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From: ktradcliff@comcast.net
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Sealling oil pan motor mount hole
Date: Tue, 22 Jul 2008 23:55:03 +0000
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Unfortunately Kelly,  the plate would have to be drilled for the bolt and the pan does not set flush with the plate in this area.  There is about a 1/2 inch space, that if the bolt were torqued to tight it could possibly distort the pan and cause sealing problems.


 -------------- Original message ----------------------
From: "Kelly Troyer" <keltro@att.net>
> Keith,
>    In an ideal situation you could find an 1984-5 RX7 13B pan that does not have 
> that 
> extra bolt hole in it as the mounts were still on the front cover...........But 
> since you 
> probably cannot find one I have a question.........Since I am not totally 
> familar with the
> CCI mount plate is the spot on the plate under the extra oil pan bolt open or 
> would 
> you have to drill a hole for access to the threaded boss in the center housing 
> ?..........
>   I do not remember what the bolt size is (probably 12 or 14 mm) but if this 
> hole fits 
> flush with the CCI plate then a large headed bolt and copper gasket might seal 
> it !!
> 
> FWIW
> --
> Kelly Troyer 
> "Dyke Delta"_13B ROTARY Engine 
> "RWS"_RD1C/EC2/EM2 
> "Mistral"_Backplate/Oil Manifold 
> 
> 
> 
> 
> 
> -------------- Original message from ktradcliff@comcast.net: -------------- 
> 
> 
> > I am using the stock 13b oil pan along with the cci motor mount. The stock 13b 
> > oil pan has 3 motor mount holes that are utilized when mounted in the car. In 
> > aircraft application with the cci mount only two of the three bolt holes are 
> > used. I am looking for the best method to seal this extra hole. Are some 
> > choosing to weld this hole (although this is a very important piece to the bed 
> > mount and needs to maintain a good seal, and a bad weld may warp the thin 
> pan)? 
> > Or would a locking nut and bolt with some type of gasket maker do the trick? 
> > Possible some type of expandable plug like the ones used in a boats? Not sure 
> > what to do looking for the best answer. 
> > 
> > Thanks 
> > Keith 
> > RV-7A 
> > 13b 
> > With all of Tracy's stuff 
> > CCI Engine mount 
> > 
> > -- 
> > Homepage: http://www.flyrotary.com/ 
> > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html 


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From:    "Kelly Troyer" <keltro@att.net>
To:    "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject:    [FlyRotary] Sealling oil pan motor mount hole
Date:    Tue, 22 Jul 2008 22:52:13 +0000
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<DIV></DIV>
<DIV>Keith,</DIV>
<DIV>&nbsp;&nbsp; In an ideal situation you could find an 1984-5 RX7 13B pa=
n that does not have that </DIV>
<DIV>extra bolt hole in it as the mounts were still on the front cover.....=
......But since you </DIV>
<DIV>probably cannot find one I have a question.........Since I am not tota=
lly familar with the</DIV>
<DIV>CCI mount plate is the spot on the plate under the extra oil pan bolt =
open or would </DIV>
<DIV>you have to drill a hole for access to the threaded boss in the center=
 housing ?..........</DIV>
<DIV>&nbsp; I do not remember what the bolt size is (probably 12 or 14 mm) =
but if this hole fits </DIV>
<DIV>flush with the CCI plate then a large headed bolt and copper gasket mi=
ght seal it !!</DIV>
<DIV>&nbsp;</DIV>
<DIV>FWIW</DIV>
<DIV class=3Dsignature id=3Dsignature>--<BR>Kelly Troyer <BR>"Dyke Delta"_1=
3B ROTARY Engine <BR>"RWS"_RD1C/EC2/EM2 <BR>"Mistral"_Backplate/Oil Manifol=
d <BR><BR><BR><BR></DIV><!--&lt;BR&gt;-->
<DIV>&nbsp;</DIV>
<BLOCKQUOTE style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #101=
0ff 2px solid">-------------- Original message from ktradcliff@comcast.net:=
 -------------- <BR><BR><BR>&gt; I am using the stock 13b oil pan along wit=
h the cci motor mount. The stock 13b <BR>&gt; oil pan has 3 motor mount hol=
es that are utilized when mounted in the car. In <BR>&gt; aircraft applicat=
ion with the cci mount only two of the three bolt holes are <BR>&gt; used. =
I am looking for the best method to seal this extra hole. Are some <BR>&gt;=
 choosing to weld this hole (although this is a very important piece to the=
 bed <BR>&gt; mount and needs to maintain a good seal, and a bad weld may w=
arp the thin pan)? <BR>&gt; Or would a locking nut and bolt with some type =
of gasket maker do the trick? <BR>&gt; Possible some type of expandable plu=
g like the ones used in a boats? Not sure <BR>&gt; what to do looking for t=
he best answer. <BR>&gt; <BR>&gt; Thanks <BR>&gt; Keith <BR>&gt; RV-7A <BR>=
&gt; 13b <BR>&gt; With=20all of Tracy's stuff <BR>&gt; CCI Engine mount <BR=
>&gt; <BR>&gt; -- <BR>&gt; Homepage: http://www.flyrotary.com/ <BR>&gt; Arc=
hive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html =
</BLOCKQUOTE>
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