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Engine Mount Alignment

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tcmoses(at)earthlink.net
Guest

Posted: Mon Oct 22, 2007 12:22 pm Post subject: 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.

 [quote]   ---

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hgmckay

Joined: 23 May 2006
Posts: 397

Posted: Wed Oct 24, 2007 5:18 pm Post subject: Engine Mount Alignment

Tim:   

<![if !supportEmptyParas]> <![endif]>  

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.   

<![if !supportEmptyParas]> <![endif]>  

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.  

<![if !supportEmptyParas]> <![endif]>  

Email me your fax and I’ll shoot the flap schematic to you.  

<![if !supportEmptyParas]> <![endif]>  

Hugh McKay  

Allegro 2000  

Rotax 912UL  

N661WW  

hgmckay(at)bellsouth.net (hgmckay(at)bellsouth.net)   

<![if !supportEmptyParas]> <![endif]>  

-----Original Message-----

 From: owner-allegro-list-server(at)matronics.com [mailto:owner-allegro-list-server(at)matronics.com]On Behalf Of TIM MOSES

 Sent: Monday, October 22, 2007 4:22 PM

 To: allegro-list(at)matronics.com

 Subject: Re: Engine Mount Alignment  

<![if !supportEmptyParas]> <![endif]>  

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 (tcmoses(at)earthlink.net) 

    

To: allegro-list(at)matronics.com (allegro-list(at)matronics.com)   

Sent: Monday, October 01, 2007 6:35 PM  

Subject: Engine Mount Alignment  

<![if !supportEmptyParas]> <![endif]>  

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.  [quote]<![if !supportEmptyParas]> <![endif]><![if !supportEmptyParas]> <![endif]>href="http://www.matronics.com/Navigator?Allegro-List">http://www.matronics.com/Navigator?Allegro-Listhref="http://forums.matronics.com">http://forums.matronics.com<![if !supportEmptyParas]> <![endif]><![if !supportEmptyParas]> <![endif]><![if !supportEmptyParas]> <![endif]>          - The Allegro-List Email Forum -   --> http://www.matronics.com/Navigator?Allegro-List              - NEW MATRONICS WEB FORUMS -   --> http://forums.matronics.com<![if !supportEmptyParas]> <![endif]>[b]

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tcmoses(at)earthlink.net
Guest

Posted: Wed Oct 24, 2007 6:10 pm Post subject: 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 

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