Super Tigre G2300 problem.  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> SuperTigre Engines Support >> Super Tigre G2300 problem.
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Super Tigre G2300 problem. - 5/6/2008 7:32:08 PM   
lechuza


 

Posts: 42
Joined: 6/28/2007
From: Panama, PANAMA
Status: offline 		Hello, I have installed a Super Tigre G2300 upsidedown on my Great Planes Giant Supersporter, because the manual recalls to install the engine that way.Any way, I am having hard time to keep the engine running at idle.I tried 5% and 15% nitro fuel, Short Hot to Short medium hot glow plugs like O.S. #3 and O.S. #8 respectively, Enya short hot glow plug #3, and late a Fox miracle long medium hot glow plug, which with this last one, I got worse engine running,(spurs, irregular R.P.M., low to high transition very bad, and some kind of detonation) why???I read that this glow plug can be used either on 4-stroke and 2-stroke glow engines.The O.S. and Enya shorts glow plugs works fine but there is still the idle running problem.Also, the engine manual recomends the use of a general purpose long R/C glow plug.

Also, every time the engine quits, there is a continiously droping of fuel coming out from the carburaetor, which makes me believe that some flooding happens(my opinion).Any way, the engine starts well, and most of the iddle to hight transition goes pretty good, the problem is when go to idle with the engine upside down and that drops of fuel coming out of the carburetor intake.

What can be done to correct those things mentioning above?, Has anyone with upsidedown installed glow engines develop those problems, specially with the Super Tigre engines? Should I try other type of long glow plug?, What about the ones with idle bar?

Thanks, Isaias G.
       Post #: 1

RE: Super Tigre G2300 problem. - 5/6/2008 10:34:03 PM   
lechuza


 

Posts: 42
Joined: 6/28/2007
From: Panama, PANAMA
Status: offline 		Hello, the tank center line is located a bit above the carb. center line ( about 1" above), but the construction of this ARF model and the location on the engine mount as indicated on the manual makes this situation as a consecuence.You can download this ARF model from towerhobbies.com or the great planes web page and they not say nothing about this situation, just the assembly and location instructions.

Isaias G.

(in reply to RCPAUL)
       Post #: 2

RE: Super Tigre G2300 problem. - 5/7/2008 3:47:02 PM   
Bax


 

Posts: 12272
Joined: 4/26/2002
From: Champaign, IL, USA
Status: offline 		The SuperTigre G2300 should run very well, upright or inverted. If you have difficulties getting it to run inverted, it may not be fully-broken-in, have the carburetor adjusted correctly, or have the fuel tank improperly-located. A full breakin will take about 2 gallons' worth of running before it's complete. Once the engine's well-broken-in, the carburetor can be adjusted. The instructions for adjusting the carburetor are in a post at the top of this forum. The fuel tank should be located so that the centerline of the fuel tank is level with the center of the carburetor or about 8-10 mm lower (about 3/8" .

The fuel used for the G2300 should contain NO LESS than 18% oil by volume. We'd suggest a good-quality synthetic/castor blend. Nitro can be 0%-10%, but 5% is usually the best compromise. The glow plug can be an O.S. #8, #A3, or Type F. That depends upon how well your engine runs on the various plugs.

When ANY model engine that uses a glow plug is run inverted, operation can become problematic. That's because the glow plug becomes the lowest point in the fuel system, and can be flooded by fuel at low-to-mid throttle settings. Sometimes a carburetor adjustment can cure this, but sometimes you have to add an on-board glow plug battery that will light the plug at low throttle settings.

If the fuel level in the tank is above the needle valve, then fuel can siphon out when the engine's not running. That's entirely normal. You must either run the engine in flight enough to lower the level in the tank below that point, use a clamp, or drain some excess fuel from the tank between flights. That will stop the dripping. Closing the carburetor may not work at all...depending upon the idle mixture setting and how far the carb's set to close. Closing the carburetor will cut off air to kill the engine, but doesn't cut off fuel.

One last thing: If you are not a SuperTigre service representative, please do not reply to other peoples' posts. RCU rules state that only the manufacturer's representative is permitted to answer questions in the Support forums. These are also not discussion forums. Posts not made by the Support Staff will be deleted.


Thank you.

_____________________________

Bill Baxter, Manager Hobby Services/Futaba Service/North America
3002 N. Apollo Dr. Ste. 1 Champaign, IL 61822 USA
Service Phone: 217 398-0007
Email: hobbyservices@hobbico.com

(in reply to lechuza)
       Post #: 3

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> SuperTigre Engines Support >> Super Tigre G2300 problem.
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