From: "Matt Boiteau mattboiteau@gmail.com" <flyrotary@lancaironline.net>
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Date: Fri, 23 Aug 2019 12:58:06 -0400
Message-ID: <52cef391-bf84-42f3-9bee-0b4974d227ee@getmailbird.com>
Subject: Re: [FlyRotary] Broken Apex seal leads to dissassembly.
To: "David COOK hoursaway1@comcast.net" <flyrotary@lancaironline.net>
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https://chipsmotorsports.com/ [https://chipsmotorsports.com/]=C2=A0is in De=
troit. 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@lan=
caironline.net> wrote:
Am in need of info., where to send my irons ( all three), to be lapped or r=
esurfaced, (or purchase some replacements) this is a 13B so the coolant sea=
l grooves are in the irons.=C2=A0 I am in Lansing Michigan for distance ref=
erence. 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 m=
ore like MANY hrs. of use. I only put 80 hrs. on the hobbs. 20 was ground t=
esting the rest in the air.=C2=A0 Temps ran 190F coolant, 202F oil, pretty =
regular. =C2=A0 Lubrication was 1oz. 2cyc.oil and 1/2 oz. MMOil for every g=
al. fuel.=C2=A0 On prep for Osh. trip the next day, wanted some T&G's, runu=
p normal very strong could not hold back with brakes, aprox. 90% throttle a=
bout foot off runway started missing, set back down and at turn off to taxi=
way eng. quit running, had to lean EC2 all the way to left to get started a=
gain. Checked EM2 bar graph, all in center so not fuel MAP scramble. Thinki=
ng 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 cham=
bers, dissassem. found broken chunk from Apex seal rotor #2. Done crying no=
w need to fix (short summer). David R. Cook RV6A Rotary=C2=A0 Lansing MI
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<body><div id=3D"__MailbirdStyleContent" style=3D"font-size: 10pt;font-fami=
ly: Arial;color: #000000">
                                        <a href=3D"https://chipsmotorsports=
.com/">https://chipsmotorsports.com/</a>&nbsp;is in Detroit. Can lap and re=
nitride the irons. Are your rotor housing okay?<div><br></div><div>Out of c=
uriosity, what size rads do you have for coolant and oil ?</div><div><br></=
div><div class=3D"mb_sig">- Matt Boiteau</div><blockquote class=3D"history_=
container" type=3D"cite" style=3D"border-left-style:solid;border-width:1px;=
 margin-top:20px; margin-left:0px;padding-left:10px;">
                        <p style=3D"color: #AAAAAA; margin-top: 10px;">On 2=
019-08-23 12:54:26 PM, David COOK hoursaway1@comcast.net &lt;flyrotary@lanc=
aironline.net&gt; wrote:</p><div style=3D"font-family:Arial,Helvetica,sans-=
serif"><p style=3D"color: rgb(51, 51, 51);font-family: helvetica,arial,sans=
-serif;font-size: 12pt">Am in need of info., where to send my irons ( all t=
hree), to be lapped or resurfaced, (or purchase some replacements) this is =
a 13B so the coolant seal grooves are in the irons.&#160; I am in Lansing M=
ichigan for distance reference. This was supposed to be a &#34;professional=
&#34; built eng. w/aviation mods. the mods are ok, but the wear in the iron=
s in the combustion area looks more like MANY hrs. of use. I only put 80 hr=
s. on the hobbs. 20 was ground testing the rest in the air.&#160; Temps ran=
 190F coolant, 202F oil, pretty regular. &#160; Lubrication was 1oz. 2cyc.o=
il and 1/2 oz. MMOil for every gal. fuel.&#160; On prep for Osh. trip the n=
ext day, wanted some T&#38;G&#39;s, runup normal very strong could not hold=
 back with brakes, aprox. 90% throttle about foot off runway started missin=
g, 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&#39;t know the symptoms)&#160; changed plugs, no joy, tested coils, al=
l ok, checked comp. no needle jump on 2 chambers, dissassem. found broken c=
hunk from Apex seal rotor #2. Done crying now need to fix (short summer). D=
avid R. Cook RV6A Rotary&#160; Lansing MI</p></div></blockquote>
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