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Sunday breakfast

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zeprep251(at)aol.com
Guest

Posted: Tue Aug 25, 2009 5:21 pm Post subject: Sunday breakfast

Got caught by a camera on they way to breakfast Sunday.Not that nice a day for flying but at least it's Kolb related.Taken from a friend's Chinook over NE Ohio.

 

                  G.Aman MK-3C Jabiru 2200A 465hrs

 

 

   

 

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Wed Aug 26, 2009 4:13 am Post subject: Re: Sunday breakfast

Gary,



Nice photos of a nice Aussie powered Kolb. In the second photo I see something foreward of the engine that is white in color that looks to be a fairing of some sort. Can you tell us what that is?



Also noticed your extended exhaust system. That surely gets the carbon off the prop. Have you noticed any other difference with the exhaust extension?

_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Wed Aug 26, 2009 4:18 am Post subject: Re: Sunday breakfast

Gary,



Nice photos of a nice Aussie powered Kolb. In the second photo I see something foreward of the engine that is white in color that looks to be a fairing of some sort. Can you tell us what that is?



Also noticed your extended exhaust system. That surely gets the carbon off the prop. Have you noticed any other difference with the exhaust extension?

_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Wed Aug 26, 2009 4:18 am Post subject: Re: Sunday breakfast

Gary,



Nice photos of a nice Aussie powered Kolb. In the second photo I see something foreward of the engine that is white in color that looks to be a fairing of some sort. Can you tell us what that is?



Also noticed your extended exhaust system. That surely gets the carbon off the prop. Have you noticed any other difference with the exhaust extension?

_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

zeprep251(at)aol.com
Guest

Posted: Wed Aug 26, 2009 5:59 am Post subject: Sunday breakfast

Thom,

    The fairing covers completely the aft end of the engine enclosing the distributors, coils and the upper half of the carb.It also directs a smooth air flow to the cooling shrouds.I can't take any credit for the design for it was installed when I purchased the Mark from Will Tatham . I will get some pictures that show it's design clearly,for it is easily removed with 3 an3 bolts in less than a minute.I don't beleive it weighs a pound.

         The exhaust is strictly home brewed.Noise abatement in the cabin was the motivation for this.That part worked well,no power loss BUT,if you have ever felt the air movement coming out of the cabin end of the fuselage tube, just add exhaust to the mix.Had to make a 4" foam gasket in the tube to keep from getting gassed.The chrome tail pipes are VW and they quiet things down OK but after 150 hrs the baffles are gone and I need to unweld the pipes and replace them.

 

                                                                             G.Aman

 

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Wed Aug 26, 2009 6:04 am Post subject: Re: Sunday breakfast

Thanks, G.



I'd very much like to see the photos of the fairing.

_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

zeprep251(at)aol.com
Guest

Posted: Wed Aug 26, 2009 12:10 pm Post subject: Sunday breakfast

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zeprep251(at)aol.com
Guest

Posted: Wed Aug 26, 2009 12:14 pm Post subject: Sunday breakfast

Hope it helps

 

   

 

   

 

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zeprep251(at)aol.com
Guest

Posted: Wed Aug 26, 2009 12:16 pm Post subject: Sunday breakfast

Thom,

 Attached,3 at a time

 

   

 

   

 

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Wed Aug 26, 2009 12:29 pm Post subject: Re: Sunday breakfast

Thanks again. The photos are a great help.



That fairing sure cleans up that area nicely. Do you suppose the carb inlet is getting relatively low pressure air aft of the fairing? I know Bing says not to subject the air inlet to high ram air pressure, presumably due to its potential affect on automatic mixture control.

_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

zeprep251(at)aol.com
Guest

Posted: Wed Aug 26, 2009 1:36 pm Post subject: Sunday breakfast

Thom.

  I don't even want to think about pressure problems.It's bad enough I have to twist the Bing 20 degrees to even up the EGT's.Took a week of sorting it out at first,but all is good now.1390-1400egt 290 cht. I'm afraid to touch it again.

  G.Aman

 

   

 

   

 

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aslsa.rng(at)gmail.com
Guest

Posted: Wed Aug 26, 2009 2:22 pm Post subject: Sunday breakfast

At Rotax classes I even asked Eric Tucker about my idea to put ram air into the carb throat and vent the float bowl to static pressure. Nope, can't do that either. Unfortunately we went to lunch about then and I never got to follow up and ask why it wouldn't work. It seems you can't have pressure compensation and screw around with the pressure. While it's a bit more radical, Zenith makes carbs for Harleys that have an adjustable main jet. Now you're just talking some kind of mechanical linkage to hook it up. 

Just a thought.

 Rick Girard



On Wed, Aug 26, 2009 at 4:20 PM,  <zeprep251(at)aol.com (zeprep251(at)aol.com)> wrote:

[quote]   Thom.

  I don't even want to think about pressure problems.It's bad enough I have to twist the Bing 20 degrees to even up the EGT's.Took a week of sorting it out at first,but all is good now.1390-1400egt 290 cht. I'm afraid to touch it again.

   G.Aman

 

   

 

   

 

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