X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc13.worldnet.att.net ([204.127.131.117] verified) by logan.com (CommuniGate Pro SMTP 5.0c1) with ESMTP id 675463 for flyrotary@lancaironline.net; Fri, 19 Aug 2005 21:48:21 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.117; envelope-from=keltro@att.net Received: from 204.127.135.60 ([204.127.135.60]) by worldnet.att.net (mtiwmhc13) with SMTP id <2005082001473811300n27coe>; Sat, 20 Aug 2005 01:47:38 +0000 Received: from [209.247.222.82] by 204.127.135.60; Sat, 20 Aug 2005 01:47:37 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: Rotary Diagnosis please Date: Sat, 20 Aug 2005 01:47:37 +0000 Message-Id: <082020050147.17934.43068BB90000E5B80000460E2160383116019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 14 2005) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_17934_1124502457_0" --NextPart_Webmail_9m3u9jl4l_17934_1124502457_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Jim, My Mazda factory manual says the oil seals should be .220 to .228 in height, the width limit of the oil seal lip (shiney part) is .020 and the protrusion limit (installed in the grooves) should be .020 minimum..........Get a manual if you do not have one already.........It will have all the engine tech data and will help you make heads or tails of what I just stated.........These little metal seals keep oil out of the engine and are very critical..........FWIW -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from James Brewer : -------------- > Yes, I replace the oil seal o-rings. Yeah, it was smoking when I got it. Very > low > compression on one rotor. Replaced parts with Tracy's overhaul kit. Bearings in > rotors were not > replace but looked ok and measured fine. New apex seals and side seals. > I didn't replace the metal oil rings on the rotors as they looked fine. How > critical are these anyway and what are the symptoms of failure/damage? > > Jim > > > > On Fri, 19 Aug 2005 20:49:27 +0000, Kelly Troyer wrote: > > Jim, > > You did replace the rotor oil seal O-rings I presume ?? Was it > > smoking like that before overhaul ?? -- Kelly Troyer Dyke > > Delta/13B/RD1C/EC2 > > > > > > -------------- Original message from James Brewer > > : -------------- > > > > > >> Guys, > >> I need some help on my recent 13B rebuild for my '87 RX7. Thanks > >> to all previous replies on the crank angle sensor/TDC > >> settings I was able to get it to crank and run. Now for the > >> diagnosis of my present problem: Engine starts and idles with a > >> slight > >> amount of smoking. As the engine warms up and I increase the RPM > >> I get a considerable amount of smoke. The smoke does > >> not smell "sweet" like it is burning coolant but maybe it smells > >> different in a rotary. Smoke is white not black. With limited > >> running > >> I haven't noticed a drop in the coolant or coolant in the oil. > >> Before I pull the engine and go thru it again I would like to > >> pinpoint the > >> problem before teardown. I thought I was careful about the o- > >> rings. I used Hylomar for the grooves as per Bruce Turrentine's > >> tape > >> to keep them in the grooves. Am I getting oil past the oil o- > >> rings? Other sources or causes for my smoke? Tests I need to run? > >> Help! Ed, Lynn, Leon or others. > >> > >> > >> Jim Brewer > >> Albemarle, NC > >> > >> > >> -- > >> Homepage: http://www.flyrotary.com/ > >> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ --NextPart_Webmail_9m3u9jl4l_17934_1124502457_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Jim,

My Mazda factory manual says the oil seals should be .220 to .228 in height,

the width limit of the oil seal lip (shiney part) is .020 and the protrusion limit

(installed in the grooves) should be .020 minimum..........Get a manual if you

do not have one already.........It will have all the engine tech data and will help

you make heads or tails of what I just stated.........These little metal seals keep

oil out of the engine and are very critical..........FWIW

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from James Brewer <alpha@concordnc.com>: --------------

> Yes, I replace the oil seal o-rings. Yeah, it was smoking when I got it. Very
> low
> compression on one rotor. Replaced parts with Tracy's overhaul kit. Bearings in
> rotors were not
> replace but looked ok and measured fine. New apex seals and side seals.
> I didn't replace the metal oil rings on the rotors as they looked fine. How
> critical are these anyway and what are the symptoms of failure/damage?
>
> Jim
>
>
>
> On Fri, 19 Aug 2005 20:49:27 +0000, Kelly Troyer wrote:
> > Jim,
> > You did replace the rotor oil seal O-rings I presume ?? Was it
> > smoking like that before overhaul ?? -- Kelly Troyer Dyke
> > Delta/13B/RD1C/EC2
> >
> >
> > -------------- Original message from James Brewer
> > : --------------
> >
> >
> >> Guys,
> >> I need some help on my recent 13B rebuild for my '87 RX7. Thanks
> >> to all previous replies on the crank angle sensor/TDC
> >> settings I was able to get it to crank and run. Now for the
> >> diagnosis of my present problem: Engine starts and idles with a
> >> slight
> >> amount of smoking. As the engine warms up and I increase the RPM
> >> I get a considerable amount of smoke. The smoke does
> >> not smell "sweet" like it is burning coolant but maybe it smells
> >> different in a rotary. Smoke is white not black. With limited
> >> running
> >> I haven't noticed a drop in the coolant or coolant in the oil.
> >> Before I pull the engine and go thru it again I would like to
> >> pinpoint the
> >> problem before teardown. I thought I was careful about the o-
> >> rings. I used Hylomar for the grooves as per Bruce Turrentine's
> >> tape
> >> to keep them in the grooves. Am I getting oil past the oil o-
> >> rings? Other sources or causes for my smoke? Tests I need to run?
> >> Help! Ed, Lynn, Leon or others.
> >>
> >>
> >> Jim Brewer
> >> Albemarle, NC
> >>
> >>
> >> --
> >> Homepage: http://www.flyrotary.com/
> >> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
>
>
>
>
> --
> Homepage: http://www.flyrotary.com/
> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/

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