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Problems with O.S. 91 Surpass II w/pump - 7/24/2012 6:40 PM   
micael69


 

Posts: 5
Score: 100
Joined: 7/24/2012
Last Login: 5/22/2013
From: Taranto, ITALY
Status: offline 		hello all. I hope to get some help in this prestigious forum for connoisseurs. I have a problem with my O.S. 91 SuperPass II with pump. I moved the engine from one model to another model, I wish to state that the engine has just made 10 flights, and then 'again, on my new model performs well when it goes right all right, full power, no problem, when it goes into the top loop in the engine loses power and then again, even while maneuvering screw when upside down in the engine bay right now is fine. other even when they are with half power and give full power for about 3 seconds, the engine does not respond then suddenly goes at full speed. because all these problems with a paradigm shift? I hasten to add that I checked 2 times the tank and it is' okay. the propeller on the first model was a sulk 3blade according to a 2 blade of the size specified by the user of the engine, then adjust. the flight test and 'went perfect but I did not do any maneuver in flight, only regular flight as you can see from the video. Who gives me an advice to adjust my 91 best?
http://www.youtube.com/watch?v=IuJO3d4wPvQ&feature=youtube_gdata_player&noredirect=1

< Message edited by Bax -- 7/30/2012 3:40 PM >

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RE: Problems with O.S. 91 Surpass II w/pump - 7/30/2012 3:41 PM   
Bax


 

Posts: 17300
Score: 169
Joined: 4/26/2002
Last Login: 5/24/2013
From: Champaign, IL, USA
Status: offline 		When you are running the engine at full throttle, what RPM are you are observing on the tachometer? What is your propeller size?

_____________________________

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

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RE: Problems with O.S. 91 Surpass II w/pump - 8/3/2012 4:37 PM   
micael69


 

Posts: 5
Score: 100
Joined: 7/24/2012
Last Login: 5/22/2013
From: Taranto, ITALY
Status: offline 		the RPM is about 9500-9800 the spinner is 13x9 2blade because on another model the engine was ok with spinner 12x8 3 blade.

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All Forums >> Glow Engines, Gas Engines, Fuel &amp; Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> O.S. Engines Support >> Problems with O.S. 91 Surpass II w/pump
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