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HelicopterEngines Plugs Mufflers Fuel › Redline 53 Tuning
02-20-2011 05:48 PM  6 years agoPost 1
KM4BS

rrNovice

Bradenton, Fl.

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Can anyone give me some advice for tuning on this motor outside of putting an OS carb on it. I have 2 of them and they are both acting the same. I tune them for hovering and when I power out they have a good smoke trail and run great. Then when I make a couple of circuits around the field and come back into a hover they are just screaming lean. If I adjust for this it is too rich for power. I have tried Outrage pipes, MP pipes, and TT 3d Pipe(Black). I have tried 1 shim, 2 shims, and 3 shims on the head. I am running 30% fuel and have no tuning issues what-so-ever with my OS motors, just hate to give up on these motors. Thanks, Dave

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02-20-2011 06:57 PM  6 years agoPost 2
BosseN

rrApprentice

Sundbyberg, Sweden

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You might need to adjust the 3rd needle. It's behind the throtle arm.
A friend of mine did that. And it got better.

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02-20-2011 07:05 PM  6 years agoPost 3
TMoore

rrMaster

Cookeville, TN

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Can anyone give me some advice for tuning on this motor outside of putting an OS carb on it. I have 2 of them and they are both acting the same. I tune them for hovering and when I power out they have a good smoke trail and run great. Then when I make a couple of circuits around the field and come back into a hover they are just screaming lean. If I adjust for this it is too rich for power. I have tried Outrage pipes, MP pipes, and TT 3d Pipe(Black). I have tried 1 shim, 2 shims, and 3 shims on the head. I am running 30% fuel and have no tuning issues what-so-ever with my OS motors, just hate to give up on these motors. Thanks, Dave
The problem that we all had is with the carb barrel moving in the carb bore. The fact is that the carb design is what is known as a camming barrel design. If the barrel won't consistently repeat you will not be able to get the engine mixture adjusted with any repeatability. Fix the carb barrel from sticking and moving in one direction or another and you will get the engine to run consistently.

TM

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02-20-2011 08:16 PM  6 years agoPost 4
wifeorheli

rrElite Veteran

reno, nevada usa

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I have stock carb and no problems. I set mine up to push pull so it slides smooth. Theres no need for a os carb. Make sure you have all stock settings you should not have to touch the third needle. Check for air leaks in fuel tubing and in muffler. Also make sure the plastic shim in between the carb and the motor is good and tight.

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02-20-2011 08:42 PM  6 years agoPost 5
TMoore

rrMaster

Cookeville, TN

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Theres no need for a os carb.
I hear that a lot but the evidence points to the contrary.

TM

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02-20-2011 09:01 PM  6 years agoPost 6
Max Headspeed

rrVeteran

Sunny (!)​Livingston, Scotland

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I green threadlocked my middle needle.... sorted

Max Headspeed.

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02-20-2011 11:44 PM  6 years agoPost 7
KM4BS

rrNovice

Bradenton, Fl.

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Redline 53

Thanks guys for your input, I'll keep plugging away at it. I have read the horror stories about the throttle sticking wide open so I put a heavy duty servo on the throttle and I stop the end points before the barrel gets to the end of it's travel. The barrel is very smooth and both of them are almost new so I don't believe it could be sticking. But something is changing for sure. I sealed the carb adaptor to make sure it couldn't leak any air around it but something is causing it to go lean. The needles aren't moving and I can shut it off without changing any settings. I then start it back up and it is fine hovering until I make a couple of circuits then it sounds lean again. I am a mechanic by trade and stuff like this drives me crazy. I HAVE to be able to fix it.LOL Thanks again, Dave

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02-20-2011 11:45 PM  6 years agoPost 8
wifeorheli

rrElite Veteran

reno, nevada usa

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i has just never had a problem i love the motor major power and pared with the high flow pipe crazy

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02-21-2011 02:27 AM  6 years agoPost 9
slickporsche

rrVeteran

American/Philippines

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Redline 53 Tuning

Here is one most people over look. Water in the fuel will do the same thing. You will never be able to get a consistent setting with water in the fuel. Do you live in a really humid climate, or do you store it where it can get water in it. If you use a metal can that is the culprit. Also you can see the water droplets inside a transparent jug.

If you could get some "NEW FRESH FUEL" and try one tankful after cleaning or draining all the old fuel from the system, you should see the difference. Alchohol aborbs water, like the "cleaner picker upper".

The thing is you have tried every other thing, and have checked all fuellines, by pinching one end while submerging in water, and blowing on the other end,or pressurizing it someway. Do not forget the clunkline, and the pressure line from the muffler.

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02-21-2011 02:38 AM  6 years agoPost 10
slickporsche

rrVeteran

American/Philippines

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Redline 53 Tuning

THunder Tiger engines have never been noted for high quality carbs, and the older ones usually leak around the barrel, and like another person posted, the guide for the rotating barrel can be sloppy. Also they take alot of break in and if it is not broken in completly, it will do same. Try the fuel trick first and if that is not it, nor a leaking fuel line, give it more time to break in. It would run decent,but with less power, when set rich if that is the case.

Like everything ThunderTiger sells, it is made in China. They are not a manufacturer, but a marketing company.Their helicopters are made buy a company in China, and marketed around the world by other names, and can be bought cheaper.

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02-21-2011 04:12 AM  6 years agoPost 11
TMoore

rrMaster

Cookeville, TN

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Like everything ThunderTiger sells, it is made in China. They are not a manufacturer, but a marketing company.Their helicopters are made buy a company in China, and marketed around the world by other names, and can be bought cheaper.
TT is a manufacturing company. You may not have gotten the memo.

How's this look?

This is TT's new plant in China and it sure doesn't look like just a marketing company to me. Engines, Servos, Radios, Cars, Helicopters and Airplanes are made in a real TT plant. They're a little low on work right now but as soon as the US economy picks up, they'll be fine.
Here is one most people over look. Water in the fuel will do the same thing. You will never be able to get a consistent setting with water in the fuel. Do you live in a really humid climate, or do you store it where it can get water in it. If you use a metal can that is the culprit. Also you can see the water droplets inside a transparent jug.
You would be shocked at how much water you could actually put in a gallon of fuel and the engine would still run so I wouldn't necessarily depend on that one.
TM

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02-21-2011 04:14 AM  6 years agoPost 12
Tyler

rrElite Veteran

Chicagoland area

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I'm calling slickporsche out on this one... please show us Thunder Tiger products that are sold at lower prices under other names. Thunder Tiger manufactures their products in house.

Water in the fuel line does not sound like a reasonable explanation for this engine's problems, either.

Enjoy things that money can buy IF you don't lose the things money can't buy.

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02-21-2011 08:12 AM  6 years agoPost 13
glydrjocky

rrApprentice

Livermore, CA - USA

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Hatori pipe fixed it for me

I was having the same issues with my Redline running the cy MP5 pipe and found that the Hatori pipe built for the TT .53 was the perfect match. I locktited the third barrel needle (lots of info on where to set the needle end gap on RR), added the .004 shim and ran an OS #7 plug on Coolpower 30%. The MP5 pipe just never seemed to work right for this application. I too am an aircraft mechanic and fought to get this engine running right. Unfortunately I crashed the Sceadu, but the Redline was tuned to perfection.

The only people who truly know where the edge lies, are those who have gone over.

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02-21-2011 12:37 PM  6 years agoPost 14
SC Raptorman

rrVeteran

South Carolina

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Sounds like you are starting off too lean from the beginning of the flight , these motors have to be tuned rich from the start and then let it come in after it gets some heat in the motor and then you can dog it then but if it lean from the beginning and you fly it around it will be too lean then . I set mine where it hardly will run when cold and maybe cut off one time till I get it running and then the mixture comes in when I ready to rock and roll then . Hope this will help .

Oh what a feeling 3D Flying can be
Magnum Fuels

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02-21-2011 05:08 PM  6 years agoPost 15
glydrjocky

rrApprentice

Livermore, CA - USA

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Smoke video

Here is a video cbdane shot of the first Hatori run. Rusty pilot (me) on a shake down flight but the run was very consistent. 1950 headspeed and about 200 degrees head temp after this flight.

http://www.youtube.com/watch?v=dKs0...be_gdata_player

The only people who truly know where the edge lies, are those who have gone over.

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02-21-2011 07:48 PM  6 years agoPost 16
JPhillips

rrVeteran

Waco, TX

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Mine did the same thing until I took the motor out, took the carb off and completely disassembled it. All needles out and soak it in some alcohol in a bowl.

That was my fix.

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