X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=T4/ysMCQ c=1 sm=1 tr=0 a=GX+oVRehGphV4japGZv+zw==:117 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=FmdZ9Uzk2mMA:10 a=C_IRinGWAAAA:8 a=Ia-xEzejAAAA:8 a=pGLkceISAAAA:8 a=PkYCYgy9AAAA:8 a=gk6Jqb0VTGrCH8TDkZIA:9 a=QEXdDO2ut3YA:10 a=hkUifRPuGo5upz2kQ3EA:9 a=coLOVPg1iCLS13lF:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=04jDZsmNAJ9MhMURcWJe:22 From: "Andrew Martin andrew@martinag.com.au" Received: from mail-qk1-f181.google.com ([209.85.222.181] verified) by logan.com (CommuniGate Pro SMTP 6.2.13) with ESMTPS id 12877989 for flyrotary@lancaironline.net; Sat, 24 Aug 2019 00:13:54 -0400 Received-SPF: none receiver=logan.com; client-ip=209.85.222.181; envelope-from=andrew@martinag.com.au Received: by mail-qk1-f181.google.com with SMTP id 201so10011381qkm.9 for ; Fri, 23 Aug 2019 21:13:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=martinag-com-au.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=duI+4umH59lbRlcrayYu8n+sazbCqYo/32RgdDFA9GU=; b=U7OoNz0Hry1z9t6zCnsZ/qTTn/XWQCVKuceN7Z9nifun6zJtwg5yTN2KRMZAKAa8h3 6+Xe5gFwm6T6+mhUcCG8+yFivp6l9AsHOWSHEGg14DD8RjofwGMXPCu3026yWUjUFuif gGDpps7ZxNvoWO91avEMA2QLyyc+1u5odQjPkqtGU9FdjSVZs7nFq8MeadrTwrmzOnpr 1qsx1qBwDgWaOIqQToOx/RDaC3WUoRA0afxg6EVcwscQtCxGJU+3mTqclXyls8dHCF2W S26BsqjjFIUkVqq8pu6N73szcKK+n+EIBcS6EspIUAUqq73ucMZ3C/mSATcQmwWdMMo6 80gQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=duI+4umH59lbRlcrayYu8n+sazbCqYo/32RgdDFA9GU=; b=sinivs6jE73eUBps0bcEWGQj3kJtBYJR9f3P5EHFe3/kiuOvemjwl1YXxKAc/rQhDy 3k+izb4wUBoHTge8brfxgfpbLi0obHwWg/Rmev+ElF6M7m0cTxXzffXN6Pz4eVFy8LJw zJGsjzROt0R7VkISOhQmnjfkF2qzOlC2NOCzuWpseEfqXEtEKONHRsXzgDXyYh1e4RR7 QztNxpbs2rhyvhJzyhFxwENfQA9IDYv7YLFPhqprtFtGPWiRqJXpiQ5YGBsxKYu60DKV zjRFssnvyPyeQzAt+cD6GxH6rNq/1uETAfdhR47yL0v/6Ip3TSpqxsChwLwEDvPwMfc+ 70qg== X-Gm-Message-State: APjAAAW2EtXghGize+jAU4Av513xLWFAa1cOQV7nusaXGeBKKl6TByTb NC69bnGu6GU6QxZWHVE/7i8eW7dvUK1jPjgma6YIvEE= X-Google-Smtp-Source: APXvYqz1jllSlAs5peBi/obkFNc5xAfETrrz5gbKGWNK9G523g1IJZnfrVSG6iPSNKRzKVrDDTX7ZQjVyexrJjaKXpE= X-Received: by 2002:a37:7d1:: with SMTP id 200mr7135007qkh.96.1566620017501; Fri, 23 Aug 2019 21:13:37 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Sat, 24 Aug 2019 12:13:25 +0800 Message-ID: Subject: Re: [FlyRotary] Re: Broken Apex seal leads to dissassembly. To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000a444080590d52510" --000000000000a444080590d52510 Content-Type: text/plain; charset="UTF-8" David. Take this oportunity to ditch the rx7 oil cooler. They are absolute junk. Only flow a fraction of the oil being pumped so oil in the pan is much hotter than is indicated. Mocal or Setrab work. On Sat, 24 Aug. 2019, 11:05 am David COOK hoursaway1@comcast.net, < flyrotary@lancaironline.net> wrote: > Rads are evap. cores modified for -12 hoses (from GM full sized PU truck > aprox. 2006), oil cooler is the Mazda RX7 cooler, upper eng. filter boss > cut off and bypassed, remote oil filter w/-10 hoses, rotor housings ok, > rotors ok, E-shaft ok. One other note, Apex seals only had one spring under > each?, vids that I have seen they show a long and a short spring, diff. > design? David,,,,,,thanks for the info. > > On August 23, 2019 at 12:58 PM "Matt Boiteau mattboiteau@gmail.com" < > flyrotary@lancaironline.net> wrote: > > https://chipsmotorsports.com/ is in Detroit. Can lap and renitride the > irons. Are your rotor housing okay? > > Out of curiosity, what size rads do you have for coolant and oil ? > > - Matt Boiteau > > On 2019-08-23 12:54:26 PM, David COOK hoursaway1@comcast.net < > flyrotary@lancaironline.net> wrote: > > Am in need of info., where to send my irons ( all three), to be lapped or > resurfaced, (or purchase some replacements) this is a 13B so the coolant > seal grooves are in the irons. I am in Lansing Michigan for distance > reference. This was supposed to be a "professional" built eng. w/aviation > mods. the mods are ok, but the wear in the irons in the combustion area > looks more like MANY hrs. of use. I only put 80 hrs. on the hobbs. 20 was > ground testing the rest in the air. Temps ran 190F coolant, 202F oil, > pretty regular. Lubrication was 1oz. 2cyc.oil and 1/2 oz. MMOil for every > gal. fuel. On prep for Osh. trip the next day, wanted some T&G's, runup > normal very strong could not hold back with brakes, aprox. 90% throttle > about foot off runway started missing, set back down and at turn off to > taxiway eng. quit running, had to lean EC2 all the way to left to get > started again. Checked EM2 bar graph, all in center so not fuel MAP > scramble. Thinking SAG (never experienced before so don't know the > symptoms) changed plugs, no joy, tested coils, all ok, checked comp. no > needle jump on 2 chambers, dissassem. found broken chunk from Apex seal > rotor #2. Done crying now need to fix (short summer). David R. Cook RV6A > Rotary Lansing MI > > > > --000000000000a444080590d52510 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
David. Take this oportunity to ditch the rx7 oil cooler. = They are absolute junk. Only flow a fraction of the oil being pumped so oil= in the pan is much hotter than is indicated.
Mocal or Set= rab work.

On Sat, 24 Aug. 2019, 11:05 am David COOK hoursaway1@co= mcast.net, <flyrotary@lancaironline.net> wrote:
<= /div>
=20

Rads are evap. cores modified for -12 hoses (from GM full = sized PU truck aprox. 2006), oil cooler is the Mazda RX7 cooler, upper eng.= filter boss cut off and bypassed, remote oil filter w/-10 hoses, =C2=A0rot= or housings ok, rotors ok, E-shaft ok. One other note, Apex seals only had = one spring under each?, vids that I have seen they show a long and a short = spring, diff. design? David,,,,,,thanks for the info.

On August 23, 2019 at 12:58 PM "Matt Boiteau mattboiteau@gmail.com" <flyrotary@lancairo= nline.net> wrote:

https://chipsmotorsports.c= om/=C2=A0is in Detroit. Can lap and renitride the irons. Are your rotor= housing okay?

Out of curiosity, what size rads do you h= ave for coolant and oil ?

- Matt Boiteau

On 2= 019-08-23 12:54:26 PM, David COOK hoursaway1@comcast.net= <flyrotary@lancaironline.net> wrote:

Am in need of= info., where to send my irons ( all three), to be lapped or resurfaced, (o= r purchase some replacements) this is a 13B so the coolant seal grooves are= in the irons.=C2=A0 I am in Lansing Michigan for distance reference. This = was supposed to be a "professional" built eng. w/aviation mods. t= he mods are ok, but the wear in the irons in the combustion area looks more= like MANY hrs. of use. I only put 80 hrs. on the hobbs. 20 was ground test= ing the rest in the air.=C2=A0 Temps ran 190F coolant, 202F oil, pretty reg= ular. =C2=A0 Lubrication was 1oz. 2cyc.oil and 1/2 oz. MMOil for every gal.= fuel.=C2=A0 On prep for Osh. trip the next day, wanted some T&G's,= runup normal very strong could not hold back with brakes, aprox. 90% throt= tle about foot off runway started missing, set back down and at turn off to= taxiway eng. quit running, had to lean EC2 all the way to left to get star= ted again. Checked EM2 bar graph, all in center so not fuel MAP scramble. T= hinking SAG (never experienced before so don't know the symptoms)=C2=A0= changed plugs, no joy, tested coils, all ok, checked comp. no needle jump = on 2 chambers, dissassem. found broken chunk from Apex seal rotor #2. Done = crying now need to fix (short summer). David R. Cook RV6A Rotary=C2=A0 Lans= ing MI


=C2=A0

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