From Holliday Obrecht - Nov 2008

I have been having a recurrent problem with my fuel selector valve on 
s.n. 130.  Sometimes, when I have the red fuel selector pointed to 
the right tank, it draws off the left tank.

==========================================

Date:         Mon, 17 Nov 2008 21:21:41 -0500
Reply-To:     "Ximango Owners Group (XOG)" <XIMANGO@HOME.EASE.LSOFT.COM>
Sender:       "Ximango Owners Group (XOG)" <XIMANGO@HOME.EASE.LSOFT.COM>
From:         Bruce Schimmel <bruce@SCHIMMEL.COM>
Subject:      From Holliday Obrecht:fuel valve problems
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Hello All,

I have been having a recurrent problem with my fuel selector valve on 
s.n. 130.  Sometimes, when I have the red fuel selector pointed to 
the right tank, it draws off the left tank.  Sometimes, when I have 
the red fuel selector pointed to the left tank, it draws off the 
right tank.  Also, the engine does not quit when the red selector is 
pointed to "off".  But sometimes, the fuel selector valve behaves 
normally.  I am grounded until I figure this out.  Right now, I only 
have usable fuel from one tank because I can draw only from the left 
tank.  I am scared that the fuel may cut off with no way for me to 
control it.  I have inspected the valve and handle linkage.  It turns 
OK and the shaft in the front of the valve appears to turn O.K.  I 
guess something is messed up inside the valve.

I have written messages to Eng. Luis Castilho at Aeromot, but my 
messages keep bouncing back with "unknown recipient".  I am sure I 
used the correct email address.  I have written others at Aeromot and 
all my messages keep bouncing back--I guess their server is down.

Does anyone have a diagram of the fuel valve so I can see how it 
works without removing it first?  Any ideas on how to troubleshoot 
it?  It's quite a job to remove it.

Many thanks,
Holliday Obrecht
=========================================================================
Date:         Tue, 18 Nov 2008 20:27:32 EST
Reply-To:     "Ximango Owners Group (XOG)" <XIMANGO@HOME.EASE.LSOFT.COM>
Sender:       "Ximango Owners Group (XOG)" <XIMANGO@HOME.EASE.LSOFT.COM>
From:         Chuck Cheeseman <XimangoUSA@AOL.COM>
Subject:      Holliday Obrecht:fuel selector valve problems
Comments: cc: lcastilho@aeromot.ind.br
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
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Holliday,
 
First of all, I am sorry you have this problem.  You are a good  customer and
a good Ximango owner.
 
Here is 1) what we at Ximango USA know about your situation  and 2) a way
that I believe we can fix the problem:
 
The fuel selector valve is a complicated multi-valve mechanism which allows 
two fuel inputs, two fuel outputs and two fuel returns, all governed by the 
handle position (LEFT-OFF-RIGHT) and the internal valving of the  mechanism. 
It is possible for this valving to get "out of rig" or  mis-adjusted and to
send the fuel the wrong way.  Aeromot has a bench-test  apparatus that allows
them to test and adjust these valves to insure they are  correct, which they do
on each new Ximango.  We know of no-one who  can test this valve in North
America.
 
In the one previous case we know of where mis-valving happened on a  Ximango
several years after delivery of the aircraft, we arranged to have a new  valve
sent to the owner and the malfunctioning valve sent back  to Aeromot.  This
was done for a standard charge, which included  shipping and the overhaul cost
of the returned part.  (Aeromot took the  mis-adjusted valve back, repaired
and overhauled it, and put it into their spare  parts inventory.)
 
I will communicate with Aeromot and be back ASAP with instructions to  you of
how to do this, and the cost.  The previous cost for this effort was  in the
vicinity of $800, including shipping.  With exchange rates being  what they
are, I will not try to predict the current cost.
 
I am putting this reply on the XOG network so that owners know they have a 
source for solving this kind of fairly-complicated problem.
 
Regards,
 
Chuck
 
 
In a message dated 11/17/2008 9:22:14 P.M. Eastern Standard Time, 
bruce@SCHIMMEL.COM writes:

Hello  All,

I have been having a recurrent problem with my fuel selector valve  on 
s.n. 130.  Sometimes, when I have the red fuel selector  pointed to 
the right tank, it draws off the left tank.   Sometimes, when I have 
the red fuel selector pointed to the left  tank, it draws off the 
right tank.  Also, the engine does not  quit when the red selector is 
pointed to "off".  But sometimes,  the fuel selector valve behaves 
normally.  I am grounded until  I figure this out.  Right now, I only 
have usable fuel from one  tank because I can draw only from the left 
tank.  I am scared  that the fuel may cut off with no way for me to 
control it.  I  have inspected the valve and handle linkage.  It turns 
OK and  the shaft in the front of the valve appears to turn O.K.  I  
guess something is messed up inside the valve.

I have written  messages to Eng. Luis Castilho at Aeromot, but my 
messages keep  bouncing back with "unknown recipient".  I am sure I 
used the  correct email address.  I have written others at Aeromot and  
all my messages keep bouncing back--I guess their server is  down.

Does anyone have a diagram of the fuel valve so I can see how  it 
works without removing it first?  Any ideas on how to  troubleshoot 
it?  It's quite a job to remove it.

Many  thanks,
Holliday Obrecht


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=========================================================================
Date:         Tue, 18 Nov 2008 18:45:34 -0800
Reply-To:     "Ximango Owners Group (XOG)" <XIMANGO@HOME.EASE.LSOFT.COM>
Sender:       "Ximango Owners Group (XOG)" <XIMANGO@HOME.EASE.LSOFT.COM>
From:         Holliday Obrecht <HollidayObrecht@COPPER.NET>
Subject:      Re: Holliday Obrecht:fuel selector valve problems
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"

Chuck,

Thanks very much for the reply.  I will await the response from Aeromot.

Best regards,
Holliday


--- XimangoUSA@AOL.COM wrote:

From:         Chuck Cheeseman <XimangoUSA@AOL.COM>
To:           XIMANGO@HOME.EASE.LSOFT.COM
Subject: Holliday Obrecht:fuel selector valve problems
Date:         Tue, 18 Nov 2008 20:27:32 EST

Holliday,
 
First of all, I am sorry you have this problem.  You are a good  customer and
a good Ximango owner.
 
Here is 1) what we at Ximango USA know about your situation  and 2) a way
that I believe we can fix the problem:
 
The fuel selector valve is a complicated multi-valve mechanism which allows 
two fuel inputs, two fuel outputs and two fuel returns, all governed by the 
handle position (LEFT-OFF-RIGHT) and the internal valving of the  mechanism. 
It is possible for this valving to get "out of rig" or  mis-adjusted and to
send the fuel the wrong way.  Aeromot has a bench-test  apparatus that allows
them to test and adjust these valves to insure they are  correct, which they do
on each new Ximango.  We know of no-one who  can test this valve in North
America.
 
In the one previous case we know of where mis-valving happened on a  Ximango
several years after delivery of the aircraft, we arranged to have a new  valve
sent to the owner and the malfunctioning valve sent back  to Aeromot.  This
was done for a standard charge, which included  shipping and the overhaul cost
of the returned part.  (Aeromot took the  mis-adjusted valve back, repaired
and overhauled it, and put it into their spare  parts inventory.)
 
I will communicate with Aeromot and be back ASAP with instructions to  you of
how to do this, and the cost.  The previous cost for this effort was  in the
vicinity of $800, including shipping.  With exchange rates being  what they
are, I will not try to predict the current cost.
 
I am putting this reply on the XOG network so that owners know they have a 
source for solving this kind of fairly-complicated problem.
 
Regards,
 
Chuck
 
 
In a message dated 11/17/2008 9:22:14 P.M. Eastern Standard Time, 
bruce@SCHIMMEL.COM writes:

Hello  All,

I have been having a recurrent problem with my fuel selector valve  on 
s.n. 130.  Sometimes, when I have the red fuel selector  pointed to 
the right tank, it draws off the left tank.   Sometimes, when I have 
the red fuel selector pointed to the left  tank, it draws off the 
right tank.  Also, the engine does not  quit when the red selector is 
pointed to "off".  But sometimes,  the fuel selector valve behaves 
normally.  I am grounded until  I figure this out.  Right now, I only 
have usable fuel from one  tank because I can draw only from the left 
tank.  I am scared  that the fuel may cut off with no way for me to 
control it.  I  have inspected the valve and handle linkage.  It turns 
OK and  the shaft in the front of the valve appears to turn O.K.  I  
guess something is messed up inside the valve.

I have written  messages to Eng. Luis Castilho at Aeromot, but my 
messages keep  bouncing back with "unknown recipient".  I am sure I 
used the  correct email address.  I have written others at Aeromot and  
all my messages keep bouncing back--I guess their server is  down.

Does anyone have a diagram of the fuel valve so I can see how  it 
works without removing it first?  Any ideas on how to  troubleshoot 
it?  It's quite a job to remove it.

Many  thanks,
Holliday Obrecht