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Message-ID: <1c23473f0509102003501baccd@mail.gmail.com>
Date: Sat, 10 Sep 2005 20:03:41 -0700
From: David Leonard <wdleonard@gmail.com>
Reply-To: wdleonard@gmail.com
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Need EM2
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I replaced my fuel pump today and fixed the problem, which was declining=20
fuel flow. It was a really interesting failure mode. It started flowing les=
s=20
and less over the course of an hour, going from 40 gph down to less than 15=
.=20
If I would turn it off for a while (use the other pump), it would come back=
=20
online strong as ever, but drop output a little faster.=20
 I am glad that I had the fuel flow monitor, as I was able to catch it=20
before I ever lost fuel pressure. (good for relations with the wife).=20
Although it is not useful as a fuel totalizer, placing my flow scan on the=
=20
fuel return line has turned out to be a useful tool It can give estimates o=
f=20
fuel usage, is great for fuel management reminders, and picked up this=20
problem early and would be helpful in sorting out other fuel regulator vs.=
=20
filter vs. engine vs. pump issues.
 But what I really need is an EM2 to borrow. After sending back my my EC2 t=
o=20
Tracy for the relay fix and upgrades I just cannot get a good mixture map i=
n=20
place. I need to play with the mixture knob after every power setting=20
change, including when taxiing around.
 It is interesting, in general it idles better now than it ever did, but it=
=20
just cannot tolerate throttle changes.
 It also cannot tolerate idle at altitude.... It always had a problem at=20
high elevation airports, as idle throttle puts the MAP off the lower end of=
=20
the scale. But the new mixture map is especially bad. I was on short=20
approach to Big Bear (6900 MSL) and pulled the throttle to idle and got the=
=20
power I asked for, a non-turning prop as I crossed the numbers. Really good=
=20
thing the wife was not on board!
 So I'm begging here. Does anyone have an EM2 sitting around being unused?=
=20
Tracy? I will make up a testing harness and give it to you in exchange for=
=20
use of the EM2. You can then rent it out...
 Otherwise having a great time flying around. Performance is way up there,=
=20
and will only get better when I put in the ported engine with high=20
compression rotors.... :-)

--=20
Dave Leonard
Turbo Rotary RV-6 N4VY
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/_ht_a/vp4skydoc/index.html

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<div>I replaced my fuel pump today and fixed the problem, which was declini=
ng fuel flow.&nbsp; It was a really interesting failure mode.&nbsp; It star=
ted flowing less and less over the course of an hour, going from 40 gph dow=
n to less than 15.&nbsp; If I would turn it off for a while (use the other =
pump), it would come back online strong as ever, but drop output a little f=
aster.&nbsp;=20
</div>
<div>&nbsp;</div>
<div>I am glad that I had the fuel flow monitor, as I was able to catch it =
before I ever lost fuel pressure. (good for relations with the wife).&nbsp;=
 Although it is not useful as a fuel totalizer, placing my flow scan on the=
 fuel return line has turned out to be a useful tool&nbsp; It can give esti=
mates of fuel usage, is great for fuel management reminders, and picked up =
this problem early and would be helpful in sorting out other fuel regulator=
 vs. filter vs. engine vs. pump issues.
</div>
<div>&nbsp;</div>
<div>But what I really need is an EM2 to borrow.&nbsp; After sending back&n=
bsp;my my EC2 to Tracy for the relay fix and upgrades I just cannot get a g=
ood mixture map in place.&nbsp; I need to play with the mixture knob after =
every power setting change, including when taxiing around.
</div>
<div>&nbsp;</div>
<div>It is interesting, in general it idles better now than it ever did, bu=
t it just cannot tolerate throttle changes.</div>
<div>&nbsp;</div>
<div>It also cannot tolerate idle at altitude....&nbsp; It always had a pro=
blem at high elevation airports, as idle throttle puts the MAP off the lowe=
r end of the scale.&nbsp; But the new mixture map is especially bad.&nbsp; =
I was on short approach to Big Bear (6900 MSL) and pulled the throttle to i=
dle and got the power I asked for, a non-turning prop as I crossed the numb=
ers.&nbsp; Really good thing the wife was not on board!
</div>
<div>&nbsp;</div>
<div>So I'm begging here.&nbsp; Does anyone have an EM2 sitting around bein=
g unused?&nbsp; Tracy?&nbsp; I will make up a testing harness and give it t=
o you in exchange for use of the EM2.&nbsp; You can then rent it out...</di=
v>
<div>&nbsp;</div>
<div>Otherwise having a great time flying around.&nbsp; Performance is way =
up there, and will only get better when I put in the ported engine with hig=
h compression rotors....&nbsp; :-)<br clear=3D"all"><br>-- <br>Dave Leonard=
<br>Turbo Rotary RV-6 N4VY
<br><a href=3D"http://members.aol.com/_ht_a/rotaryroster/index.html">http:/=
/members.aol.com/_ht_a/rotaryroster/index.html</a><br><a href=3D"http://mem=
bers.aol.com/_ht_a/vp4skydoc/index.html">http://members.aol.com/_ht_a/vp4sk=
ydoc/index.html
</a> </div>

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