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Date: Thu, 24 Mar 2011 15:21:07 -0500
Message-ID: <AANLkTin0doa4jjASf=a+FZrw9LcD-27ZLJC1MctnFmKg@mail.gmail.com>
Subject: Re: [FlyRotary] Compression woes ...
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=001517477fe2b1b2eb049f4037d9

--001517477fe2b1b2eb049f4037d9
Content-Type: text/plain; charset=windows-1252
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Jeff,

If you have doubts, do a compression test.  You can use a regular
compression gauge if you remove the schrader valve.  That way you will know
how bad/good things are.  My guess is you may have a bad apex seal.  That
will affect two chambers.

Mark

On Thu, Mar 24, 2011 at 2:30 PM, Jeff Whaley <jwhaley@datacast.com> wrote:

>  I have noticed a couple weak spots in my compression sequence during
> propeller pull through.
>
> The weak spots are better when the engine is hot Vs cold and my ear tells
> me the weak spots are accompanied by a hiss in the intake =85 good ones h=
ave a
> pop in the exhaust.  Does this mean that side seals or corner seals are
> questionable?
>
>
>
> *Jeff Whaley*
>
>
>
>
> __________ Information from ESET NOD32 Antivirus, version of virus
> signature database 5983 (20110324) __________
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--001517477fe2b1b2eb049f4037d9
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<div>Jeff, </div>
<div>=A0</div>
<div>If you have doubts, do a compression test.=A0 You can use a regular co=
mpression gauge if you remove the schrader valve.=A0 That way you will know=
 how bad/good=A0things are.=A0 My guess is you may have a bad apex seal.=A0=
 That will affect two chambers.</div>

<div>=A0</div>
<div>Mark<br><br></div>
<div class=3D"gmail_quote">On Thu, Mar 24, 2011 at 2:30 PM, Jeff Whaley <sp=
an dir=3D"ltr">&lt;<a href=3D"mailto:jwhaley@datacast.com">jwhaley@datacast=
.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0=
px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div lang=3D"EN-US" vlink=3D"purple" link=3D"blue">
<div>
<p class=3D"MsoNormal">I have noticed a couple weak spots in my compression=
 sequence during propeller pull through.</p>
<p class=3D"MsoNormal">The weak spots are better when the engine is hot Vs =
cold and my ear tells me the weak spots are accompanied by a hiss in the in=
take =85 good ones have a pop in the exhaust.=A0 Does this mean that side s=
eals or corner seals are questionable?</p>

<p class=3D"MsoNormal">=A0</p>
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 12pt">Jeff Whaley</span=
></b><br><br><span style=3D"FONT-SIZE: 10pt; COLOR: navy"></span></p>
<p class=3D"MsoNormal">=A0</p></div><br><br>__________ Information from ESE=
T NOD32 Antivirus, version of virus signature database 5983 (20110324) ____=
______<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a hr=
ef=3D"http://www.eset.com/" target=3D"_blank">http://www.eset.com</a><br>
<br><font face=3D"Arial" color=3D"black" size=3D"1">This message, and the d=
ocuments attached hereto, is intended only for the addressee and may contai=
n privileged or confidential information. Any unauthorized disclosure is st=
rictly prohibited. If you have received this message in error, please notif=
y us immediately so that we may correct our internal records. Please then d=
elete the original message. Thank you.<br>
</font></div></blockquote></div><br>

--001517477fe2b1b2eb049f4037d9--