. So for
the record, was it the inlet side or
the high pressure side filter that
clogged? ( Both are needed ) From
the symptoms I'm guessing high side
but not sure.
BTW, nice job!
Tracy
Sent from my iPad
As long as your are
rebuilding, tremendous
safety improvement by using
same fuel filter method that
all cars use. No matter how
much foreign material
you throw at it, it can't
clog. It minimizes pressure
drop, so lower risk of vapor
lock. Self cleaning filter.
Self priming pumps.
-Al Wick
Cozy IV powered by RDM
Subaru 3.0R.
Expert at failure prevention
methods, N9032U 240+ hours
from Portland, Oregon
Glass panel design, Subaru
install, Prop construct,
Risk assessment info:
http://www.ez.org/pages/alwick/index.htm
-----
Original Message -----
Sent:
Saturday, August 04, 2012
1:38 PM
Subject:
[FlyRotary] Re: Rotary
Forced Landing
Dave, having gone
through recently what
you just experienced I
would like to say GOOD
JOB on getting down
safely and with such
little damage. Anyway
at 1500 AGL there isn't
a lot of time ...
obviously you made the
right choices.
Jeff
(Rebuilding my Ride)
|
|
Sigh..
Yup, that was me.
I have been
meaning to fess
up. We were at
about 1500 agl
when the fuses
blew on my fuel
pumps. I was in a
close formation of
40 aircraft at the
time too. I think
I got some bad
MOGAS somewhere in
Iowa as I did
notice my fuel
return flow creep
downward but
didn't think it
was a big problem.
On the incident
flight, a one hour
formation flight
from SQI for a
mass arrival at
OSH, the return
fuel flow drifted
down to zero. I
actually though it
was a sensor
problem. I didn't
have the ability
to give it a lot
of attention
because we were in
a loose formation.
Soon after we
pulled it together
for a tight
formation power
switched off. I
tried to find a
road, but quickly
ran out of options
and put it down in
a bean field. With
the beans hitting
the flaps it
brought me to a
stop in about
200ft, just before
I would have gone
into the full
grown corn. As
mentioned, wheel
pants broke in
half but no other
damage besides
pulling bean
leaves out of
every nook and
cranny. The
farmers were very
nice, and the
stories are
true... they have
attractive
daughters. They
were out there
barefoot in their
Sunday best
enjoying the
excitement. Helped
me clean the fuel
filter and replace
the fuses. Within
a couple of hours
I was able to take
off from one of
their driveways as
they all waived
good bye (but
strangely, no one
took me up on my
offer for a ride).
Landed at OSH just
before dark to a
reserved parking
space and a very
warm reception
from the formation
group and friends.
Great support from
everyone all
around, though I
am trying to avoid
the obvious new
call signs they
are trying to give
me.
--
David Leonard
|
This message, and the
documents attached hereto,
is intended only for the
addressee and may contain
privileged or confidential
information. Any
unauthorized disclosure is
strictly prohibited. If you
have received this message
in error, please notify us
immediately so that we may
correct our internal
records. Please then delete
the original message. Thank
you.
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
--
Homepage: http://www.flyrotary.com/
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
<Saginaw_2_AN.jpg>
|