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Date: Sat, 5 Nov 2011 08:32:59 -0700
Message-ID: <CAOFHbnqd8LTGuKLh3DdePNSZho99y-i_LRUwmd-jBnJdMTD2jw@mail.gmail.com>
Subject: Where's the Buttons?
From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>, Rotary Engine <rotaryeng@earthlink.net>
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I just finished tearing down my engine.  I am doing a rebuild for low
compression on one of the faces (determined by a change in the force
required to pull the prop through on that face and a quiet 'ka-chunk'), and
some leaking of combustion gasses into coolant causing occasional loss of
coolant if not checked before every flight.

Results of tear down..
Where are the rubber buttons?  There are no rubber buttons in any of the
corner seals.. not even a residue.  Do they usually disappear??  I am
pretty sure I recall them being there in the past, or am I mistaken?  I
used the strip that comes in Tracy's gasket kit.

I found a side seal that was stuck at one end.  quick clean should fix it.

Coolant issue:  Not sure I am happy with the TES 0-rings.  Yes, they seem
to have been very resistent to the heat.  In general they are in excellent
condition.  Except, they have very little elasticity and have moulded to
the shape of the chanel.  In the hot area, they no longer extend above the
top of the chanel and are more or less flush with the top.  It seems that
in this area they would be exerting minimal sealing pressure there.  I am
thinking about going back to the stock.  Anyone else have a similar
experience or heard of this problem?

Otherwise the engine is in OK shape.  No evidence of overheating.
There are quite of bit of chatter marks on the rotor housings, the rotor
bearings seems pretty well worn but probably re-usable.
-- 
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net

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<div>I just finished tearing down my engine.=A0 I am doing a rebuild for lo=
w compression on one of the faces (determined by a change in the force requ=
ired to pull the prop through on that face and a quiet &#39;ka-chunk&#39;),=
 and some leaking of combustion gasses into coolant causing occasional loss=
 of coolant if not checked before every flight.</div>

<div>=A0</div>
<div>Results of tear down..=A0 </div>
<div>Where are the rubber buttons?=A0 There are no rubber buttons in any of=
 the corner seals.. not even a residue.=A0 Do they usually disappear??=A0 I=
 am pretty sure I recall them being there in the past, or am I mistaken?=A0=
 I used the strip that comes in Tracy&#39;s gasket kit.</div>

<div>=A0</div>
<div>I found a side seal that was stuck at one end.=A0 quick clean should f=
ix it.</div>
<div>=A0</div>
<div>Coolant issue:=A0 Not sure I am happy with the TES 0-rings.=A0 Yes, th=
ey seem to have been very resistent to the heat.=A0 In general they are in =
excellent condition.=A0 Except, they have very little elasticity and have m=
oulded to the shape of the chanel.=A0 In the hot area, they no longer exten=
d above the top of the chanel and are more or less flush with the top.=A0 I=
t seems that in this area they would be exerting minimal sealing pressure t=
here.=A0 I am thinking about going back to the stock.=A0 Anyone else have a=
 similar experience or heard of this problem?</div>

<div>=A0</div>
<div>Otherwise the engine is in=A0OK shape.=A0 No evidence of overheating.=
=A0 There=A0are quite of bit of chatter marks on the rotor housings, the ro=
tor bearings seems pretty well worn but probably re-usable.=A0 <br>-- <br>D=
avid Leonard<br>
<br>Turbo Rotary RV-6 N4VY<br><a href=3D"http://N4VY.RotaryRoster.net">http=
://N4VY.RotaryRoster.net</a><br><a href=3D"http://RotaryRoster.net">http://=
RotaryRoster.net</a><br></div>

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