X-Virus-Scanned: clean according to Sophos on Logan.com From: "Mark Steitle" Received: from mail-wg0-f51.google.com ([74.125.82.51] verified) by logan.com (CommuniGate Pro SMTP 6.1.2) with ESMTPS id 7704652 for flyrotary@lancaironline.net; Thu, 21 May 2015 10:17:30 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.82.51; envelope-from=msdstx@gmail.com Received: by wgfl8 with SMTP id l8so87234683wgf.2 for ; Thu, 21 May 2015 07:16:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=/fEqIxgj6dvSd0YH/GP9WS6mbcZviyAqdKQJt17q1z4=; b=zNnVC4uMXErLG76Rlwt3t/ttCqyCgeHhNp1oguah/y4brJ/vDbtR0lJCmKUk34/LXg 9By3ytO86lqGdIy9chSIKrMyUy1e3uS/sPoBl5dEe0pKg2fsOPMMlpbGO+SuhjkB/GwB 2IKrMx8Hw/k7OqLqATwgqlGerGOVUh8pKYUnCnNe3IIv5nWD4sk/aegCq4Jr9rhjLNo1 7+/h+IfA5PCiUhFUKuBW2C4Ytz0P7tjTmiVIr/Rs1JW26cavQc0rUYWBG787K9JAeLqd 0knXG+ccCSFINcRhAQzZgOwmmL7zo7232/JTm0RoE3/cgmsyokZcdgMmzKWWcdIXdeHB VRrg== MIME-Version: 1.0 X-Received: by 10.180.24.65 with SMTP id s1mr6667206wif.66.1432217813938; Thu, 21 May 2015 07:16:53 -0700 (PDT) Received: by 10.194.176.6 with HTTP; Thu, 21 May 2015 07:16:53 -0700 (PDT) In-Reply-To: References: Date: Thu, 21 May 2015 09:16:53 -0500 Message-ID: Subject: Re: [FlyRotary] Method of adding oil to fuel To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=f46d043bdf2a0a7727051698321b --f46d043bdf2a0a7727051698321b Content-Type: text/plain; charset=UTF-8 Bill, 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. Mark S. Lancair ES - 20B - pport On Wed, May 20, 2015 at 10:15 PM, Bill Bradburry < flyrotary@lancaironline.net> wrote: > 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? > > > > Bill > --f46d043bdf2a0a7727051698321b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Bill,
=C2=A0
I used to pre-mix m= y oil & gas back=C2=A0when I was running auto gas (non-ethanol), pumpin= g into a fuel trailer at the nearby gas station.=C2=A0I would pour the requ= ired amount of 2-stroke oil into the trailer tank, then add fuel.=C2=A0 By = the time=C2=A0I was=C2=A0back at the airport it was well mixed.=C2=A0After = they started blending all mogas with ethanol, I was forced to go to 100LL a= s my wing's adhesives are incompatible with alcohol.=C2=A0 My wings hav= e a series of baffles, so adequate mixing=C2=A0became a problem.=C2=A0 So, = I switched to the oil metering pump (OMP), using Richard Sohn's OMP ada= pter and drawing from an auxiliary tank mounted on the firewall.=C2=A0 Now,= I just have to remember to keep the oil tank full.=C2=A0 I often add a sma= ll amount of 2-stroke when filling the tanks, but that is probably overkill= .=C2=A0
=C2=A0
It is my belief that the OMP puts the o= il exactly where it needs to be, directly on the apex seals rather than mix= ing in with the fuel only to be burned up and blown out the exhaust, most o= f it never reaching the apex seals.=C2=A0 (Probably a topic for future disc= ussion.)=C2=A0 Anyway, I'm happy with the OMP approach.=C2=A0 It is a v= ery simple pump and has proven effective in millions of RX-7's and RX-8= 's.=C2=A0 The one modification I made was to fabricate steel oil lines = to replace the=C2=A0plastic lines.=C2=A0
=C2=A0
Mark S= .
Lancair ES - 20B -=C2=A0pport=C2=A0

On Wed, May 20, 2015 at 10:15 PM= , Bill Bradburry <flyrotary@lancaironline.net> wro= te:

I decided to add oil= to the fuel as I do the fill up back when I was building.=C2=A0 That was not a problem for a lo= ng time because I was buying fuel in a couple of 55 gal drums and hauling them= on a trailer.=C2=A0 I would add the oil to the drum before I left the hangar t= o go to the gas station and then just fill the drums.

=C2=A0=

The first time that = I tried to do this at an airport, it turned out to be a PITA!=C2=A0=C2=A0 The wind was blowing an= d it was cold and the oil was stringing out all over me and the wing.=C2=A0 Quit= e a mess!

=C2=A0=

This makes me start = to think of how can I measure and add this oil in a neat clean and easy way.=C2=A0 Now I know I am not th= e first guy to try and gas up on a windy day so has anybody figured out how t= o do this in a cute way?

=C2=A0=

I discovered a long = time ago that the best inventions I can come up with come off this list.=C2=A0 How do you guys do this?

=C2=A0=

Bill <= /span>


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