From: "William Schertz wschertz343@gmail.com" <flyrotary@lancaironline.net>
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Date: Mon, 22 Apr 2024 09:50:54 -0600
Message-ID: <CAOgm+a4h7=Xyr9stb57BrGiJWEuz8YAQbeyAVnQignReNCP2qQ@mail.gmail.com>
Subject: Re: [FlyRotary] Freeze Plugs...
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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However it is done, make sure it is done right, When I was in initially
ground running my engine tied down at full throttle to tune the EC-2, a
freeze plug blew out, dumping coolant. Coated the windshield instantly.  I
shut down immediately, and found that the cowling was on fire due to glycol
hitting hot exhaust pipe. Put it out with extinguisher.

Incident probably caused by much earlier testing where I was running the
water pump on a test stand with plain water to determine flow rates.
Although I drained the water after the test, enough remained to cause a
build up of corrosion. Shipped the engine back to Bruce Turrentine and he
reassembled the engine, installed new freeze plugs and had no more problems=
.
Bill Schertz

On Sun, Apr 21, 2024 at 8:09=E2=80=AFPM Doug Lomheim rv9flyer13b@gmail.com =
<
flyrotary@lancaironline.net> wrote:

> What have you all done about changing out freeze plugs in the end housing=
?
>
>
> Is that going to be a dealer item, or are there other sources you=E2=80=
=99ve
>  used?
>
> thx.
>
>
> Doug
>

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<div dir=3D"ltr">However it is done, make sure it is done right, When I was=
 in initially ground running my engine tied down at full throttle to tune t=
he EC-2, a freeze plug blew out, dumping coolant. Coated the windshield ins=
tantly.=C2=A0 I shut down immediately, and found that the cowling was on fi=
re due to glycol hitting hot exhaust pipe. Put it out with extinguisher.<di=
v><br></div><div>Incident=C2=A0probably caused by much earlier testing wher=
e I was running the water pump on a test stand with plain water to determin=
e flow rates. Although I drained the water after the test, enough remained =
to cause a build up of corrosion. Shipped the engine back to Bruce Turrenti=
ne and he reassembled the engine, installed new freeze plugs and had no mor=
e problems.</div><div>Bill Schertz</div></div><br><div class=3D"gmail_quote=
"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Apr 21, 2024 at 8:09=E2=80=
=AFPM Doug Lomheim <a href=3D"mailto:rv9flyer13b@gmail.com">rv9flyer13b@gma=
il.com</a> &lt;<a href=3D"mailto:flyrotary@lancaironline.net">flyrotary@lan=
caironline.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padd=
ing-left:1ex"><div style=3D"overflow-wrap: break-word;"><font size=3D"4">Wh=
at have you all done about changing out freeze plugs in=C2=A0the end housin=
g? =C2=A0</font><div><font size=3D"4"><br></font></div><div><font size=3D"4=
">Is that going to be a dealer item, or=C2=A0are there other sources you=E2=
=80=99ve =C2=A0used? =C2=A0</font></div><div><font size=3D"4"><br></font></=
div><div><font size=3D"4">thx.</font></div><div><font size=3D"4"><br></font=
></div><div><font size=3D"4"><br></font></div><div><font size=3D"4">Doug=C2=
=A0</font></div></div></blockquote></div>

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