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Too late for me now, but when you are constructing your tanks, flox in oil
lines to exit at the filler neck and start somewhere in the hell hole area. When
you refuel, just inject the oil into the end of the free end of the line just
before fueling. Use good valves to close off the lines. The added fuel
turbulence will mix the new oil well. (too soon oldt-- too late smardt
Rich
In a message dated 6/2/2015 10:14:26 A.M. Central Daylight Time,
flyrotary@lancaironline.net writes:
Chrissi,
Could you guys give
us an update on parts you are manufacturing for the rotary install? I am
particularly wondering about the PSRU that Tracy used to make, as well as the engine
mount plate for the 13B, 20B, and Renesis.
Are you guys still
making all these items?
Bill
From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net]
Sent: Tuesday, June 02, 2015 8:46
AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Method of adding
oil to fuel
What about the
plastic squeeze bottles used in restaurants for
condiments?
Chrissi
=========================================================================
See the InMotion SCV
mini-Segway personal transporter at Osh 2015! This is small, light &
portable.
Randi will demo it in the FlyMart booths
733-734 & booth 4115 in Hanger D behind the
FlyMart
-----Original
Message-----
From: William Jepson
<flyrotary@lancaironline.net>
To: Rotary
motors in aircraft
<flyrotary@lancaironline.net>
Sent: Fri, May 22, 2015 12:15
pm
Subject: [FlyRotary] Re: Method of adding oil to
fuel
Bill, all the guys
doing fiberglass planes should have some metered pumps. Don't know how big the
"shot" is but they might work.
On May 21, 2015 4:06
PM, "Bill Bradburry" < flyrotary@lancaironline.net> wrote:
The syringe is along
the kind of ideas I was thinking of. I was thinking of perhaps a pump
that put out a measured dose that you could insert into your oil container
with a hose on the outlet so that you could pump in however many squirts you
needed. You should be able to pump out of the gallon container you buy
the oil in. You could then cap the hose so that it didn’t leak. I
also like that 12 pack cooler that Bobby mentioned as well to help keep this
messy stuff organized.
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Thursday, May 21, 2015 9:57
AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Method of adding
oil to fuel
Forgetting about the
small risk of failure of the OMP (which does happen), in the Renesis engines
manufactured until, I believe 2004, the ports squirting the oil into the
trochoids were insufficient (there were only 2 per rotor) and they had
multiple problems, so much so that Mazda, I am told, built a factory just to
rebuild the Renesis' at no cost to the owners. If you have a pre-2005 renesis
with 2 injection ports per rotor don't even consider the OMP. If you want to
consider the OMP, that is a decision with pros and cons on each side which I
will not go into.
One way of mixing
the fuel and oil is to get a large cappable poly syringe or syringes . Fill it
(them) with 2 stroke oil and while adding fuel, inject the appropriate
amount as the fuel is flowing. They used to do this with a product called
Prist for Turbine engines. (although they used aerosol cans with a tube which
attached to the filler nozzle.)
If you know that you
are going to put 10 gal in your tank, when you start fueling, squirt the stuff
in in the beginning when you start to add your fuel. Since the 2 stroke is or
supposed to be miscible with fuel, adding it this way especially with the
initial agitation of filling, despite the baffles, it should evenly
distribute. If you want, you can rock the wings. Remember, the baffles are not
continuous and have relief ports at the bottom of
each.
One question that I
have about any of the 2 stroke oil bulk adding is is there a difference
between the brands on their
misciblity?
I used to pre-mix
my oil & gas back when I was running auto gas (non-ethanol),
pumping into a fuel trailer at the nearby gas station. I would pour the
required amount of 2-stroke oil into the trailer tank, then add fuel.
By the time I was back at the airport it was well
mixed. After they started blending all mogas with ethanol, I was forced
to go to 100LL as my wing's adhesives are incompatible with alcohol.
My wings have a series of baffles, so adequate mixing became a
problem. So, I switched to the oil metering pump (OMP), using Richard
Sohn's OMP adapter and drawing from an auxiliary tank mounted on the
firewall. Now, I just have to remember to keep the oil tank
full. I often add a small amount of 2-stroke when filling the tanks,
but that is probably overkill.
It is my belief
that the OMP puts the oil exactly where it needs to be, directly on the apex
seals rather than mixing in with the fuel only to be burned up and blown out
the exhaust, most of it never reaching the apex seals. (Probably a
topic for future discussion.) Anyway, I'm happy with the OMP
approach. It is a very simple pump and has proven effective in
millions of RX-7's and RX-8's. The one modification I made was to
fabricate steel oil lines to replace the plastic lines.
I decided to add
oil to the fuel as I do the fill up back when I was building. That was
not a problem for a long time because I was buying fuel in a couple of 55
gal drums and hauling them on a trailer. I would add the oil to the
drum before I left the hangar to go to the gas station and then just fill
the drums.
The first time that
I tried to do this at an airport, it turned out to be a PITA!
The wind was blowing and it was cold and the oil was stringing out all over
me and the wing. Quite a mess!
This makes me start
to think of how can I measure and add this oil in a neat clean and easy
way. Now I know I am not the first guy to try and gas up on a windy
day so has anybody figured out how to do this in a cute
way?
I discovered a long
time ago that the best inventions I can come up with come off this
list. How do you guys do this?
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