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BobbyPaulk(at)comcast.net
Guest

Posted: Wed Jun 10, 2015 5:43 am Post subject: Tilt

List 



Below is the exact wording (copied and pasted ) from "Tuning the Bing Carburetor on the Jabiru Engine"



"As the flow speeds into the intake manifold it is split left and right by

a symmetrical airfoil called a diffuser. If, for instance, the airflow spirals in a clockwise

movement as it progresses through the carb throat it will pick up fuel at the bottom of

the throat and begin moving the fuel to the left. Before the fuel is evenly spread

through the incoming air stream the flow hits the diffuser and splits left and right. The

result is that the fuel /. Air mixture delivered to the left side (cylinders 2,4,6) has more

fuel in it (richer) than that delivered to the right side (1,3,5). The left side will be leaner

â€“ therefore hotter EGTâ€™s. By rotating the bottom of the carb toward the right (hot side)

you move the fuel pickup toward the right."

I am confused about what they are saying. IF the left side is "richer" and has more fuel in it it should be COOLER.



The left side will NOT be leaner. The last sentence should be correct.



So I tilt the BOTTOM of the Carb toward  my hot cylinder #6 and should cool it a bit??

bobby  

 [quote][b]

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ftyoder(at)yoderbuilt.com
Guest

Posted: Wed Jun 10, 2015 6:39 am Post subject: Tilt

As I understand it, you have only one hot cyl. #6 . If you  tilt the bottom of the carb to the left all three cylinders should run cooler,  2,4 and 6. If 2 and 4 are good, you may have another issue with #6. Maybe an  induction leak or???

  

 Tim



   From:  owner-jabiruengine-list-server(at)matronics.com  [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of  BobbyPaulk(at)comcast.net

Sent: Wednesday, June 10, 2015 6:43  AM

To: Server, JabiruEngine-List Digest

Subject:  Tilt

 

  List 



 Below is the exact wording (copied and pasted )  from "Tuning the Bing Carburetor on the Jabiru Engine"



 



 



 "As the flow speeds into the intake manifold it  is split left and right by

a symmetrical airfoil called a diffuser. If, for  instance, the airflow spirals in a clockwise

movement as it progresses  through the carb throat it will pick up fuel at the bottom of

the throat and  begin moving the fuel to the left. Before the fuel is evenly spread

through  the incoming air stream the flow hits the diffuser and splits left and right.  The

result is that the fuel /. Air mixture delivered to the left side  (cylinders 2,4,6) has more

fuel in it (richer) than that delivered to the  right side (1,3,5). The left side will be leaner

– therefore hotter EGT’s. By  rotating the bottom of the carb toward the right (hot side)

you move the fuel  pickup toward the right."

 



 I am confused about what they are saying. IF the  left side is "richer" and has more fuel in it it should be COOLER.



 The left side will NOT be leaner. The last  sentence should be correct.



 



 So I tilt the BOTTOM of the Carb toward  my  hot cylinder #6 and should cool it a bit??

 



 bobby  

 	  Quote: 	
		  



ist">http://www.matronics.com/Navigator?JabiruEngine-List

ics.com

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matronics(at)rtist.nl
Guest

Posted: Wed Jun 10, 2015 7:18 am Post subject: Tilt

There must be a typo there. I think       where it now reads "The left side will be leaner", it should have       read "The right side will be leaner". 

       

       This document came from Pete Krotje (USJabiru) who definitely       knows what he's talking about. He wrote a shorter version which       does explain it properly. Must be a slip of the pen.

       

       Rob

       

       On 6/10/2015 3:43 PM, BobbyPaulk(at)comcast.net (BobbyPaulk(at)comcast.net) wrote:

     

     [quote]                List 

         

         Below is the exact wording           (copied and pasted ) from "Tuning the Bing Carburetor on the           Jabiru Engine"

         

         

         

         

         

         "As the flow speeds into the           intake manifold it is split left and right by

           a symmetrical airfoil called a diffuser. If, for instance, the           airflow spirals in a clockwise

           movement as it progresses through the carb throat it will pick           up fuel at the bottom of

           the throat and begin moving the fuel to the left. Before the           fuel is evenly spread

           through the incoming air stream the flow hits the diffuser and           splits left and right. The

           result is that the fuel /. Air mixture delivered to the left           side (cylinders 2,4,6) has more

           fuel in it (richer) than that delivered to the right side           (1,3,5). The left side will be leaner

           â€“ therefore hotter EGTâ€™s. By rotating the bottom of the carb           toward the right (hot side)

           you move the fuel pickup toward the right."

         

         

         I am confused about what they are           saying. IF the left side is "richer" and has more fuel in it           it should be COOLER.

         

         The left side will NOT be leaner.           The last sentence should be correct.

         

         

         

         So I tilt the BOTTOM of the Carb           towardÂ  my hot cylinder #6 and should cool it a bit??

         

         

         bobbyÂ  

         

       

        	  Quote: 	
		  

	
     [b]

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