X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA08.emeryville.ca.mail.comcast.net ([76.96.30.80] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTP id 2818069 for flyrotary@lancaironline.net; Tue, 25 Mar 2008 20:26:29 -0400 Received-SPF: none receiver=logan.com; client-ip=76.96.30.80; envelope-from=gregw@onestopdesign.biz Received: from OMTA12.emeryville.ca.mail.comcast.net ([76.96.30.44]) by QMTA08.emeryville.ca.mail.comcast.net with comcast id 5bKU1Z0070x6nqcA806v00; Wed, 26 Mar 2008 00:24:54 +0000 Received: from gregoryii ([24.6.40.29]) by OMTA12.emeryville.ca.mail.comcast.net with comcast id 5cRp1Z00N0dkeQQ8Y00000; Wed, 26 Mar 2008 00:25:50 +0000 X-Authority-Analysis: v=1.0 c=1 a=fN49V7UflncA:10 a=TXG3mvdoKslB6ZE2hwYA:9 a=FpBJdbQPqxmq9nBw0x4A:7 a=yuvYltKxnS6usrZRSTiFcEiFdWkA:4 a=U8Ie8EnqySEA:10 a=4vB-4DCPJfMA:10 a=mnkmjLdRvyEA:10 a=3oc9M9_CAAAA:8 a=RmAg8U2C8EIEJmwgxOoA:9 a=Fko7m7TKTNwHA2yehb4A:7 a=MwXuOrVYVWNeaLzyveFJj86BphEA:4 a=iVkDmfvjeKcA:10 a=EzXvWhQp4_cA:10 a=AfD3MYMu9mQA:10 Message-ID: <015301c88ed8$70db9ce0$8801a8c0@yosemite.onestopdesign.biz> From: "Greg Ward" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Using OMP rotor housing only Date: Tue, 25 Mar 2008 17:29:23 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0150_01C88E9D.C41D3FC0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0150_01C88E9D.C41D3FC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable EPA, what's that??......(:-) Greg ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Tuesday, March 25, 2008 8:45 AM Subject: [FlyRotary] Re: Using OMP rotor housing only Yep, the distribution thing is why Mazda has gone to two rotor housing = oil injection ports on the Renesis instead of one. Although the need = to cool the center of the apex seal with oil on the earlier 13B was = probably a factor as well. No more exhaust on the apex seal =3D cooler = apex seal so less oil injection needed. =20 If you don't need to meet EPA requirements, premix is best. Tracy On Tue, Mar 25, 2008 at 12:17 PM, wrote: The engine will run for some time with the OMP not doing anything. = Some of my gifted engines have had the hoses broken off. There will be a = slight amount of oil added from the oil scrapers on the rotor sides not = being perfect. The scrapers will also scrape off unburned fuel and mix = it with the crankcase oil. High oil temps will remove most of that fuel = through the breather. Note that crankcase breather gases are explosive. = A good reason to smell the dipstick when ever it is out.=20 So, as the engine wears out the scrapers it starts needing less top = oil.=20 The only downside to injecting into the housings is poor = distribution. It leaves a boat wake looking stain on the chrome. So, it = looks to me like some of that microscopic amount of oil is discarded = without helping anyone. It seems to me that the best case is the premix. = If I were to use the OMP, I would drop it all in behind the Throttle = Body, or into each throat on a carb. Or if you are a purist, into the = float bowl. =20 Years ago synthetic crank case oil was specifically not recommended = by Mazda. (because of gumming) Lynn E. Hanover In a message dated 3/25/2008 10:43:57 A.M. Eastern Daylight Time, = ALVentures@cox.net writes: So it would also seem to me that using the OMP with 2-cycle oil in = this scenario is significantly different than pre-mix. But is it as = effective, more effective, or worse?? -------------------------------------------------------------------------= --- Create a Home Theater Like the Pros. Watch the video on AOL Home. ------=_NextPart_000_0150_01C88E9D.C41D3FC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
EPA, what's that??......(:-)
Greg
----- Original Message -----
From:=20 Tracy=20 Crook
Sent: Tuesday, March 25, 2008 = 8:45=20 AM
Subject: [FlyRotary] Re: Using = OMP rotor=20 housing only

Yep, the distribution thing is why Mazda has gone to two rotor = housing=20 oil injection ports on the Renesis instead of one.   = Although the=20 need to cool the center of the apex seal with oil on the earlier 13B = was=20 probably a factor as well.  No more exhaust on the apex = seal  =3D=20 cooler apex seal so less oil injection needed.  
 
If you don't need to meet EPA requirements, premix is best.
 
Tracy

On Tue, Mar 25, 2008 at 12:17 PM, <Lehanover@aol.com> wrote:
The engine will run for some time with the OMP not doing = anything. Some=20 of my gifted engines have had the hoses broken off. There will = be a=20 slight amount of oil added from the oil scrapers on the rotor sides = not=20 being perfect. The scrapers will also scrape off unburned fuel = and mix=20 it with the crankcase oil. High oil temps will remove most of that = fuel=20 through the breather. Note that crankcase breather gases are = explosive. A=20 good reason to smell the dipstick when ever it is out.
 
So, as the engine wears out the scrapers it starts needing less = top=20 oil.
 
The only downside to injecting into the housings is poor = distribution.=20 It leaves a boat wake looking stain on the chrome. So, it looks to = me like=20 some of that microscopic amount of oil is discarded without helping = anyone.=20 It seems to me that the best case is the premix. If I were to use = the OMP, I=20 would drop it all in behind the Throttle Body, or into each throat = on a=20 carb. Or if you are a purist, into the float bowl.  
 
Years ago synthetic crank case oil was specifically not=20 recommended by Mazda. (because of gumming)
 
Lynn E. Hanover
 
 
 
 
In a message dated 3/25/2008 10:43:57 A.M. Eastern Daylight = Time, ALVentures@cox.net=20 writes:

So it = would=20 also seem to me that using the OMP with 2-cycle oil in this = scenario is=20 significantly different than pre-mix.  But is it as = effective, more=20 effective, or=20 = worse??




Create a Home Theater Like the Pros. Watch the video on AOL=20 = Home.

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