PA-28-180 Low power query
			 
			 
			
		
		
		
		
: Have you checked the muffler?  A partial obstruction in the muffler  
: could result in lost power. 
 
: (just a shot in the dark...) 
 
 
: But a good one. I'm still thinking carb but that's without justification. 
 
: I've heard of using exhaust gas analyzers to look at the exhaust  
: for mixture. 
 
: I forget, has someone verified the value timing? 
 
	Valve timing?  Unchecked, but it seems like if it were out by a tooth on the cam, it wouldn't be able to make static RPM... barely  
or not. 
 
	Muffler's been replaced as of last year due to other reasons.  Performance unchanged. 
 
-Cory 
 
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**************************************************  *********************** 
* Cory Papenfuss, Ph.D. Electrical Engineering, PPSEL-IA                * 
* Research Associate, Vibrations and Acoustics Laboratory               * 
* Mechanical Engineering                                                * 
* Virginia Polytechnic Institute and State University                   * 
**************************************************  *********************** 
 
 
		
	
		
		
		
		
		
	
		 
		
	
	
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