3W 106 sagging in inverted or knife edge flight.  
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3W 106 sagging in inverted or knife edge flight. - 7/24/2008 1:02:15 PM   
HoverLoW



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Hey guys, there“s a final veredict to this problem?

Mine do that to and I'd like to stop it.

I read some posts saying about a aluminum block to the 3W to replace that reed block plastick one, but I couldn't, find it. Does anybody knows something about it?





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RE: 3W 106 sagging in inverted or knife edge flight. - 7/24/2008 2:12:26 PM   
Steve



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Usually venting the carb inside the fuse is a good fix. If knife edges is still a problem, using a snorkle or baffling the motor helps.

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/24/2008 3:00:11 PM   
drewbags



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I have the same problem with my DL100. Tried putting a carb plate on it with no change, so I am now going to put a tube on the plate and a vent into the fuz.

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/24/2008 7:30:05 PM   
airbornrc


 

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aircraft international has the aluminum blocks in stock. They are listed in the parts section. Basically the alum block gets warm and evaportates any fuel that may puddle in there.

Mark

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/25/2008 6:25:18 AM   
Dan767



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Here's the part number from Aircraft Internationals website: 3WRCHAL

http://www.aircraftinternational.com Go to accessories and click on carb mounting and induction housing. I have one, works great.

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/25/2008 12:34:41 PM   
HoverLoW



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quote:

ORIGINAL: Steve

Usually venting the carb inside the fuse is a good fix. If knife edges is still a problem, using a snorkle or baffling the motor helps.



Hi Steve! How I can venting the carb inside the fuse? And sorry my bad english, but what is a snorkle?

Thank you guys. I will see the aluminum block. But is really a good idea get one?

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/25/2008 4:03:27 PM   
HoverLoW



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How to order in AI? I searched for something, but they don't seems to keep an on line order system...

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/25/2008 4:44:00 PM   
mtwister


 

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I went through all of this recently and I did everything suggested. Then, I finally ordered the aluminum block kit and put it on. The motor ran like it never has before. It now is the smoothest running engine I have ever owned. It took 10 minutes to install the block. Aircraft international rocks, they got the block to me in 2 days!

http://www.aircraftinternational.com/

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/25/2008 11:04:21 PM   
HoverLoW



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I will go for it too. It's not safe make 3D manuvers with the engine that way...

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/26/2008 3:41:44 AM   
rcdude7


 

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quote:

ORIGINAL: HoverLoW

How to order in AI? I searched for something, but they don't seems to keep an on line order system...


Call them, if they don't answer you can leave a message for them to return your call. I have called at some strange hours to order and more often than not, someone answers the phone.

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/26/2008 1:43:07 PM   
HoverLoW



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They answered my e-mail. I need to send them by e-mail or fax my cred card information. Can I trust them? It's safe to me?

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RE: 3W 106 sagging in inverted or knife edge flight. - 7/26/2008 2:58:36 PM   
JoeAirPort



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I'd say it's safe. They've been around a while.

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RE: 3W 106 sagging in inverted or knife edge flight. - 8/4/2008 4:23:30 PM   
HoverLoW



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Ok, guys!! I will try the aluminum block (already ordered from AI) and the TBM CF carb plate. Does anybody have any issue about it to share?

< Message edited by HoverLoW -- 8/4/2008 5:53:01 PM >


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RE: 3W 106 sagging in inverted or knife edge flight. - 8/19/2008 8:32:58 PM   
HoverLoW



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Ok. I have the aluminum block in place and its works really great. No more sagging problems to my 3W.

It's a cheap mod that worth more than the dollars we pay for it.

It's strange, but in the AI site, they are selling the plastic block U$ 10.00 more expensive than the aluminum one.

So, I don't know why 3W is not selling this mod like standard in all their engines.

I will try the CF plate from Troy too.

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RE: 3W 106 sagging in inverted or knife edge flight. - 8/19/2008 9:59:22 PM   
rcdude7


 

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I think some, if not all AI 106 engines come with this block now. I have compared the plastic with the aluminum model and it looks as though the fit around the reed cage is now very close and leaves no room for fuel to puddle as before. If they made the plastic block to the same dimensions of the new model it would probably work as well.

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RE: 3W 106 sagging in inverted or knife edge flight. - 8/19/2008 10:15:06 PM