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                           Yak-List Digest Archive
                                      ---
                     Total Messages Posted Mon 01/05/15: 4
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Today's Message Index:
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     1. 11:31 AM - Re: CJ6 Housai Engine start in Coarse pitch ?  (Walter Lannon)
     2. 01:04 PM - Michigan area CJ mechanics?  (barryhancock)
     3. 05:51 PM - Re: CJ6 Housai Engine start in Coarse pitch ?  (Ttail)
     4. 05:51 PM - Re: CJ6 Housai Engine start in Coarse pitch ?  (Ttail)
 
 
 
________________________________  Message 1  _____________________________________


Time: 11:31:22 AM PST US
From: "Walter Lannon" <wlannon@shaw.ca>
Subject: Re: Yak-List: CJ6 Housai Engine start in Coarse pitch ?


For those Huosai's and M14"s residing in warm places it probably does not 
matter whether the prop. is in fine or coarse for start up.

For colder climates shutting down in fine pitch leaves the pitch change 
cylinder full of oil.  That cylinder is under the nose cap right out in the 
cold.   Since these are single acting propellors the only force available to 
move that cold oil out of the cylinder and back through the governor is 
centrifugal force from the counter weights.

At idle or low RPM that force is minimal so depending on the OAT you could 
be sitting for a very long time for that cold (thick) oil to move.   I'm 
sure some have noted that the prop. occasionally quits working at altitude. 
Same reason.   In smooth, stable air the prop. may not need to move to 
maintain constant speed for a period of time then when it does it won't. 
Cold oil is trapped in the cylinder.   That is why the nose cap has a felt 
liner inside.

Walt

-----Original Message----- 
From: Ttail
Sent: Sunday, January 04, 2015 8:58 PM
Subject: Yak-List: CJ6 Housai Engine start in Coarse pitch ?


Some texts I have read call for Housai Engine start with the prop in full 
coarse pitch.

Is this what everybody does ? If so what is the logic.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=436643#436643


________________________________  Message 2  _____________________________________


Time: 01:04:51 PM PST US
Subject: Yak-List: Michigan area CJ mechanics?
From: "barryhancock" <bhancock@worldwidewarbirds.com>


All,

I'm trying to help a client locate a good CJ mechanic in the Michigan area....suggestions?

Thanks!

Barry

--------
Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=436662#436662


________________________________  Message 3  _____________________________________


Time: 05:51:23 PM PST US
Subject: Yak-List: Re: CJ6 Housai Engine start in Coarse pitch ?
From: "Ttail" <ttail@internode.on.net>


Thanks for the explanation Walt.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=436667#436667


________________________________  Message 4  _____________________________________


Time: 05:51:45 PM PST US
Subject: Yak-List: Re: CJ6 Housai Engine start in Coarse pitch ?
From: "Ttail" <ttail@internode.on.net>


Thanks for the explanation Walt.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=436668#436668


 

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