Today's Message Index:
----------------------
1. 06:18 PM - Re: Engine Mount Alignment (Hugh McKay III)
2. 06:50 PM - Re: Rotax 912ULS overheating issues (Hugh McKay III)
3. 07:10 PM - Re: Engine Mount Alignment (TIM MOSES)
Message 1
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| Subject: | Engine Mount Alignment |
Tim:
Yes, I have the schematic for the Allegro 2000 Flaps control connection. I
will be glad to fax it to you if you will send me your fax number. Did you
buy your Allegro as a used airplane? Do you have any assembly instructions?
If so you might want to talk with the previous owner about the Flaps.
I do know that the flap control rod (vertical rod just behind the pilot) has
too much play in it if you install it per the assembly instructions. The
upper connection of this rod to the torque tube lever has too much axial
rotation play due to the pivotal bearing used at that end. This allows the
lower end where the drive screw is located to rotate slightly every time the
flap motor is activated. It will rotate one way going up, and the other way
going down. This slight rotation causes the attached leaf spring limit
switch activator to rotate as well. If this rotation is enough it will
rotate the leaf actuator enough to actually miss the limit switch. I had
this problem. To solve it, I simply shimmed the upper connection with
washers to end up with a tight fit between the fork and the bearing (i.e.
I took out the play). That solved the problem. Sorry, I cant help you
with your engine mounting problem.
Email me your fax and Ill shoot the flap schematic to you.
Hugh McKay
Allegro 2000
Rotax 912UL
N661WW
hgmckay@bellsouth.net <mailto:hgmckay@bellsouth.net>
-----Original Message-----
From: owner-allegro-list-server@matronics.com
[mailto:owner-allegro-list-server@matronics.com]On Behalf Of TIM MOSES
Sent: Monday, October 22, 2007 4:22 PM
Subject: Re: Allegro-List: Engine Mount Alignment
Does any one have an electrical schmatic for the Allegro flap system? My
flaps will go down but will not go back up.
----- Original Message -----
From: TIM MOSES <mailto:tcmoses@earthlink.net>
Sent: Monday, October 01, 2007 6:35 PM
Subject: Allegro-List: Engine Mount Alignment
Has any one had a problem getting the engine mount level relative to the
leveled fuselage (per the assembly instructions)? I currently have about
3.5 degrees of down thrust. If I shorten the upper mount supports, I am
bending the lower engine rubber mounts quite a bit. Could the mount be bent
from a hard landing? I did not build this plane.
href="http://www.matronics.com/Navigator?Allegro-List">http://www.matronics.
com/Navigator?Allegro-List
href="http://forums.matronics.com">http://forums.matronics.com
Message 2
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| Subject: | Rotax 912ULS overheating issues |
Dale:
I do not fly an Allegro 2000 with a Rotax 912ULS, but I do fly an Allegro
2000 with a Rotax 912UL in North Carolina. I can tell you this from
experience, you don't want to keep an Allegro 2000 with a 912UL running long
on the ground (especially on a hot day). If the plane is not flying and not
getting the ram air (80 to 100 mph air) forced in through the engine
compartment, the CHT will climb very quickly. Because the engine is fully
coweled in the Allegro, and has very little frontal opening for air to pass
over the engine (especially with a spinner and the large connection flange),
and the fact that the radiator location is just opposite of where it should
be (in my humble opinion), the engine can quickly overheat while on the
ground. In the air flying, everything is fine on my plane. No problems.
I can only imagine what you are dealing with having the same (small)
radiator with a 912ULS, and floats on top of every thing else. I don't
believe Fantasy Air has given very much thought to this problem, and I don't
expect you will get much help from the US Distributor. My suggestion is don'
t stay on the ground longer than necessary, leave the spinner off, get as
much air as possible in, around the engine, and through the radiator, and if
there is any way possible, put a larger radiator on the plane. Also, the
fact that you are in a hot humid climate (Florida) doesn't help things with
this small radiator.
Hugh McKay in North Carolina
Allegro 2000
Rotax 912UL
N661WW
-----Original Message-----
From: owner-allegro-list-server@matronics.com
[mailto:owner-allegro-list-server@matronics.com]On Behalf Of
Threadcharmer@cs.com
Sent: Tuesday, October 23, 2007 2:48 PM
Subject: Allegro-List: Rotax 912ULS overheating issues
Is anyone else out there flying an Allegro 2000 with a 100 hp Rotax 912ULS?
I'm interested in finding out about any overheating issues. I just
completed my kit on amphibious Shark Floats after 18 months and can't get
around the pattern more than twice before having to land with the temp
creeping up close to 275F. I've added more intake area to the front of the
cowling, including one set of openings that allows fresh air to flow
directly over the cylinders. I've also added a 2" naca vent to the top of
the cowling with a hose flowing directly to the radiator. In my last
attempt, I removed the spinner (I was using a 10" UHS) and the temperature
came down about 10 degrees.
Most of the Allegros I've heard of are using the 80hp Rotax, which in my
opinion, can get away with the smaller radiator they left us space for. Any
further thoughts on the subject?
Dale Hackworth
splashlanding@comcast.net
Allegro 2000
N306AD
Hobe Sound, FL
Message 3
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| Subject: | Re: Engine Mount Alignment |
Hugh,
Thanks for the tip on shimming the flap push rod end. That is what I
think caused my problem. It turns out that I had 2 broken limit switch
wires. I have the flap connection drawing and instructions. What I was
looking for was a real electrical schematic of the of the entire system,
but it looks like it is no longer needed. In regard to the engine
mounting problem...I ordered a new mount just to be sure.
Tim
----- Original Message -----
From: Hugh McKay III
To: allegro-list@matronics.com
Sent: Wednesday, October 24, 2007 9:18 PM
Subject: RE: Allegro-List: Engine Mount Alignment
Tim:
Yes, I have the schematic for the Allegro 2000 Flaps control
connection. I will be glad to fax it to you if you will send me your fax
number. Did you buy your Allegro as a used airplane? Do you have any
assembly instructions? If so you might want to talk with the previous
owner about the Flaps.
I do know that the flap control rod (vertical rod just behind the
pilot) has too much "play" in it if you install it per the assembly
instructions. The upper connection of this rod to the torque tube lever
has too much axial rotation "play" due to the pivotal bearing used at
that end. This allows the lower end where the drive screw is located to
rotate slightly every time the flap motor is activated. It will rotate
one way going up, and the other way going down. This slight rotation
causes the attached leaf spring limit switch activator to rotate as
well. If this rotation is enough it will rotate the leaf actuator enough
to actually miss the limit switch. I had this problem. To solve it, I
simply "shimmed" the upper connection with washers to end up with a
"tight " fit between the fork and the bearing (i.e. I took out the
"play"). That solved the problem. Sorry, I can't help you with your
engine mounting problem.
Email me your fax and I'll shoot the flap schematic to you.
Hugh McKay
Allegro 2000
Rotax 912UL
N661WW
hgmckay@bellsouth.net
-----Original Message-----
From: owner-allegro-list-server@matronics.com
[mailto:owner-allegro-list-server@matronics.com]On Behalf Of TIM MOSES
Sent: Monday, October 22, 2007 4:22 PM
To: allegro-list@matronics.com
Subject: Re: Allegro-List: Engine Mount Alignment
Does any one have an electrical schmatic for the Allegro flap system?
My flaps will go down but will not go back up.
----- Original Message -----
From: TIM MOSES
To: allegro-list@matronics.com
Sent: Monday, October 01, 2007 6:35 PM
Subject: Allegro-List: Engine Mount Alignment
Has any one had a problem getting the engine mount level relative to
the leveled fuselage (per the assembly instructions)? I currently have
about 3.5 degrees of down thrust. If I shorten the upper mount
supports, I am bending the lower engine rubber mounts quite a bit.
Could the mount be bent from a hard landing? I did not build this
plane.
href="http://www.matronics.com/Navigator?Allegro-List">http://www.matro
nics.com/Navigator?Allegro-Listhref="http://forums.matronics.com">http:
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