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Primer Question

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steve(at)sennex.com
Guest

Posted: Fri Jan 19, 2007 4:17 pm Post subject: Primer Question

I am a "new" CJ-6a owner.  The plane isn't new I am new at owning / soon to

be flying one.



Pictures at www.sennex.com/cj6a



The primer has two positions I will illustrate below

Pos #1    	    Neutral		Pos #2



Plane wall

---------

  \			|		  /

   \			|		 /

    \			|		/



cockpit



<--Front of plane 



Which position primes what?

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jgriffint28(at)cox.net
Guest

Posted: Fri Jan 19, 2007 5:34 pm Post subject: Primer Question

Are you talking about the wobble pump?

Jim Griffin

---

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cjpilot710(at)aol.com
Guest

Posted: Fri Jan 19, 2007 6:02 pm Post subject: Primer Question

In a message dated 1/19/2007 7:19:15 P.M. Eastern Standard Time,  steve(at)sennex.com writes:

  

 If it is the primer you're talking about, turn the knob until the little  star lines up with a small screw toward the inside.  This screw is part of  the mounting bracket for the primer.  Also you'll know the primer is closed  and locked if you when you pull up on it, it WILL NOT come up.

  

 If it is the wobble pump you're talking about, it does not matter where the  handle is placed.

  

 Jim "Pappy" Goolsby

  	  Quote: 	
		  -->    Yak-List message posted by: "Stephen J. Byers"    <steve(at)sennex.com>



I am a "new" CJ-6a owner.  The plane    isn't new I am new at owning / soon to

be flying one.



Pictures at    www.sennex.com/cj6a



The primer has two positions I will illustrate    below

Pos #1            Neutral           Pos #2



Plane wall

---------

  \               |             /

   \            |           /

    \               |        /



cockpit



<--Front of plane    



Which position primes  what?

	


  [quote][b]

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steve(at)sennex.com
Guest

Posted: Fri Jan 19, 2007 6:05 pm Post subject: Primer Question

Not the wobble pump this is the primer. Under pilots right elbow



Pos #1 would be when it is turned counter clockwise and pos#2 would be when

it is turned clockwise.



--

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wlannon(at)cablerocket.co
Guest

Posted: Fri Jan 19, 2007 7:31 pm Post subject: Primer Question

Stephen;



The primer used in the C J is identical to the standard Russian primer used 

in theYak, Sukhoi, etc. It is designed as a dual purpose hand fuel pump. The 

center position is off - where it must be at all times when not in use.



One side is plumbed to the intake manifold for priming prior to start. The 

other side is plumbed into the carburetor to act as an emergency fuel supply 

in the event of failure of the engine driven fuel pump. This description 

applies to all installations (that I know of) EXCEPT for the CJ.



The CJ has a separate emergency fuel wobble pump so does not require the 

lower capacity primer pump. It has been modified for the CJ installation by 

the addition of a bypass line so that both sides prime the manifold.



So use clockwise or c'clockwise to prime but be sure it is down and centered 

when you are finished.



Walt

---

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