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HelicopterThunder TigerOther › TT39 setting needles?
06-03-2004 02:38 AM  13 years agoPost 1
brian12

rrApprentice

Chicago

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Where do u guys set ur high speed needles and low speed needles when breaking in a new engine?

After breaking in the engine where do u guys set ur high speed needles and low speed needles when breaking in a new engine?


Thanks for any of your comments

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06-03-2004 03:09 AM  13 years agoPost 2
brian12

rrApprentice

Chicago

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never mind post above just anserewed my question

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06-03-2004 04:32 AM  13 years agoPost 3
Glenn in Den

rrKey Veteran

Longmont, Colorado area

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Which above post answered your question?

There are two schools of thought on these engines. You may have signed up for the wrong "class."

TT engines are a bit different. They have to be run stupid rich. Filthy, Donald Trump, Bill Gates, rich. And the SMALL (so-called) idle needle is the critical one. I would start out at LEAST 4 turns on each. I think mine was about 5.5 on the second engine before the temperature behaved. Don't turn the large needle more than 4 out or it will FALL out.

Think of the small needle as a direct link to temperature. If the engine is purring like a kitten and running real nice, you are overheating it and you WILL burn it up.

Do a search. There is a massive amount of info on this engine and the similar pain TT50.

For the first 3 to 6 tanks, run it so rich that it practically wants to shut off. Then start leaning. Most folks end up around 3 and 3 (or lower on the large needle) after initial break-in. Of course there are a LOT of variables so watch those temps!!!

Do NOT use castor oil - never mind what the manual says.



Glenn.

I'm not really an R/C pilot, I stayed in a Holiday Inn Express last n

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06-04-2004 01:00 AM  13 years agoPost 4
ASchlem

rrNovice

St.Louis

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Do a search, I found plenty of opinions. Can't rember break in but after 2 cases of fuel i'm at 23/4 on top and 3 on bottom And lovin it.......

Aaron

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06-04-2004 05:01 AM  13 years agoPost 5
brian12

rrApprentice

Chicago

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thanks for the info. very helpful

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06-07-2004 12:03 AM  13 years agoPost 6
jdowns

rrNovice

San Diego, CA

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I use 3 1/2 on the main and 3 on the idle.

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HelicopterThunder TigerOther › TT39 setting needles?
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