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Engine problems, stuck in Red Bluff, CA

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ghf4986(at)gmail.com
Guest

Posted: Sun Jun 09, 2013 8:40 am Post subject: Engine problems, stuck in Red Bluff, CA

Ignition grounds?



Sent from an IPad 



On Jun 9, 2013, at 9:12 AM, Sonja Englert <paqs345(at)gmail.com (paqs345(at)gmail.com)> wrote:

 



Hello Everyone,

  

 I am stuck at the Red Bluff airport because me Rotax 912 is running really rough and I have no idea what it could be. It is worst below 3000 rpm, smoother at higher rpm. Switching tanks and boost pump on/off has no effect. Switching ignition hs no effect. I don't see anything loose, leaking or otherwise wrong. It has enough fuel and oil and the spark plugs look good.

   It has done this once before and after several startups and short runs on the ground it smoothed out and run fine for the next 5 h. Now it is worse and not smoothing out. 

  

 Does anyone have any ideas?

  

 Sonja

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331bp

Joined: 03 Oct 2011
Posts: 9

Posted: Sun Jun 09, 2013 9:22 am Post subject: Engine problems, stuck in Red Bluff, CA

Check the welch plugs on the top of the carbs. I had one come loose which causes that diaphragm to get out of sync with the other carb.

Hope that helps,

Bill Coleman

On Jun 9, 2013, at 11:09 AM, Sonja Englert <paqs345(at)gmail.com (paqs345(at)gmail.com)> wrote:

[quote]Hello Everyone,

  

 I am stuck at the Red Bluff airport because me Rotax 912 is running really rough and I have no idea what it could be. It is worst below 3000 rpm, smoother at higher rpm. Switching tanks and boost pump on/off has no effect. Switching ignition hs no effect. I don't see anything loose, leaking or otherwise wrong. It has enough fuel and oil and the spark plugs look good.

  It has done this once before and after several startups and short runs on the ground it smoothed out and run fine for the next 5 h. Now it is worse and not smoothing out. 

  

 Does anyone have any ideas?

  

 Sonja

   	  Quote: 	
		  

	
   

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freedom4life(at)xtra.co.n
Guest

Posted: Sun Jun 09, 2013 1:27 pm Post subject: Engine problems, stuck in Red Bluff, CA

Hi Sonja

  

 Check the plugs for soot on the insulator.  If you donâ€™t have a second  set of plugs to try then close up the plug gap to about 18 â€“ 20 thou.  This  will prevent the spark tracking down the insulator.  The other thing you  might look for is an HT lead that has rubbed through on the block  somewhere.  I have had both issues happen to me.

  

 Cliff

    

  From: Sonja Englert (paqs345(at)gmail.com) 

 Sent: Monday, June 10, 2013 3:09 AM

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

 Subject: Engine problems, stuck in Red Bluff,  CA

  



  Hello Everyone,

  

 I am stuck at the Red Bluff airport because me Rotax 912 is running really  rough and I have no idea what it could be. It is worst below 3000 rpm, smoother  at higher rpm. Switching tanks and boost pump on/off has no effect. Switching  ignition hs no effect. I don't see anything loose, leaking or otherwise wrong.  It has enough fuel and oil and the spark plugs look good.

 It has done this once before and after several startups and short runs on  the ground it smoothed out and run fine for the next 5 h. Now it is worse and  not smoothing out. 

  

 Does anyone have any ideas?

  

 Sonja

[quote]



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w7ikt(at)fly-web.us
Guest

Posted: Sun Jun 09, 2013 3:04 pm Post subject: Engine problems, stuck in Red Bluff, CA

Check the compression.

         After running look for the             cooler cylinder with one of the point               temperature meters

              God Bless

           Bob (W7IKT) Carol (N5CBQ) Heiser

       On 6/9/2013 10:09 AM, Sonja Englert wrote:

     

     [quote]       Hello Everyone,

        

       I am stuck at the Red Bluff airport because me Rotax 912 is         running really rough and I have no idea what it could be. It is         worst below 3000 rpm, smoother at higher rpm. Switching tanks         and boost pump on/off has no effect. Switching ignition hs no         effect. I don't see anything loose, leaking or otherwise wrong.         It has enough fuel and oil and the spark plugs look good.

       It has done this once before and after several startups and         short runs on the ground it smoothed out and run fine for the         next 5 h. Now it is worse and not smoothing out. 

        

       Does anyone have any ideas?

        

       Sonja

        	  Quote: 	
		  

	
       

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everettmcollier(at)yahoo.
Guest

Posted: Sun Jun 09, 2013 5:57 pm Post subject: Engine problems, stuck in Red Bluff, CA

Sonja,

We live in Lake California, about 10 miles north of Red Bluff.

I have no idea what the problem is, but we are close, only about 18 mi by car.  If you could use help with tools or anything please call 530-347-4988.  Should be happy to assist in any way I can.  Can not fly down though my nose gear is under repair.



Everett 

Sent from my iPad.

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paqs345(at)gmail.com
Guest

Posted: Mon Jun 10, 2013 6:45 am Post subject: Engine problems, stuck in Red Bluff, CA

Hello Everyone,



Fortunately I'm back home.



My problem turned out to be an induction system leak through the

primer system. I was able to make a temporary fix by disabling the

primer and fly it home after a few hours delay for troubleshooting.



Thanks everyone for the suggestions.



Sonja

On 6/9/13, Sonja Englert <paqs345(at)gmail.com> wrote:

 	  Quote: 	
		   Hello Everyone,



 I am stuck at the Red Bluff airport because me Rotax 912 is running really

 rough and I have no idea what it could be. It is worst below 3000 rpm,

 smoother at higher rpm. Switching tanks and boost pump on/off has no

 effect. Switching ignition hs no effect. I don't see anything loose,

 leaking or otherwise wrong. It has enough fuel and oil and the spark plugs

 look good.

 It has done this once before and after several startups and short runs on

 the ground it smoothed out and run fine for the next 5 h. Now it is worse

 and not smoothing out.



 Does anyone have any ideas?



 Sonja

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