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Jabiru Cooling

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IFLYSMODEL(at)aol.com
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Posted: Tue Oct 30, 2007 5:16 pm Post subject: Jabiru Cooling

Hey guys: Anyone out there redone the cooling on a Jabiru 3300 and gotten  rid of the cooling ducts? I have sent e-mails to Pete at USA Jabiru and Bob at  RL aviation and can not get answers about helping me with new cooling ducts for  my Jabiru. 

     I am willing to try anything that works. My 3300  cooled fine in California, and on the way home to Florida. But once I got here,  the temps went up. (Over 350 at economy cruise)

 Lynn Nelsen



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sales(at)steelframe.com.a
Guest

Posted: Tue Oct 30, 2007 5:49 pm Post subject: Jabiru Cooling

What you gotta do is modify the lower cowl to suck more air  out,

 I can send you a photo if you want to contact  me, But  Do

 not touch the cooling ducts,       also what type of aircraft ?

  

                        Regards

                         Ron Saarinen

 [quote]   ---

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rosestar(at)sonic.net
Guest

Posted: Tue Oct 30, 2007 9:31 pm Post subject: Jabiru Cooling

I just heard a suggestion last weekend that sounds like it might work.  

Add a one inch extension strip of aluminum to the "lip" on the aft 

bottom of the of the lower cowling.  Just this much will help create a 

slip stream in climb and allow the air in the engine compartment to 

escape.  As the cowling is now, there is too much pressure on the bottom 

cowling starting at a 4% climb to allow the air to escape.  This was a 

simple fix by my new builder friend Ray on his old Luscombe, which the 

factory adopted to solve its cooling issue years ago.  He suggested this 

to another 601 owner with a Jabiru 3300.  At least in climb the cooling 

should improve.  Any thoughts?



Brad DeMeo

N601BD

still working and trying to finish soon

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tonyplane(at)bellsouth.ne
Guest

Posted: Tue Oct 30, 2007 10:37 pm Post subject: Jabiru Cooling

This kind of extension worked great on my XL  this past Summer with temps in the mid to hi 90ies.  

 I believe the newer Jab FWF packages for the XL have improved cowling for more cooling, in  addition to the newer engines having improved ram air ducts and more cooling fin  area on the cylinders

  .

 Tony Graziano

 601XL/Jab 3300;  314 hrs

                   Jabiru Cooling        From:              Rosestar (rosestar(at)sonic.net ([email]rosestar(at)sonic.net?subject=Re:%20Jabiru%20Cooling&replyto=472812D2.5080808(at)sonic.net[/email]))        Date:              [b]Tue Oct 30 - 10:31        PM[/b]  	  Quote: 	
		   	  Quote: 	
		  I just heard a suggestion last weekend that sounds like it might work.  

Add a one inch extension strip of aluminum to the "lip" on the aft 

bottom of the of the lower cowling.  Just this much will help create a 

slip stream in climb and allow the air in the engine compartment to 

escape.  As the cowling is now, there is too much pressure on the bottom 

cowling starting at a 4% climb to allow the air to escape.  This was a 

simple fix by my new builder friend Ray on his old Luscombe, which the 

factory adopted to solve its cooling issue years ago.  He suggested this 

to another 601 owner with a Jabiru 3300.  At least in climb the cooling 

should improve.  Any thoughts?



Brad DeMeo

N601BD

still working and trying to finish soon

	
	


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IFLYSMODEL(at)aol.com
Guest

Posted: Wed Oct 31, 2007 2:48 am Post subject: Jabiru Cooling

Thanks for the idea, Ron: I will try it on my 601 HD

 Lynn



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japhillipsga(at)aol.com
Guest

Posted: Thu Nov 01, 2007 10:48 am Post subject: Jabiru Cooling

Tony, do you have a photo of the lip you added to the cowl bottom ? Hope your doing well and maybe this fall I can get over and visit. Thanks, Bill of Georgia 601XL-3300 120 hrs

 

 

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amyvega2005(at)earthlink.
Guest

Posted: Thu Nov 01, 2007 2:09 pm Post subject: Jabiru Cooling

if you go to the jabiru web site, they have dimensions and suggestions on cooling flaps on bottom of cowling.

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amyvega2005(at)earthlink.
Guest

Posted: Thu Nov 01, 2007 2:09 pm Post subject: Jabiru Cooling

if you go to the jabiru web site, they have dimensions and suggestions on cooling flaps on bottom of cowling.

--

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