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Date: Fri, 19 Jun 2009 21:10:18 -0700
Message-ID: <1c23473f0906192110m526acc64if2d52db13468eba1@mail.gmail.com>
Subject: Overvoltage solved - tip to remember if yours goes bad
From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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I am pretty sure I solved my overvoltage issue.  I drowned the alternator
with electrical contact cleaner and after it dried I started it up.  Voltage
was now reading 14.0-14.2 volts and it stayed that way throughout a couple
of flights.  That is down from 14.5 to 14.8 volts which was setting off the
alarm on the previous flight (verified with 2 volt meters).  I tried that
based on a hunch after realizing the voltage issue came up about the same
time as a renewed oil leak in the turbo oil return line.

The good thing is that it finally made me get around to re-installing a
proper alternator field switch and is going to keep me more on top of any
oil leaks that pop up.

BTW, that spray can electrical contact cleaner is great stuff.  Four years
ago it also put the magic smoke back into my flap motor and it has worked
great ever since.
Thanks for all the input on the issue!
-- 
David Leonard

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

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<div>I am pretty sure I solved my overvoltage issue.=A0 I drowned the alter=
nator with electrical=A0contact cleaner and after it dried I started it up.=
=A0 Voltage was now reading 14.0-14.2 volts and it stayed that way througho=
ut a couple of flights.=A0 That is down from 14.5 to 14.8 volts=A0which was=
=A0setting off the alarm on the previous flight (verified with 2 volt meter=
s).=A0 I tried that based on a hunch after=A0realizing the voltage issue ca=
me up about the same time as a renewed oil leak in the turbo oil return lin=
e.</div>

<div>=A0</div>
<div>The=A0good thing is that it finally made me get around to re-installin=
g a proper alternator field switch and is going to keep me more on top of a=
ny oil leaks that pop up.</div>
<div>=A0</div>
<div>BTW, that spray can electrical=A0contact cleaner is great stuff.=A0=A0=
Four years ago it also put the magic smoke back into my flap motor and it h=
as worked great ever since.<br clear=3D"all"></div>
<div></div>Thanks for all the input on the issue!<br>-- <br>David Leonard<b=
r><br>Turbo Rotary RV-6 N4VY<br><a href=3D"http://N4VY.RotaryRoster.net">ht=
tp://N4VY.RotaryRoster.net</a><br><a href=3D"http://RotaryRoster.net">http:=
//RotaryRoster.net</a><br>

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