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Air leak from both gear handles

 
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glipaz



Joined: 11 Jan 2011
Posts: 110
PostPosted: Wed Oct 14, 2015 8:57 pm    Post subject: Air leak from both gear handles Reply with quote
I have a small leak coming from the rear gear handle in the neutral position. Now I also started getting air from the front gear handle in both neutral and down positions. I have not put it on jacks yet to put it in up position. Any ideas?

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JL2A



Joined: 07 Apr 2015
Posts: 113
Location: Australia
PostPosted: Mon Oct 26, 2015 2:51 pm    Post subject: Re: Air leak from both gear handles Reply with quote
could be the handles themselves (corroded or worn selector / body interface). I've had that on the flap handles, had them machined flat again and worked ever since then. Doug Sapp sells stainless ones to avoid this problem.

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dsavarese0812(at)bellsout
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PostPosted: Mon Oct 26, 2015 4:29 pm    Post subject: Air leak from both gear handles Reply with quote
I'd be suspicious of either an actuator or actuators or the diverter ir shuttle valves more so than the gear selectors themselves.
Troubleshoot them one by one by removing the B nut from the UP side of each actuator one at a time. With the main air on, put some saliva on the elbow after you remove the B nut. If it bubbles, air is passing by the seals in that actuator. Do this to each actuator. I'll bet you'll find at least one is leaking past the internal seals.
Dennis

From: JL2A <info(at)flyingwarbirds.com.au>
To: yak-list(at)matronics.com
Sent: Monday, October 26, 2015 6:51 PM
Subject: Re: Air leak from both gear handles


--> Yak-List message posted by: "JL2A" <info(at)flyingwarbirds.com.au (info(at)flyingwarbirds.com.au)>

could be the handles themselves (corroded or worn selector / body interface). I've had that on the flap handles, had them machined flat again and worked ever since then. Doug Sapp sells stainless ones to avoid this problem.


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glipaz



Joined: 11 Jan 2011
Posts: 110
PostPosted: Sun Nov 01, 2015 2:59 pm    Post subject: Re: Air leak from both gear handles Reply with quote
Dennis, I tested all three gear actuators and all are good; no leaks on the upside. How do I know if it's the handle vs a valve?

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glipaz



Joined: 11 Jan 2011
Posts: 110
PostPosted: Wed Dec 09, 2015 9:03 pm    Post subject: Re: Air leak from both gear handles Reply with quote
Repair completed. Replaced rear cockpit gear valve assy and leak stopped.

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JL2A



Joined: 07 Apr 2015
Posts: 113
Location: Australia
PostPosted: Sun Dec 13, 2015 3:27 am    Post subject: Re: Air leak from both gear handles Reply with quote
Did you pull apart the selector to see what the problem was?

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