X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from aspensprings.uwyo.edu ([129.72.10.32] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5475525 for flyrotary@lancaironline.net; Tue, 10 Apr 2012 10:52:02 -0400 Received-SPF: none receiver=logan.com; client-ip=129.72.10.32; envelope-from=SBoese@uwyo.edu Received: from ponyexpress-ht4.uwyo.edu (extlb.uwyo.edu [172.26.4.4]) by aspensprings.uwyo.edu (8.14.4/8.14.4) with ESMTP id q3AEpKAb000847 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Tue, 10 Apr 2012 08:51:21 -0600 (MDT) (envelope-from SBoese@uwyo.edu) Received: from ponyexpress-m10.uwyo.edu ([fe80::60dd:cb9e:6f71:3d48]) by ponyexpress-ht4.uwyo.edu ([fe80::8de7:b225:a85b:d0ee%13]) with mapi id 14.01.0339.001; Tue, 10 Apr 2012 08:51:20 -0600 From: "Steven W. Boese" To: Rotary motors in aircraft Subject: RE: [FlyRotary] Re: OMP Thread-Topic: [FlyRotary] Re: OMP Thread-Index: AQHNFyBzD/+OmeqPQ02qHzllrzB3eJaUIekl Date: Tue, 10 Apr 2012 14:51:20 +0000 Message-ID: <3E8191F276108F4481AB0721BBA9269E05C38A35@ponyexpress-m10.uwyo.edu> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [75.220.33.168] Content-Type: multipart/alternative; boundary="_000_3E8191F276108F4481AB0721BBA9269E05C38A35ponyexpressm10u_" MIME-Version: 1.0 --_000_3E8191F276108F4481AB0721BBA9269E05C38A35ponyexpressm10u_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Mark, If the 20B OMP pump is very similar to the 13B OMP in the gear drive and oi= l supply passage areas, and if an adapter for it is not available, it might= be quite easy to adapt it for an external reservoir by adding a supply lin= e, a little JB Weld and an 0-ring. Photos of these changes to a 13B OMP ar= e in the archives. Steve ________________________________ From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of = Mark Steitle [msteitle@gmail.com] Sent: Tuesday, April 10, 2012 7:46 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: OMP Steve, That drawing really helped me understand how the the OMP works. The 20b OM= P is very similar, although the lever has been replaced with a stepper moto= r and a solenoid. Also, the 20B plunger and ports are larger, which makes = sense as it must pump 50% more oil. So, it looks like I'll be using the 20= b pump after all. Regarding the plugged port, this was done by Mazda. So, I'll leave it as i= s. Maybe they used the 2-rotor casting for the 3-rotor engines... just a g= uess. Mark --_000_3E8191F276108F4481AB0721BBA9269E05C38A35ponyexpressm10u_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Mark,

If the 20B OMP pump is very similar to the 13B OMP in the gear driv= e and oil supply passage areas, and if an adapter for it is not available, = it might be quite easy to adapt it for an external reservoir by adding= a supply line, a little JB Weld and an 0-ring. Photos of these changes to a 13B OMP are in the archives.

Steve

From: Rotary motors in aircraft [flyrotary= @lancaironline.net] on behalf of Mark Steitle [msteitle@gmail.com]
Sent: Tuesday, April 10, 2012 7:46 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: OMP

Steve,

That drawing really helped me understand how the the OMP works. = The 20b OMP is very similar, although the lever has been replaced with a st= epper motor and a solenoid. Also, the 20B plunger and ports are large= r, which makes sense as it must pump 50% more oil. So, it looks like I'll be using the 20b pump after all.

Regarding the plugged port, this was done by Mazda. So, I'll lea= ve it as is. Maybe they used the 2-rotor casting for the 3-rotor engi= nes... just a guess.

Mark

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