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JabiruEngine-3300 Fouled Spark Plugs

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n5pb(at)aol.com
Guest

Posted: Thu Nov 29, 2012 4:31 pm Post subject: JabiruEngine-3300 Fouled Spark Plugs

Folks,

  I have a 3300 in an experimental Lightning aircraft. It has 170 hours on it and it seems like every 6 months or 35-50 hours i get fouled sparked plugs.  I'm using the NGK  D9EA plugs.  Since the plugs are cheap, I've just been changing them out.  Just curious if anyone else experiencing this? Any thoughts on resolution?

  Thanks

  Paul "Bear" Bryant

  

  

  --

BobsV35B(at)aol.com
Guest

Posted: Thu Nov 29, 2012 4:37 pm Post subject: JabiruEngine-3300 Fouled Spark Plugs

Good Evening Paul,

  

 Do you have the capability of adjusting the mixture? Sounds like it may be  running too rich.

  

 Happy Skies,

  

 Old Bob

  

  In a message dated 11/29/2012 6:31:57 P.M. Central Standard Time,  n5pb(at)aol.com writes:

  	  Quote: 	
		     Folks,

   I have a 3300 in an experimental Lightning    aircraft. It has 170 hours on it and it seems like every 6 months or 35-50    hours i get fouled sparked plugs.  I'm using the NGK  D9EA    plugs.  Since the plugs are cheap, I've just been changing them    out.  Just curious if anyone else experiencing this? Any thoughts on    resolution?

   Thanks

   Paul "Bear" Bryant

   

   

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

From: JabiruEngine-List Digest Server    <jabiruengine-list(at)matronics.com>

To: JabiruEngine-List Digest List    <jabiruengine-list-digest(at)matronics.com>

Sent: Wed, Nov 28, 2012 3:06    am

Subject: JabiruEngine-List Digest: 1 Msgs - 11/27/12



    



	


 [quote][b]

n5pb(at)aol.com
Guest

Posted: Fri Nov 30, 2012 7:05 am Post subject: JabiruEngine-3300 Fouled Spark Plugs

Thanks Bob,

  I have the Bing Carburetor and no mixture adjustment.  The average CHT's are 273 and EGT's are 1328.

  Paul

  

  

  --

N1BZRich(at)aol.com
Guest

Posted: Fri Nov 30, 2012 7:17 am Post subject: JabiruEngine-3300 Fouled Spark Plugs

Hi Bear,

     Old Bob is probably right on about it being a  little rich.  Remember you can change the main jet in the Bing to adjust  the fuel.  I wish I could remember the main jet size I am now using, but  don't have my engine log book with me at the time.  We also changed Linda's  some time ago.  Give Nick or Pete a call and find out what main jet they  recommend with the Lightning.  I'll be in SYI next week and will  mention it to them.  Will also be at the Light Sport Expo in Sebring with  them in January.  

 Blue Skies,

 Buz

  

  In a message dated 11/30/2012 10:05:41 A.M. Eastern Standard Time,  n5pb(at)aol.com writes:

  	  Quote: 	
		     Thanks Bob,

   I have the Bing Carburetor and no mixture adjustment.  The average    CHT's are 273 and EGT's are 1328.

   Paul

   

   

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

From: BobsV35B <BobsV35B(at)aol.com>

To:    jabiruengine-list <jabiruengine-list(at)matronics.com>

Sent: Thu, Nov    29, 2012 7:37 pm

Subject: Re: JabiruEngine-3300 Fouled    Spark Plugs



      Good Evening Paul,

    

   Do you have the capability of adjusting the mixture? Sounds like it may    be running too rich.

    

   Happy Skies,

    

   Old Bob

    

      In a message dated 11/29/2012 6:31:57 P.M. Central Standard Time, n5pb(at)aol.com (n5pb(at)aol.com)    writes:

    	  Quote: 	
		       Folks,

     I have a 3300 in an experimental      Lightning aircraft. It has 170 hours on it and it seems like every 6 months      or 35-50 hours i get fouled sparked plugs.  I'm using the NGK       D9EA plugs.  Since the plugs are cheap, I've just been changing them      out.  Just curious if anyone else experiencing this? Any thoughts on      resolution?

     Thanks

     Paul "Bear" Bryant

     

     

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

From: JabiruEngine-List Digest Server <jabiruengine-list(at)matronics.com (jabiruengine-list(at)matronics.com)>

To:      JabiruEngine-List Digest List <jabiruengine-list-digest(at)matronics.com (jabiruengine-list-digest(at)matronics.com)>

Sent:      Wed, Nov 28, 2012 3:06 am

Subject: JabiruEngine-List Digest: 1 Msgs -      11/27/12



      



	


 	  Quote: 	
		  



_blank">www.aeroelectric.com

" target="_blank">www.buildersbooks.com

="_blank">www.homebuilthelp.com

_blank">http://www.matronics.com/contribution

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

tp://forums.matronics.com



	




 	  Quote: 	
		  



tp://www.aeroelectric.com/">www.aeroelectric.com

/ href="http://www.buildersbooks.com/">www.buildersbooks.com

http://www.homebuilthelp.com/">www.homebuilthelp.com

p://www.matronics.com/contribution">http://www.matronics.com/contribution

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

s.matronics.com/">http://forums.matronics.com



	
	


 [quote][b]

n5pb(at)aol.com
Guest

Posted: Fri Nov 30, 2012 7:33 am Post subject: JabiruEngine-3300 Fouled Spark Plugs

Thanks Buz,

  We started out with the 280 needle and Nick went to the 278, then 276 and I've been flying it now with the 276 for about 3 years.  Yea, please check which one you and Linda are using.  There's another Lightning owner who bought N325AL and is experiencing the same issue, so I'm not alone here.  

   

  I'll also check with Nick/Pete to see what they are using now.

  Thanks

   

  Bear

  

  

  --

mhubel

Joined: 05 Sep 2009
Posts: 141

Posted: Fri Nov 30, 2012 7:39 am Post subject: JabiruEngine-3300 Fouled Spark Plugs

Paul,

         You might consider that before you change the mixture to save     the plugs, getting EGTs under control in the Jabiru is problematic     and it sounds like yours are good. Jabirus fundamentally run rich     compared to most other engine designs. If you are using 100% avgas     you might use TCP or another lead scavenging additive. They do help     a lot and also reduce build up on valves.

         

     On 11/30/2012 10:17 AM,       N1BZRich(at)aol.com (N1BZRich(at)aol.com) wrote:

     

     [quote]                              Hi Bear,

             Old Bob is probably right on about it being a little           rich.  Remember you can change the main jet in the Bing to           adjust the fuel.  I wish I could remember the main jet size I           am now using, but don't have my engine log book with me at the           time.  We also changed Linda's some time ago.  Give Nick or           Pete a call and find out what main jet they recommend with the           Lightning.  I'll be in SYI next week and will mention it to           them.  Will also be at the Light Sport Expo in Sebring with           them in January.  

         Blue Skies,

         Buz

          

                    In a message dated 11/30/2012 10:05:41 A.M. Eastern             Standard Time, n5pb(at)aol.com (n5pb(at)aol.com) writes:

           [quote]                 Thanks Bob,

                 I have the Bing Carburetor and no mixture                   adjustment.  The average CHT's are 273 and EGT's are                   1328.

                 Paul

                 --

_________________
Mark Hubelbank
N708HU
CH601XL
Jabiru 3300
Rotec TBI 40-3 carb
Sensenich ground adj prop.
240 hr TAF
Pictures at photo.hubbles.com

dwwilt

Joined: 06 Dec 2010
Posts: 192

Posted: Fri Nov 30, 2012 7:39 am Post subject: JabiruEngine-3300 Fouled Spark Plugs

My jets are 250 main and 285 needle.  So far, I have not had any problems with fouled plugs.

   

  

    

   Dennis

   N616DW (Arion Lightning S/N 132)

 

  

  

  --

_________________
Dennis

pete(at)usjabiru.com
Guest

Posted: Fri Nov 30, 2012 8:16 am Post subject: JabiruEngine-3300 Fouled Spark Plugs

Fouled plugs usually come from a rich idle mixture.  Adjust the idle mixture screw to achieve correct idle.    Turn it in (clockwise) to lean the idle mixture.

 

Pete

 

From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of n5pb(at)aol.com

Sent: Friday, November 30, 2012 9:33 AM

To: jabiruengine-list(at)matronics.com

Subject: Re: JabiruEngine-3300 Fouled Spark Plugs



 

Thanks Buz,



We started out with the 280 needle and Nick went to the 278, then 276 and I've been flying it now with the 276 for about 3 years.  Yea, please check which one you and Linda are using.  There's another Lightning owner who bought N325AL and is experiencing the same issue, so I'm not alone here.  



 



I'll also check with Nick/Pete to see what they are using now.



Thanks



 



Bear



--

lbmathias1(at)gmail.com
Guest

Posted: Fri Nov 30, 2012 1:47 pm Post subject: JabiruEngine-3300 Fouled Spark Plugs

Hi Bear,



     I am using the 250 main jet and 285 for the needle jet.  I never had any trouble with fouled plugs but we did adjust the idle mixture screw.



Happy holidays, Linda 



 On Fri, Nov 30, 2012 at 10:33 AM,  <n5pb(at)aol.com (n5pb(at)aol.com)> wrote:

[quote]  Thanks Buz,

  We started out with the 280 needle and Nick went to the 278, then 276 and I've been flying it now with the 276 for about 3 years.  Yea, please check which one you and Linda are using.  There's another Lightning owner who bought N325AL and is experiencing the same issue, so I'm not alone here.  

    

  I'll also check with Nick/Pete to see what they are using now.

  Thanks

   

  Bear

  

  

  --

n5pb(at)aol.com
Guest

Posted: Fri Nov 30, 2012 4:31 pm Post subject: JabiruEngine-3300 Fouled Spark Plugs

Thanks everyone for all your inputs.  I'll go check on a couple items you've all brought up.

  Bear

  

  

  --

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