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Propeller not responding on ground at 70%

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YAKY52

Joined: 08 Oct 2013
Posts: 8
Location: Bergamo Italy

Posted: Wed Sep 10, 2014 2:39 pm Post subject: Propeller not responding on ground at 70%

Hello Yakkers,



I need advices on this subject...



Airplane didn't fly for 45days no issue last time I flew And I ran the engine.



After an oil change I did the engine run, normal warm up 40Âº /120Âº, cycling the prop at 70% nothing happened, ZERO REACTION, but oil Pressure slightly  drop.



2nd run I tried to look the screen in the hub nothing found,

82/85% power, same condition, prop cycling down to 56%.



Intermediate setting 72 % -80%  irregular dropping  in percentage.



I have tough either pressure problem on governor, some kind of dirt somewhere...the p

rop cable is in place and secure.



Any advise or idea would be very appreciate.

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richard.goode(at)russiana
Guest

Posted: Wed Sep 10, 2014 11:51 pm Post subject: Propeller not responding on ground at 70%

I suggest you check the small filter for the oil going into the governor –

if this gets clogged, the governor cannot operate correctly.



Richard Goode Aerobatics

Rhodds Farm

Lyonshall

Hereford

HR5 3LW



Tel:  +44 (0) 1544 340120

Fax: +44 (0) 1544 340129

www.russianaeros.com



--

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GeorgeCoy

Joined: 02 Dec 2010
Posts: 310

Posted: Thu Sep 11, 2014 3:53 am Post subject: Propeller not responding on ground at 70%

I suspect that he may have the blades frozen in the hub. Remove the dome on the piston on the front of the prop and see if you can rotate the blades freely



Sent from my iPad



 	  Quote: 	
		   On Sep 10, 2014, at 6:39 PM, "YAKY52" <vulavula(at)libero.it> wrote:

 

 

 

 Hello Yakkers,

 

 I need advices on this subject...

 

 Airplane didn't fly for 45days no issue last time I flew And I ran the engine.

 

 After an oil change I did the engine run, normal warm up 40Âº /120Âº, cycling the prop at 70% nothing happened, ZERO REACTION, but oil Pressure slightly  drop.

 

 2nd run I tried to look the screen in the hub nothing found,

 82/85% power, same condition, prop cycling down to 56%.

 

 Intermediate setting 72 % -80%  irregular dropping  in percentage.

 

 I have tough either pressure problem on governor, some kind of dirt somewhere...the p

 rop cable is in place and secure.

 

 Any advise or idea would be very appreciate.

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=430323#430323

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yakxx21

Joined: 10 Jun 2012
Posts: 22

Posted: Sat Nov 15, 2014 9:21 am Post subject: Re: Propeller not responding on ground at 70%

I had the same problem and then found the rubber seal in the Oil filter (having cleaned it during an oil change) had stretched and didnt seal properly..nipped down the hardware shop and got some 1mm rubber sheet and made a new one...put it in...perfect  !!

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