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Constant Speed Prop leaking Grease

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rv6awingman(at)gmail.com
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Posted: Fri May 03, 2013 9:36 am Post subject: Constant Speed Prop leaking Grease

I've been flying my RV-6A behind a Hartzell CS prop for 3 years now and about 250 hours since new.    For about a year, I've been noticing grease escaping where the  prop halfs meet. I notice the grease on the back of one prop blade. Is this something that I should be concerned about?  Prop has never been over greased.  Marty

  [quote][b]

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Matt Dralle
Site Admin

Joined: 08 Nov 2005
Posts: 26320
Location: Livermore CA USA

Posted: Sat May 04, 2013 9:07 am Post subject: Constant Speed Prop leaking Grease

At 10:35 AM 5/3/2013 Friday, you wrote:

 	  Quote: 	
		  I've been flying my RV-6A behind a Hartzell CS prop for 3 years now and about 250 hours since new.    For about a year, I've been noticing grease escaping where the  prop halfs meet. I notice the grease on the back of one prop blade. Is this something that I should be concerned about?  Prop has never been over greased. 

Marty


	


Hey Marty,



I have a Hartzell on my IO-390 powered RV-8.  I bought it new from Van's about 1999 and then it sat behind my couch until 2010 and I finally mounted it.  At installation, I lubed it per the manual.  I flew it 172 hours the first year and didn't have any problems with it, with the one exception of the small grease splatters on the back of the blades like you describe.  Never got worse during that time, maybe got a little better.  I attributed my splatter to the fact that it sat for so long and the seals got a little flat in storage for so long.



Matt

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Matt Dralle



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