Today's Message Index:
----------------------
 
     1. 05:06 PM - Re: Engine running rough at high power settings? (apatton2)
 
 
 

Message 1


					INDEX
 Back to Main INDEX
					NEXT
 Skip to NEXT Message
	LIST
 Reply to LIST Regarding this Message
		SENDER
 Reply to SENDER Regarding this Message

      
      
Time: 
05:06:57 PM PST US
Subject: 
Re: Engine running rough at high power settings?
From: 
"apatton2" <apatton@alumni.princeton.edu>
      
      
      OK, here I am again with the same problem. Coming into the break today at home
      airport at full throttle / 82% rpm, all of a sudden had the same engine vibe/
      roughness. Pulling throttle back 1/4 did nothing. Pulling prop control back to
      70% completely eliminated it. I waited a couple seconds and moved prop back to
      82%. No vibe anymore, even at that higher prop setting that was an issue just
      10 sec prior.
      
      Next time I am going to mag check it right away... it's one of those situations
      where you want to stop the vibe ASAP when it happens, though, so may be a bit
      too spring-loaded on that.
      
      Dennis, in terms of the sticking valves... is this something that you can use a
      borescope to reveal? I have added MMO and camguard (at different times) to the
      oil as you recommended. Did not see an issue for awhile after that, but again
      this has been super intermittent.
      
      Any thoughts welcome!
      Andrew
      
      --------
      Andrew Patton
      Yak-50
      San Francisco, CA
      
      
      Read this topic online here:
      
      http://forums.matronics.com/viewtopic.php?p=484351#484351
      
      








Other Matronics Email List Services




Post A New Message
  
yak-list@matronics.com
UN/SUBSCRIBE
  
http://www.matronics.com/subscription
List FAQ
  
http://www.matronics.com/FAQ/Yak-List.htm
Web Forum Interface To Lists
  
http://forums.matronics.com
Matronics List Wiki
  
http://wiki.matronics.com
7-Day List Browse
  
http://www.matronics.com/browse/yak-list
Browse Yak-List Digests
  
http://www.matronics.com/digest/yak-list
Browse Other Lists
  
http://www.matronics.com/browse
Live Online Chat!
  
http://www.matronics.com/chat
Archive Downloading
  
http://www.matronics.com/archives
Photo Share
  
http://www.matronics.com/photoshare
Other Email Lists
  
http://www.matronics.com/emaillists
Contributions
  
http://www.matronics.com/contribution









These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.




-- Please support this service by making your Contribution today! --