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Old 06-19-2007 | 11:33 AM
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bruce88123
 
Joined: Nov 2004
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From: Memphis, TN
Default RE: Prop Question!!

ORIGINAL: squeaky penguin

I just recived an old PT-60 from a friend at my field. Not long after I ordered this engine, http://www2.towerhobbies.com/cgi-bin...&I=LXFV79&P=ML and this prop, http://www2.towerhobbies.com/cgi-bin...&I=LXZ979&P=ML. I noticed after I ordered this prop that it is ment for 4 strokes. After getting everything installed I started up the engine and noticed an unusual amount of vibrations. Could this be caused by the wrong prop or an unbalanced prop? Any help will be greatly appreciated.
I don't think the size or shape or "type" should be a problem as long as it fits properly on the crankshaft and is properly balanced. Also don't try to idle too slowly. A lot of mass swinging out there. It is on the upper end of the size limits and you might want to try a slightly smaller prop either in diameter or pitch, at least during break-in.

A lot of engine for a PT-60 IMO.
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