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P51d arf topflite engine issues - 7/8/2012 12:33 AM   
drl733


 

Posts: 6
Score: 100
Joined: 2/15/2009
Last Login: 7/21/2012
From: middletown, CT, USA
Status: offline 		Was wondering if anyone can help me. I have a topflite p51d arf with a os 75 ax engine. I have had nothing but problems getting this thing to run. Ive been doing alot of research and the inverted engine location is i guess tricky. The engine keep hydro locking. When I do finally get it running engine keeps stalling out on me. I tried leaning out the low end, and put in a hotter plug. It made it better but am not confident in the engine. Ive only flew it twice since I finished building it and today it dead sticked on me and although i landed it, it landed hard and killed my retracts and the supports in the wing. Is it because of the tank location? I got fed up and ordered a os fs110a pumped engine. Will this engine because of the pump solve these issues? And is there any other pointers?

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RE: P51d arf topflite engine issues - 7/8/2012 2:43 AM   
Prop_Washer2


 

Posts: 568
Score: 115
Joined: 8/14/2003
Last Login: 6/17/2013
From: El Paso, TX, USA
Status: offline 		Turn the fusealage upside down, get engine tuned properly, use an OS 4 stroke plug type f, it should be good to go




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RE: P51d arf topflite engine issues - 7/8/2012 3:15 AM   
drl733


 

Posts: 6
Score: 100
Joined: 2/15/2009
Last Login: 7/21/2012
From: middletown, CT, USA
Status: offline 		Thank you for the info. I had someone else tell me that also and someone in my club said to use the "hot" plug. So I did that, and it ran better for one flight and then was back to the same thing. Is there a difference with the four stroke plug?

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RE: P51d arf topflite engine issues - 7/8/2012 3:52 AM   
Prop_Washer2


 

Posts: 568
Score: 115
Joined: 8/14/2003
Last Login: 6/17/2013
From: El Paso, TX, USA
Status: offline 		Yes, I run Type "F" in all of my larger 2-strokes, they will idle till empty. Also if it is hydro locking your tank may be to high in the fuse, it should be centered about even with the needle valve...it should run flawless when all of the pieces of the puzzle are there...


quote:

ORIGINAL: drl733

Thank you for the info. I had someone else tell me that also and someone in my club said to use the "hot" plug. So I did that, and it ran better for one flight and then was back to the same thing. Is there a difference with the four stroke plug?




_____________________________

"I ran out of ideas and altitude at the same time..."


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       Post #: 4

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