X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [137.118.16.51] (HELO smtp1.av-mx.com) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTP id 5473963 for flyrotary@lancaironline.net; Mon, 09 Apr 2012 09:56:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=137.118.16.51; envelope-from=res12@fairpoint.net Received: from MAIN (unknown [66.243.229.199]) (Authenticated sender: res12@fairpoint.net) by smtp1.av-mx.com (Postfix) with ESMTP id E6773291F9D for ; Mon, 9 Apr 2012 09:56:22 -0400 (EDT) Message-ID: <13905AEE135C422488E53C5E7E4D7D5F@MAIN> From: "Richard Sohn" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: OMP Plumbing Date: Mon, 9 Apr 2012 08:56:20 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0037_01CD162E.A1B039C0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3538.513 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3538.513 This is a multi-part message in MIME format. ------=_NextPart_000_0037_01CD162E.A1B039C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable There are basically 3 different OMPs for the RX7. First was the GEN1 OMP = with two lines going somewhere into the intake manifold. Second was the = GEN2 with four lines, two going to the intake manifold, the other two = going into the rotor housing using the injector valves. Sometime in 1998 = Mazda switched to control the OMP from the ECU using a new OMP, however = with four oil lines like the previous OMP. All three pumps have a = different footprint. The adapters offered by RWS are called 12A for GEN1 = OMP, 13B mechanical for GEN2 OMP, and 13B electronic for the OMP = controled by the ECU. Obviously an ECU with OMP output is needed for the 13Belectronic OMP.=20 Richard Sohn N2071U http://www.fairpoint.net/~res12/home.html From: Mark Steitle=20 Sent: Monday, April 09, 2012 4:52 AM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: OMP Plumbing Kelly, =20 I have a 13b front cover/OMP installed at present, but I also have the = 20b front cover/OMP on the shelf. I planned on using the 13b pump = because it is much lighter and simpler. They don't share the same = footprint. If you go to the RWS web site and click on the OMP adapter = link, you can see the different adapters for the corresponding engines. = The big difference with the 20b OMP is that it has 9 wires and 2 large = electric gizmos (I think they're solenoids) that were controlled by the = computer. I like the simplicity of the 13b OMP, just one lever. =20 Mark On Sun, Apr 8, 2012 at 10:34 PM, Kelly Troyer wrote: Mark, Steve, Have to admit I had not thought of that little problem for the = 20B.............Mark did your 20B come with a OMP ??.............I have a Cosmo 13B but have not paid = any attention to the OMP so do not know as I type if it is like the 89-91 pump or like the = 93-95 13BREW pump or if the 20B pump has a completely different mount pad than the = 13B..............Mark is your current=20 front cover a 20B ?................. Kelly On Sun, Apr 8, 2012 at 8:29 PM, Steven W. Boese = wrote: Mark, Since the OMP 's I've seen are set up with 4 oil lines and intended = for a two rotor engine, how do you intend to adapt it to the three rotor = engine in terms of amount of oil metered and how it is distributed? Steve From: Mark Steitle=20 Sent: Saturday, April 07, 2012 8:10 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] OMP Plumbing Is anyone running an oil metering pump (OMP) that can = help me figure out how the lines should be connected. I'm planning on = using the Mazda banjo fittings to hook up to the OMP, but what do I do = with the check valves. Do you connect the check valves to a vacuum = source or just block them off? Will the system work properly if I plug = the check valves? I plan on locking the lever in the full open = position. Will this work for a/c use? I'll be using Richard Sohn's = adapter with a 1 gallon reservoir filled with 2-stroke oil. =20 Mark S. --=20 Kelly Troyer Dyke Delta_"Eventually" 13B_RD1C_EC2_EM2 ------=_NextPart_000_0037_01CD162E.A1B039C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
There are basically 3 different OMPs for the RX7. First was the = GEN1 OMP=20 with two lines going somewhere into the intake manifold. Second was the = GEN2=20 with four lines, two going to the intake manifold, the other two going = into the=20 rotor housing using the injector valves. Sometime in 1998 Mazda switched = to=20 control the OMP from the ECU using a new OMP, however with four oil = lines like=20 the previous OMP. All three pumps have a different footprint. The = adapters=20 offered by RWS are called 12A for GEN1 OMP, 13B mechanical for GEN2 OMP, = and 13B=20 electronic for the OMP controled by the ECU.
Obviously an ECU with OMP output is needed for the 13Belectronic = OMP.=20
 
Richard=20 Sohn
N2071U

http://www.fairpoint.net/~res12/home.html
 
Sent: Monday, April 09, 2012 4:52 AM
Subject: [FlyRotary] Re: OMP Plumbing
 
Kelly, =20
 
I have a 13b front cover/OMP installed at present, but I also have = the 20b=20 front cover/OMP on the shelf.  I planned on using the 13b pump = because it=20 is much lighter and simpler.  They don't share the same = footprint.  If=20 you go to the RWS web site and click on the OMP adapter link, you can = see the=20 different adapters for the corresponding engines.  The big = difference with=20 the 20b OMP is that it has 9 wires and 2 large electric gizmos (I think = they're=20 solenoids) that were controlled by the computer.  I like the = simplicity of=20 the 13b OMP, just one lever. 
 
Mark

On Sun, Apr 8, 2012 at 10:34 PM, Kelly Troyer = <keltro@gmail.com>=20 wrote:
    Mark, Steve,
        Have to admit I had = not=20 thought of that little problem for the 20B.............Mark did your = 20B
come with a OMP ??.............I have a Cosmo 13B but have not = paid any=20 attention to the OMP
so do not know as I type if it is like the 89-91 pump or like the = 93-95=20 13BREW pump or if the
20B pump has a completely different mount pad than the=20 13B..............Mark is your current
front cover a 20B ?.................
 
Kelly

On Sun, Apr 8, 2012 at 8:29 PM, Steven W. = Boese <SBoese@uwyo.edu> wrote:

Mark,

 

Since the OMP 's I've seen are set up with 4 oil lines and = intended for a=20 two rotor engine, how do you intend to adapt it to the three rotor = engine in=20 terms of amount of oil metered and how it is distributed?

 

Steve

 

From:=20 Mark Steitle=20
Sent: Saturday, April 07, 2012 8:10 PM
Subject: [FlyRotary] OMP=20 Plumbing
 
Is=20 anyone running an oil metering pump (OMP) that can help = me=20 figure out how the lines should be connected.  I'm = planning=20 on using the Mazda banjo fittings to hook up to the OMP, = but=20 what do I do with the check valves.  Do you connect = the=20 check valves to a vacuum source or just block them = off? =20 Will the system work properly if I plug the check = valves? =20 I plan on locking the lever in the full open = position. =20 Will this work for a/c use?  I'll be using Richard = Sohn's=20 adapter with a 1 gallon reservoir filled with 2-stroke=20 oil.   =20
 
Mark=20 = S.
=
 

=
 
= =



--
Kelly Troyer
Dyke=20 = Delta_"Eventually"
13B_RD1C_EC2_EM2
 
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