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The 914 saga

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f.kyle(at)sympatico.ca
Guest

Posted: Thu Sep 27, 2012 6:11 am Post subject: The 914 saga

            The Grand Design is slowly unfolding at an infuriatingly slow pace. MY purpose initially was to be able to disassemble the Main Instrument Panel. First of all I hate lying on my back with bits of solder sticking to my sweater and my head between myriad rudder pedals at the museum. Secondly the advance of digital instruments may have meant many mods to stay current.

            So the main panel mounts with bolts backwards and affixed to the panel. The brilliant scheme to include face-to-face fawcet washers isolated if from some fuselage vibrations. I have also arranged a Flight sub-panel portside and a systems sub-panel in the starboard half. The later inclusion of digital arrays made it several pounds lighter but wiring got complex.

            It was chasing a wiring fault that prompted removing the panels for clarity whereupon it was found the Turbo Motor mounting bolts were loose - I dunno.  Any way in the course of this complication the clamp holding the spring-loaded control cable let go. It was clamped to a fitting in the pulley which moves it to adjust the turbo gate - and, was set correctly at the factory, not to be touched. I dunno, I never touched it. However, when the fitting let go, the cable naturally sprang back into the firewall (leaving a short tail), and the entry ferrule danced merrily into a cranny, celebrating its new-found freedom.  Are you still with me?

            The fuselage sits under a temporary ‘tent’ on the lawn, begging to be re-assembled and I sit forlornly contemplating how to (a) extend the cable tail against the spring (and clamp it at its exact previous point), (b) manoeuvre the cable end back into its locking fitting - at arm’s length, and then (c) replace the three panels with their 25 or so connections.....all this before the weather deteriorates further. I smell snow.

            If you’ve got this far, you probably have contemplated this tiny setback and more likely know how to conquer it. If so, I beg your knowledge.

            In the meantime give that cable lock one more gronch.....

Ferg

C-FFGG

914 mono CS prop

 [quote][b]

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davidjoyce(at)doctors.org
Guest

Posted: Thu Sep 27, 2012 6:54 am Post subject: The 914 saga

Fergus, That widget holding the cable in the wheel on top 

of the turbo control unit has a disc under the screw. Make 

sure it didn't lose any bits  while it went round the 

cockpit. You can take the spring off at the turbo end and 

then simply pull the cable back and fix it. If you have 

fired up the electrics you will know that the waste gate 

cycles when you first switch on. The right position for it 

is with the master switch on, the throttle at closed and 

the wastegate closed ( ie with the cable pulled right 

back). You can do minor adjustments at the other end of 

the cable.I have reassembled / readjusted/ fiddled around 

with that fixing a number of times and never had a problem 

yet. Best of luck! It WILL BE WORTH IT! David, G-XSDJ

On Thu, 27 Sep 2012 10:13:37 -0400

  <f.kyle(at)sympatico.ca> wrote:

 	  Quote: 	
		              The Grand Design is slowly unfolding at an 

infuriatingly slow

 pace. MY purpose initially was to be able to disassemble 

the Main Instrument

 Panel. First of all I hate lying on my back with bits of 

solder sticking to

 my sweater and my head between myriad rudder pedals at 

the museum. Secondly

 the advance of digital instruments may have meant many 

mods to stay current.

 

            So the main panel mounts with bolts backwards 

and affixed to the

 panel. The brilliant scheme to include face-to-face 

fawcet washers isolated

 if from some fuselage vibrations. I have also arranged a 

Flight sub-panel

 portside and a systems sub-panel in the starboard half. 

The later inclusion

 of digital arrays made it several pounds lighter but 

wiring got complex.

 

            It was chasing a wiring fault that prompted 

removing the panels

 for clarity whereupon it was found the Turbo Motor 

mounting bolts were loose

 - I dunno.  Any way in the course of this complication 

the clamp holding the

 spring-loaded control cable let go. It was clamped to a 

fitting in the

 pulley which moves it to adjust the turbo gate - and, 

was set correctly at

 the factory, not to be touched. I dunno, I never touched 

it. However, when

 the fitting let go, the cable naturally sprang back into 

the firewall

 (leaving a short tail), and the entry ferrule danced 

merrily into a cranny,

 celebrating its new-found freedom.  Are you still with 

me?

 

            The fuselage sits under a temporary 'tent' on 

the lawn, begging

 to be re-assembled and I sit forlornly contemplating how 

to (a) extend the

 cable tail against the spring (and clamp it at its exact 

previous point),

 (b) manoeuvre the cable end back into its locking 

fitting - at arm's length,

 and then (c) replace the three panels with their 25 or 

so

 connections.....all this before the weather deteriorates 

further. I smell

 snow.

 

            If you've got this far, you probably have 

contemplated this tiny

 setback and more likely know how to conquer it. If so, I 

beg your knowledge.

 

            In the meantime give that cable lock one more 

gronch.....

 

Ferg

 

 C-FFGG

 

 914 mono CS prop

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

f.kyle(at)sympatico.ca
Guest

Posted: Fri Sep 28, 2012 5:43 am Post subject: The 914 saga

David -

            “Fergus, That widget holding the cable in the wheel on top 

of the turbo control unit has a disc under the screw. Make 

sure it didn't lose any bits  while it went round the 

cockpit. You can take the spring off at the turbo end and 

then simply pull the cable back and fix it. If you have 

fired up the electrics you will know that the waste gate 

cycles when you first switch on. The right position for it 

is with the master switch on, the throttle at closed and 

the waste gate closed ( i.e: with the cable pulled right 

back). You can do minor adjustments at the other end of 

the cable.I have reassembled / readjusted/ fiddled around 

with that fixing a number of times and never had a problem 

yet. Best of luck! It WILL BE WORTH IT! David, G-XSDJ”

 

      Yes, my heart dropped when the widget went flying (I am in the right-side cockpit - on the trailer - in the garden) and I heard it tinkling on and off a number of surfaces behind my feet. Of course I was heartened to find it was the whole widget, screw in, holding the small brass disc captive - but thanks for the heads-up...

      I think it all began when a young visitor flicked the power switch and a pop rang out - the relay. He flicked it closed quickly and I think it put the Turbo Motor setting out of whack. When I went to re-assemble the motor pulley, there was about 55mm of cable missing and I could not re-site the pulley. The tech at the agency suggested that the motor setting was at fault, but I had pulled the waste gate lever to fully closed with a bungee and still not enough cable emerged from the firewall. I think I will have to examine the waste gate to see if anything is jamming it partially open. I am hesitant to readjust the forward end of the cable for fear of never re-acquiring the original length. Ah me. 

      Thank you for your advice and time............

Ferg

I have about two days of good weather until the next downwash from the Pacific arrives........

 

 

 [quote][b]

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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